2013 |
Gerstner, Timothy; DeCarlo, Doug; Alexa, Marc; Finkelstein, Adam; Gingold, Yotam; Nealen, Andrew Pixelated image abstraction with integrated user constraints (Article) Computers & Graphics, 2013, ISSN: 0097-8493. (BibTeX) @article{Gerstner2013,
title = {Pixelated image abstraction with integrated user constraints},
author = {Timothy Gerstner and Doug DeCarlo and Marc Alexa and Adam Finkelstein and Yotam Gingold and Andrew Nealen},
issn = {0097-8493},
year = {2013},
date = {2013-05-05},
journal = {Computers & Graphics},
keywords = {}
}
|
2012 |
Eitz, Mathias; Richter, Ronald; Hildebrand, Kristian; Boubekeur, Tamy; Alexa, Marc Sketch-Based Shape Retrieval (Article) ACM Transactions on Graphics, Proceedings SIGGRAPH (to appear), 31 (4), 2012. (Abstract | Links | BibTeX) @article{Eitz2012,
title = {Sketch-Based Shape Retrieval},
author = {Eitz, Mathias and Richter, Ronald and Hildebrand, Kristian and Boubekeur, Tamy and Alexa, Marc},
url = {http://cybertron.cg.tu-berlin.de/eitz/projects/sbsr, Project Page
http://dl.acm.org/authorize?243800, ACM DL
http://cybertron.cg.tu-berlin.de/kristian/movies/sig12_sbsr.mp4, Movie
http://cybertron.cg.tu-berlin.de/eitz/slides/sig12_sbsr.pptx, Slides
http://scholar.google.de/citations?view_op=view_citation&hl=en&user=KNwXLLsAAAAJ&sortby=pubdate&citation_for_view=KNwXLLsAAAAJ:WbkHhVStYXYC, Google Scholar},
year = {2012},
date = {2012-08-02},
journal = {ACM Transactions on Graphics, Proceedings SIGGRAPH (to appear)},
volume = {31},
number = {4},
abstract = {We develop a system for 3D object retrieval based on sketched feature lines as input. For objective evaluation, we collect a large number of query sketches from human users that are related to an existing data base of objects. The sketches turn out to be generally quite abstract with large local and global deviations from the original shape. Based on this observation, we decide to use a bag-of-features approach over computer generated line drawings of the objects. We develop a targeted feature transform based on Gabor filters for this system. We can show objectively that this transform is better suited than other approaches from the literature developed for similar tasks. Moreover, we demonstrate how to optimize the parameters of our, as well as other approaches, based on the gathered sketches. In the resulting comparison, our approach is significantly better than any other system described so far.},
keywords = {}
}
We develop a system for 3D object retrieval based on sketched feature lines as input. For objective evaluation, we collect a large number of query sketches from human users that are related to an existing data base of objects. The sketches turn out to be generally quite abstract with large local and global deviations from the original shape. Based on this observation, we decide to use a bag-of-features approach over computer generated line drawings of the objects. We develop a targeted feature transform based on Gabor filters for this system. We can show objectively that this transform is better suited than other approaches from the literature developed for similar tasks. Moreover, we demonstrate how to optimize the parameters of our, as well as other approaches, based on the gathered sketches. In the resulting comparison, our approach is significantly better than any other system described so far. |
Gerstner, Timothy; DeCarlo, Doug; Alexa, Marc; Finkelstein, Adam; Gingold, Yotam; Nealen, Andrew Pixelated image abstraction (Inproceeding) Proceedings of the Symposium on Non-Photorealistic Animation and Rendering, pp. 29–36, Eurographics Association, Aire-la-Ville, Switzerland, Switzerland, 2012, ISBN: 978-3-905673-90-6. (Abstract | Links | BibTeX) @inproceedings{Gerstner:2012:PIA:2330147.2330154,
title = {Pixelated image abstraction},
author = {Gerstner, Timothy and DeCarlo, Doug and Alexa, Marc and Finkelstein, Adam and Gingold, Yotam and Nealen, Andrew},
url = {http://dl.acm.org/citation.cfm?id=2330147.2330154, ACM DL},
isbn = {978-3-905673-90-6},
year = {2012},
date = {2012-05-09},
booktitle = {Proceedings of the Symposium on Non-Photorealistic Animation and Rendering},
pages = {29--36},
publisher = {Eurographics Association},
address = {Aire-la-Ville, Switzerland, Switzerland},
series = {NPAR '12},
abstract = {We present an automatic method that can be used to abstract high resolution images into very low resolution outputs with reduced color palettes in the style of pixel art. Our method simultaneously solves for a mapping of features and a reduced palette needed to construct the output image. The results are an approximation to the results generated by pixel artists. We compare our method against the results of a naive process common to image manipulation programs, as well as the hand-crafted work of pixel artists. Through a formal user study and interviews with expert pixel artists we show that our results offer an improvement over the naive methods.},
keywords = {}
}
We present an automatic method that can be used to abstract high resolution images into very low resolution outputs with reduced color palettes in the style of pixel art. Our method simultaneously solves for a mapping of features and a reduced palette needed to construct the output image. The results are an approximation to the results generated by pixel artists. We compare our method against the results of a naive process common to image manipulation programs, as well as the hand-crafted work of pixel artists. Through a formal user study and interviews with expert pixel artists we show that our results offer an improvement over the naive methods. |
Bermano, Amit; Baran, Ilya; Alexa, Marc; Matusk, Wojciech ShadowPix: Multiple Images from Self Shadowing (Article) Computer Graphics Forum, 31 (2pt3), pp. 593–602, 2012, ISSN: 0167-7055. (Links | BibTeX) @article{Bermano:2012:SHP:2322116.2322129,
title = {ShadowPix: Multiple Images from Self Shadowing},
author = {Bermano, Amit and Baran, Ilya and Alexa, Marc and Matusk, Wojciech},
url = {http://dx.doi.org/10.1111/j.1467-8659.2012.03038.x, Publisher},
issn = {0167-7055},
year = {2012},
date = {2012-05-01},
journal = {Computer Graphics Forum},
volume = {31},
number = {2pt3},
pages = {593--602},
publisher = {John Wiley & Sons, Inc.},
address = {New York, NY, USA},
keywords = {}
}
|
Hildebrand, Kristian; Bickel, Bernd; Alexa, Marc crdbrd : Shape Fabrication by Sliding Planar Slices (Article) Computer Graphics Forum (Eurographics 2012), 31 (2), 2012. (Abstract | Links | BibTeX) @article{Hildebrand2012,
title = {crdbrd : Shape Fabrication by Sliding Planar Slices},
author = {Hildebrand, Kristian and Bickel, Bernd and Alexa, Marc},
url = {http://cybertron.cg.tu-berlin.de/kristian/files/crdbrd.pdf, Full Paper
http://cybertron.cg.tu-berlin.de/kristian/movies/crdbrd.mp4, Movie
http://cybertron.cg.tu-berlin.de/kristian/files/eg2012-crdbrd.ppt, Slides
http://scholar.google.de/citations?view_op=view_citation&hl=en&user=KNwXLLsAAAAJ&sortby=pubdate&citation_for_view=KNwXLLsAAAAJ:tOudhMTPpwUC, Google Scholar},
year = {2012},
date = {2012-01-01},
journal = {Computer Graphics Forum (Eurographics 2012)},
volume = {31},
number = {2},
abstract = {We introduce an algorithm and representation for fabricating 3D shape abstractions using mutually intersecting planar cut-outs. The planes have prefabricated slits at their intersections and are assembled by sliding them together. Based on an analysis of construction rules, we propose an extended binary space partitioning tree as an efficient representation of such cardboard models which allows us to quickly evaluate the feasibility of newly added planar elements. The complexity of insertion order quickly increases with the number of planar elements and manual analysis becomes intractable. We provide tools for generating cardboard sculptures with guaranteed constructibility.},
keywords = {}
}
We introduce an algorithm and representation for fabricating 3D shape abstractions using mutually intersecting planar cut-outs. The planes have prefabricated slits at their intersections and are assembled by sliding them together. Based on an analysis of construction rules, we propose an extended binary space partitioning tree as an efficient representation of such cardboard models which allows us to quickly evaluate the feasibility of newly added planar elements. The complexity of insertion order quickly increases with the number of planar elements and manual analysis becomes intractable. We provide tools for generating cardboard sculptures with guaranteed constructibility. |
Eitz, Mathias; Hays, James; Alexa, Marc How Do Humans Sketch Objects? (Article) ACM Transactions on Graphics (Proceedings SIGGRAPH), 31 (4), pp. 44:1–44:10, 2012. (Abstract | Links | BibTeX) @article{eitz2012hdhso,
title = {How Do Humans Sketch Objects?},
author = {Eitz, Mathias and Hays, James and Alexa, Marc},
url = {http://cybertron.cg.tu-berlin.de/eitz/projects/classifysketch, Project Page
http://dl.acm.org/authorize?6726876, ACM DL
http://cybertron.cg.tu-berlin.de/eitz/movies/sig12_classifysketch.mp4, Movie
http://cybertron.cg.tu-berlin.de/eitz/slides/sig12_classification.pptx, Slides
http://itunes.apple.com/app/whatsmysketch/id542242001, iOS Application},
year = {2012},
date = {2012-01-01},
journal = {ACM Transactions on Graphics (Proceedings SIGGRAPH)},
volume = {31},
number = {4},
pages = {44:1--44:10},
abstract = {Humans have used sketching to depict our visual world since prehistoric times. Even today, sketching is possibly the only rendering technique readily available to all humans. This paper is the first large scale exploration of human sketches. We analyze the distribution of non-expert sketches of everyday objects such as ‘teapot’ or ‘car’. We ask humans to sketch objects of a given category and gather 20,000 unique sketches evenly distributed over 250 object categories. With this dataset we perform a perceptual study and find that humans can correctly identify the object category of a sketch 73% of the time. We compare human performance against computational recognition methods. We develop a bag-of-features sketch representation and use multi-class support vector machines, trained on our sketch dataset, to classify sketches. The resulting recognition method is able to identify unknown sketches with 56% accuracy (chance is 0.4%). Based on the computational model, we demonstrate an interactive sketch recognition system. We release the complete crowd-sourced dataset of sketches to the community.},
keywords = {}
}
Humans have used sketching to depict our visual world since prehistoric times. Even today, sketching is possibly the only rendering technique readily available to all humans. This paper is the first large scale exploration of human sketches. We analyze the distribution of non-expert sketches of everyday objects such as ‘teapot’ or ‘car’. We ask humans to sketch objects of a given category and gather 20,000 unique sketches evenly distributed over 250 object categories. With this dataset we perform a perceptual study and find that humans can correctly identify the object category of a sketch 73% of the time. We compare human performance against computational recognition methods. We develop a bag-of-features sketch representation and use multi-class support vector machines, trained on our sketch dataset, to classify sketches. The resulting recognition method is able to identify unknown sketches with 56% accuracy (chance is 0.4%). Based on the computational model, we demonstrate an interactive sketch recognition system. We release the complete crowd-sourced dataset of sketches to the community. |
2011 |
Eitz, Mathias; Hildebrand, Kristian; Boubekeur, Tamy; Alexa, Marc Sketch-Based Image Retrieval: Benchmark and Bag-of-Features Descriptors (Article) IEEE transactions on visualization and computer graphics, 2011. (Abstract | Links | BibTeX) @article{Eitz2010,
title = {Sketch-Based Image Retrieval: Benchmark and Bag-of-Features Descriptors},
author = {Eitz, Mathias and Hildebrand, Kristian and Boubekeur, Tamy and Alexa, Marc},
url = {http://cybertron.cg.tu-berlin.de/eitz/tvcg_benchmark/index.html, Project Webpage http://cybertron.cg.tu-berlin.de/kristian/files/sbir.pdf, Full Paper http://www.ncbi.nlm.nih.gov/pubmed/21173450, PubMed http://cybertron.cg.tu-berlin.de/kristian/movies/sbir.mp4, Movie http://scholar.google.de/citations?view_op=view_citation&hl=en&user=KNwXLLsAAAAJ&cstart=20&sortby=pubdate&citation_for_view=KNwXLLsAAAAJ:TFP_iSt0sucC, Google Scholar},
year = {2011},
date = {2011-01-01},
journal = {IEEE transactions on visualization and computer graphics},
abstract = {We introduce a benchmark for evaluating the performance of large scale sketch-based image retrieval systems. The necessary data is acquired in a controlled user study where subjects rate how well given sketch/image pairs match. We suggest how to use the data for evaluating the performance of sketch-based image retrieval systems. The benchmark data as well as the large image database are made publicly available for further studies of this type. Furthermore, we develop new descriptors based on the bag-of-features approach and use the benchmark to demonstrate that they significantly outperform other descriptors in the literature.},
keywords = {}
}
We introduce a benchmark for evaluating the performance of large scale sketch-based image retrieval systems. The necessary data is acquired in a controlled user study where subjects rate how well given sketch/image pairs match. We suggest how to use the data for evaluating the performance of sketch-based image retrieval systems. The benchmark data as well as the large image database are made publicly available for further studies of this type. Furthermore, we develop new descriptors based on the bag-of-features approach and use the benchmark to demonstrate that they significantly outperform other descriptors in the literature. |
Eitz, Mathias; Richter, Ronald; Hildebrand, Kristian; Boubekeur, Tamy; Alexa, Marc Photosketcher: Interactive Sketch-Based Image Synthesis (Article) IEEE Computer Graphics and Applications, 31 (6), pp. 56–66, 2011. (Abstract | Links | BibTeX) @article{Eitz2011,
title = {Photosketcher: Interactive Sketch-Based Image Synthesis},
author = {Eitz, Mathias and Richter, Ronald and Hildebrand, Kristian and Boubekeur, Tamy and Alexa, Marc},
url = {http://cybertron.cg.tu-berlin.de/eitz/pdf/2011_cga_photosketcher.pdf, Full Paper http://dx.doi.org/10.1109/MCG.2011.67, DOI http://scholar.google.de/citations?view_op=view_citation&hl=en&user=KNwXLLsAAAAJ&cstart=20&sortby=pubdate&citation_for_view=KNwXLLsAAAAJ:hC7cP41nSMkC, Google Scholar},
year = {2011},
date = {2011-01-01},
journal = {IEEE Computer Graphics and Applications},
volume = {31},
number = {6},
pages = {56--66},
abstract = {We introduce Photosketcher, an interactive system for progressively synthesizing novel images using only sparse user sketches as the input. Compared to existing approaches for synthesising images from parts of other images, Photosketcher works on the image content exclusively, no keywords or other metadata associated with the images is required. Users sketch the rough shape of a desired image part and we automatically search a large collection of images for images containing that part. The search is based on a bag-of-features approach using local descriptors for translation invariant part retrieval. The compositing step again is based on user scribbles: from the scribbles we predict the desired part using Gaussian Mixture Models and compute an optimal seam using Graphcut. Optionally, Photosketcher lets users blend the composite image in the gradient domain to further reduce visible seams. We demonstrate that the resulting system allows interactive generation of complex images.},
keywords = {}
}
We introduce Photosketcher, an interactive system for progressively synthesizing novel images using only sparse user sketches as the input. Compared to existing approaches for synthesising images from parts of other images, Photosketcher works on the image content exclusively, no keywords or other metadata associated with the images is required. Users sketch the rough shape of a desired image part and we automatically search a large collection of images for images containing that part. The search is based on a bag-of-features approach using local descriptors for translation invariant part retrieval. The compositing step again is based on user scribbles: from the scribbles we predict the desired part using Gaussian Mixture Models and compute an optimal seam using Graphcut. Optionally, Photosketcher lets users blend the composite image in the gradient domain to further reduce visible seams. We demonstrate that the resulting system allows interactive generation of complex images. |
Eitz, Mathias; Hays, James Learning to classify human object sketches (Inproceeding) SIGGRAPH 2011: Talks, 2011. (Abstract | Links | BibTeX) @inproceedings{eitz2011lch,
title = {Learning to classify human object sketches},
author = {Eitz, Mathias and Hays, James},
url = {http://cybertron.cg.tu-berlin.de/eitz/pdf/2011_classifysketch.pdf, Full Paper http://cybertron.cg.tu-berlin.de/eitz/movies/sig11_classifysketch.mp4, Movie http://cybertron.cg.tu-berlin.de/eitz/slides/sig11_classifysketch.zip, Slides http://dx.doi.org/10.1145/2037826.2037865, DOI},
year = {2011},
date = {2011-01-01},
booktitle = {SIGGRAPH 2011: Talks},
abstract = {We present ongoing work on object category recognition from binary human outline sketches. We first define a novel set of 187 “sketchable” object categories by extracting the labels of the most frequent objects in the LabelMe dataset. In a large-scale experiment, we then gather a dataset of over 5,500 human sketches, evenly distributed over all categories. We show that by training multi-class support vector machines on this dataset, we can classify novel sketches with high accuracy. We demonstrate this in an interactive sketching application that progressively updates its category prediction as users add more strokes to a sketch.},
keywords = {}
}
We present ongoing work on object category recognition from binary human outline sketches. We first define a novel set of 187 “sketchable” object categories by extracting the labels of the most frequent objects in the LabelMe dataset. In a large-scale experiment, we then gather a dataset of over 5,500 human sketches, evenly distributed over all categories. We show that by training multi-class support vector machines on this dataset, we can classify novel sketches with high accuracy. We demonstrate this in an interactive sketching application that progressively updates its category prediction as users add more strokes to a sketch. |
Marc Alexa, Max Wardetzky Discrete Laplacians on General Polygonal Meshes (Inproceeding) 2011. (Abstract | Links | BibTeX) @inproceedings{polygonallaplacians,
title = {Discrete Laplacians on General Polygonal Meshes},
author = {Marc Alexa, Max Wardetzky},
url = {http://ddg.math.uni-goettingen.de/pub/Polygonal_Laplace.pdf, Full Paper http://xshape.org/xshape/discrete-laplacians-on-general-polygonal-meshes/, Project Page},
year = {2011},
date = {2011-01-01},
journal = {Acm Transactions on Graphics},
volume = {2011},
number = {30},
abstract = {While the theory and applications of discrete Laplacians on triangulated surfaces are abundantly developed, far less is known about the general polygonal case. We present here a principled approach for constructing geometric discrete Laplacians on surfaces with arbitrary polygonal faces, encompassing non-planar and non-convex polygons. Our construction is guided by closely mimicking structural properties of the smooth Laplace-Beltrami operator. Among other features, our construction leads to a methodical extension of the widely employed cotan formula from triangles to polygons. Besides carefully laying out theoretical aspects, we demonstrate the versatility of our approach for a variety of geometry processing applications, embarking on situations that would have been more difficult to achieve based on geometric Laplacians for simplicial meshes or purely combinatorial Laplacians for general meshes.},
keywords = {}
}
While the theory and applications of discrete Laplacians on triangulated surfaces are abundantly developed, far less is known about the general polygonal case. We present here a principled approach for constructing geometric discrete Laplacians on surfaces with arbitrary polygonal faces, encompassing non-planar and non-convex polygons. Our construction is guided by closely mimicking structural properties of the smooth Laplace-Beltrami operator. Among other features, our construction leads to a methodical extension of the widely employed cotan formula from triangles to polygons. Besides carefully laying out theoretical aspects, we demonstrate the versatility of our approach for a variety of geometry processing applications, embarking on situations that would have been more difficult to achieve based on geometric Laplacians for simplicial meshes or purely combinatorial Laplacians for general meshes. |
Hahne, Uwe; Alexa, Marc Exposure Fusion for Time-Of-Flight Imaging (Inproceeding) Proceedings of Pacific Graphics 2011, 2011, (to appear). (Abstract | BibTeX) @inproceedings{Hahne:2011:EFT,
title = {Exposure Fusion for Time-Of-Flight Imaging},
author = {Uwe Hahne and Marc Alexa},
year = {2011},
date = {2011-01-01},
booktitle = {Proceedings of Pacific Graphics 2011},
volume = {30 (2011)},
number = {7},
abstract = {This work deals with the problem of automatically choosing the correct exposure (or integration) time for time-of-flight depth image capturing. We apply methods known from high dynamic range imaging to combine depth images taken with differing integration times in order to produce high quality depth maps. We evaluate the quality of these depth maps by comparing the performance in reconstruction of planar textured patches and in the 3D reconstruction of an indoor scene. Our solution is fast enough to capture the images at interactive frame rates and also flexible to deal with any amount of exposures.},
note = {to appear},
keywords = {}
}
This work deals with the problem of automatically choosing the correct exposure (or integration) time for time-of-flight depth image capturing. We apply methods known from high dynamic range imaging to combine depth images taken with differing integration times in order to produce high quality depth maps. We evaluate the quality of these depth maps by comparing the performance in reconstruction of planar textured patches and in the 3D reconstruction of an indoor scene. Our solution is fast enough to capture the images at interactive frame rates and also flexible to deal with any amount of exposures. |
2010 |
Eitz, Mathias; Hildebrand, Kristian; Boubekeur, Tamy; Alexa, Marc An evaluation of descriptors for large-scale image retrieval from sketched feature lines (Article) Computers & Graphics, 34, pp. 482––498, 2010. (Abstract | Links | BibTeX) @article{Eitz2010a,
title = {An evaluation of descriptors for large-scale image retrieval from sketched feature lines},
author = {Eitz, Mathias and Hildebrand, Kristian and Boubekeur, Tamy and Alexa, Marc},
url = {http://cybertron.cg.tu-berlin.de/eitz/pdf/2010_cag.pdf, Full Paper http://dx.doi.org/10.1016%2fj.cag.2010.07.002, DOI http://scholar.google.de/citations?view_op=view_citation&hl=en&user=KNwXLLsAAAAJ&cstart=20&sortby=pubdate&citation_for_view=KNwXLLsAAAAJ:mB3voiENLucC, Google Scholar},
year = {2010},
date = {2010-01-01},
journal = {Computers & Graphics},
volume = {34},
pages = {482----498},
abstract = {We address the problem of fast, large scale sketch-based image retrieval, searching in a database of over one million images. We show that current retrieval methods do not scale well towards large databases in the context of interactively supervised search and propose two different approaches for which we objectively evaluate that they significantly outperform existing approaches. The proposed descriptors are constructed such that both the full color image and the sketch undergo exactly the same preprocessing steps. We first search for an image with similar structure, analyzing gradient orientations. Then, best matching images are clustered based on dominant color distributions, to offset the lack of color-based decision during the initial search. Overall, the query results demonstrate that the system offers intuitive access to large image databases using a user-friendly sketch-and-browse interface.},
keywords = {}
}
We address the problem of fast, large scale sketch-based image retrieval, searching in a database of over one million images. We show that current retrieval methods do not scale well towards large databases in the context of interactively supervised search and propose two different approaches for which we objectively evaluate that they significantly outperform existing approaches. The proposed descriptors are constructed such that both the full color image and the sketch undergo exactly the same preprocessing steps. We first search for an image with similar structure, analyzing gradient orientations. Then, best matching images are clustered based on dominant color distributions, to offset the lack of color-based decision during the initial search. Overall, the query results demonstrate that the system offers intuitive access to large image databases using a user-friendly sketch-and-browse interface. |
Eitz, Mathias; Hildebrand, Kristian; Boubekeur, Tamy; Alexa, Marc; Cnrs, Telecom Paristech Sketch-based 3D shape retrieval (Article) ACM SIGGRAPH 2010 Talks, 2010. (Abstract | Links | BibTeX) @article{Eitz2010b,
title = {Sketch-based 3D shape retrieval},
author = {Eitz, Mathias and Hildebrand, Kristian and Boubekeur, Tamy and Alexa, Marc and Cnrs, Telecom Paristech},
url = {http://cybertron.cg.tu-berlin.de/eitz/pdf/2010_sbsr.pdf, Full Paper http://cybertron.cg.tu-berlin.de/eitz/movies/sig10_sbsr.mov, Movie http://cybertron.cg.tu-berlin.de/eitz/slides/sig10_sbsr.pptx, Slides http://dx.doi.org/10.1145/1837026.1837033, DOI http://scholar.google.de/citations?view_op=view_citation&hl=en&user=KNwXLLsAAAAJ&cstart=20&sortby=pubdate&citation_for_view=KNwXLLsAAAAJ:RGFaLdJalmkC, Google Scholar},
year = {2010},
date = {2010-01-01},
journal = {ACM SIGGRAPH 2010 Talks},
abstract = {As large collections of 3D models are starting to become as common as public image collections, the need arises to quickly locate models in such collections. Models are often insufficiently annotated such that a keyword based search is not promising. Our approach for content based searching of 3D models relies entirely on visual analysis and is based on the observation that a large part of our perception of shapes stems from their salient features, usually captured by dominant lines in their display. Recent research on such feature lines has shown that 1) people mostly draw the same lines when asked to depict a certain model and 2) the shape of an object is well represented by the set of feature lines generated by recent NPR line drawing algorithms. Consequently, we suggest an image based approach for 3D shape retrieval, exploiting the similarity of human sketches and the results of current line drawing algorithms. Our search engine takes a sketch of the desired model drawn by a user as the input and compares this sketch to a set of line drawings automatically generated for each of the models in the collection.},
keywords = {}
}
As large collections of 3D models are starting to become as common as public image collections, the need arises to quickly locate models in such collections. Models are often insufficiently annotated such that a keyword based search is not promising. Our approach for content based searching of 3D models relies entirely on visual analysis and is based on the observation that a large part of our perception of shapes stems from their salient features, usually captured by dominant lines in their display. Recent research on such feature lines has shown that 1) people mostly draw the same lines when asked to depict a certain model and 2) the shape of an object is well represented by the set of feature lines generated by recent NPR line drawing algorithms. Consequently, we suggest an image based approach for 3D shape retrieval, exploiting the similarity of human sketches and the results of current line drawing algorithms. Our search engine takes a sketch of the desired model drawn by a user as the input and compares this sketch to a set of line drawings automatically generated for each of the models in the collection. |
Richter, Ronald; Eitz, Mathias; Alexa, Marc Interactively Browsing Large Image Collections (Inproceeding) SIGGRAPH 2010: Talks, 2010. (Abstract | Links | BibTeX) @inproceedings{richter2010browsing,
title = {Interactively Browsing Large Image Collections},
author = {Richter, Ronald and Eitz, Mathias and Alexa, Marc},
url = {http://cybertron.cg.tu-berlin.de/eitz/pdf/2010_browsing.pdf, Full Paper http://cybertron.cg.tu-berlin.de/eitz/movies/sig10_browsing.mov, Movie http://cybertron.cg.tu-berlin.de/eitz/slides/sig10_browsing.pptx, Slides http://dx.doi.org/10.1145/1837026.1837081, DOI},
year = {2010},
date = {2010-01-01},
booktitle = {SIGGRAPH 2010: Talks},
abstract = {In this paper, we propose a novel method for interactively browsing large image collections, making the user an integral part of the interactive exploration by repeatedly exploiting the amazing ability of humans to quickly identify relevant images from a large set. The method requires only minimal input effort: users simply point to the image in the current display that seems most attractive to them. The system then assembles a representative set of other images from the collection that are likely in its perceptual vicinity. The resulting browsing approach is -- even for novice users -- extremely simple to use and enables an interactive exploration of the collection as well as target-oriented selection towards a specific mental image model.},
keywords = {}
}
In this paper, we propose a novel method for interactively browsing large image collections, making the user an integral part of the interactive exploration by repeatedly exploiting the amazing ability of humans to quickly identify relevant images from a large set. The method requires only minimal input effort: users simply point to the image in the current display that seems most attractive to them. The system then assembles a representative set of other images from the collection that are likely in its perceptual vicinity. The resulting browsing approach is -- even for novice users -- extremely simple to use and enables an interactive exploration of the collection as well as target-oriented selection towards a specific mental image model. |
Buchholz, Bert; Boubekeur, Tamy; DeCarlo, Doug; Alexa, Marc Binary Shading Using Geometry and Appearance (Article) Computer Graphics Forum, 29 (6), pp. 1981-1992, 2010. (BibTeX) @article{Buchholz:2010:BSAG,
title = {Binary Shading Using Geometry and Appearance},
author = {Bert Buchholz and Tamy Boubekeur and Doug DeCarlo and Marc Alexa},
year = {2010},
date = {2010-01-01},
journal = {Computer Graphics Forum},
volume = {29},
number = {6},
pages = {1981-1992},
keywords = {}
}
|
Öztireli, Cengiz; Alexa, Marc; Gross, Markus Spectral Sampling of Manifolds (Article) ACM Transactions on Graphics, 29 (5), pp. 1–7, 2010. (Links | BibTeX) @article{Oztireli:2010:RAI,
title = {Spectral Sampling of Manifolds},
author = {Öztireli, Cengiz and Alexa, Marc and Gross, Markus},
url = {http://dl.acm.org/authorize?313592, ACM DL},
year = {2010},
date = {2010-01-01},
journal = {ACM Transactions on Graphics},
volume = {29},
number = {5},
pages = {1–7},
publisher = {ACM},
address = {New York, NY, USA},
keywords = {}
}
|
Winkler, Tim; Drieseberg, Jens; Alexa, Marc; Hormann, Kai Multi-Scale Geometry Interpolation (Article) Computer Graphics Forum, 29 (2), pp. 309-318, 2010, (Proceedings of Eurographics). (Links | BibTeX) @article{Winkler:2010:MSG,
title = {Multi-Scale Geometry Interpolation},
author = {Tim Winkler and Jens Drieseberg and Marc Alexa and Kai Hormann},
url = {http://www.youtube.com/watch?v=gDPyiDmkcQ4, Video on YouTube},
year = {2010},
date = {2010-01-01},
journal = {Computer Graphics Forum},
volume = {29},
number = {2},
pages = {309-318},
note = {Proceedings of Eurographics},
keywords = {}
}
|
Alexa, Marc; Matusik, Wojciech Reliefs as images (Article) ACM Transactions on Graphics, 29 (4), pp. 1–7, 2010, ISSN: 0730-0301. (BibTeX) @article{Alexa:2010:RAI,
title = {Reliefs as images},
author = {Alexa, Marc and Matusik, Wojciech},
issn = {0730-0301},
year = {2010},
date = {2010-01-01},
journal = {ACM Transactions on Graphics},
volume = {29},
number = {4},
pages = {1–7},
publisher = {ACM},
address = {New York, NY, USA},
keywords = {}
}
|
2009 |
Alexa, Marc; Adamson, Anders Interpolatory Point Set Surfaces -- Convexity and Hermite Data (Article) ACM Transactions on Computer Graphics, 28 (2), pp. 1-10, 2009, ISSN: 0730-0301. (Links | BibTeX) @article{Alexa:2009:IPS,
title = {Interpolatory Point Set Surfaces -- Convexity and Hermite Data},
author = {Marc Alexa and Anders Adamson},
url = {http://www.cg.tu-berlin.de/fileadmin/fg144/Research/Publications/pdf/hpss_tog.pdf},
issn = {0730-0301},
year = {2009},
date = {2009-01-01},
journal = {ACM Transactions on Computer Graphics},
volume = {28},
number = {2},
pages = {1-10},
publisher = {ACM},
address = {New York, NY, USA},
keywords = {}
}
|
Christoph Reinbothe Tamy Boubekeur, Marc Alexa Hybrid Ambient Occlusion (Inproceeding) EUROGRAPHICS 2009 Areas Papers, 2009. (Links | BibTeX) @inproceedings{Reinbothe:2009:HAO,
title = {Hybrid Ambient Occlusion},
author = {Christoph Reinbothe, Tamy Boubekeur, Marc Alexa},
url = {http://perso.telecom-paristech.fr/~boubek/papers/HAO/},
year = {2009},
date = {2009-01-01},
booktitle = {EUROGRAPHICS 2009 Areas Papers},
keywords = {}
}
|
Boubekeur, Tamy; Alexa, Marc Mesh Simplification by Stochastic Sampling and Topological Clustering (Article) Computers and Graphics, 33 (3), pp. 241 - 249, 2009, ISSN: 0097-8493. (Links | BibTeX) @article{Boubekeur:2009:MSB,
title = {Mesh Simplification by Stochastic Sampling and Topological Clustering},
author = {Tamy Boubekeur and Marc Alexa},
url = {http://www.telecom-paristech.fr/~boubek/papers/TopStoc/},
issn = {0097-8493},
year = {2009},
date = {2009-01-01},
journal = {Computers and Graphics},
volume = {33},
number = {3},
pages = {241 - 249},
publisher = {Pergamon Press},
address = {Elmsford, NY, USA},
keywords = {}
}
|
Uwe Hahne Jonas Schild, Stefan Elstner; Alexa, Marc Multi-touch focus+context sketch-based interaction (Inproceeding) SBIM '09: Proceedings of the 6th Eurographics Symposium on Sketch-Based Interfaces and Modeling, pp. 77-83, ACM, 2009, ISBN: 978-1-60558-602-1. (Links | BibTeX) @inproceedings{Hahne:2009:MTF,
title = {Multi-touch focus+context sketch-based interaction},
author = {Uwe Hahne, Jonas Schild, Stefan Elstner, and Marc Alexa},
url = {http://portal.acm.org/citation.cfm?id=1572741.1572755&coll=DL&dl=GUIDE&CFID=8594237&CFTOKEN=18191470},
isbn = {978-1-60558-602-1},
year = {2009},
date = {2009-01-01},
booktitle = {SBIM '09: Proceedings of the 6th Eurographics Symposium on Sketch-Based Interfaces and Modeling},
pages = {77-83},
publisher = {ACM},
keywords = {}
}
|
Mathias Eitz Kristian Hildebrand, Tamy Boubkeur; Alexa, Marc A descriptor for large scale image retrieval based on sketched feature lines (Inproceeding) Sketch-Based Interfaces and Modeling, pp. 29-36, 2009. (Links | BibTeX) @inproceedings{Eitz:2009:ADF,
title = {A descriptor for large scale image retrieval based on sketched feature lines},
author = {Mathias Eitz, Kristian Hildebrand, Tamy Boubkeur, and Marc Alexa},
url = {http://www.cg.tu-berlin.de/fileadmin/fg144/Research/Projects/PhotoSketch/sbir.pdf},
year = {2009},
date = {2009-01-01},
booktitle = {Sketch-Based Interfaces and Modeling},
pages = {29-36},
keywords = {}
}
|
Andy Nealen Justus Pett, Marc Alexa Takeo Igarashi GridMesh: Fast and high quality 2D Mesh generation for interactive 3D shape modeling (Inproceeding) IEEE International Conference on Shape Modeling and Applications, pp. 155-162, 2009. (Links | BibTeX) @inproceedings{Nealen:2009:GFA,
title = {GridMesh: Fast and high quality 2D Mesh generation for interactive 3D shape modeling},
author = {Andy Nealen, Justus Pett, Marc Alexa, Takeo Igarashi},
url = {fileadmin/fg144/Research/Publications/pdf/smi_2009_revised.pdf},
year = {2009},
date = {2009-01-01},
booktitle = {IEEE International Conference on Shape Modeling and Applications},
pages = {155-162},
keywords = {}
}
|
Hahne, Uwe; Alexa, Marc Depth Imaging by Combinging Time-of-flight and on-demand stereo (Article) Lecture Notes in Computer Science, 5742, pp. 70-83, 2009. (Abstract | Links | BibTeX) @article{Hahne:2009:DIB,
title = {Depth Imaging by Combinging Time-of-flight and on-demand stereo},
author = {Uwe Hahne and Marc Alexa},
editor = {Kolb, Andreas and Koch, Reinhard},
url = {http://www.springerlink.com/content/01q054627663rg17/},
year = {2009},
date = {2009-01-01},
booktitle = {Dynamic 3D Imaging},
journal = {Lecture Notes in Computer Science},
volume = {5742},
pages = {70-83},
publisher = {Springer Berlin / Heidelberg},
series = {Lecture Notes in Computer Science},
abstract = {In this paper we present a framework for computing depth images at interactive rates. Our approach is based on combining time-of-flight (TOF) range data with stereo vision. We use a per-frame confidence map extracted from the TOF sensor data in two ways for improving the disparity estimation in the stereo part: first, together with the TOF range data for initializing and constraining the disparity range; and, second, together with the color image information for segmenting the data into depth continuous areas, enabling the use of adaptive windows for the disparity search. The resulting depth images are more accurate than from either of the sensors. In an example application we use the depth map to initialize the z-buffer so that virtual objects can be occluded by real objects in an augmented reality scenario.},
keywords = {}
}
In this paper we present a framework for computing depth images at interactive rates. Our approach is based on combining time-of-flight (TOF) range data with stereo vision. We use a per-frame confidence map extracted from the TOF sensor data in two ways for improving the disparity estimation in the stereo part: first, together with the TOF range data for initializing and constraining the disparity range; and, second, together with the color image information for segmenting the data into depth continuous areas, enabling the use of adaptive windows for the disparity search. The resulting depth images are more accurate than from either of the sensors. In an example application we use the depth map to initialize the z-buffer so that virtual objects can be occluded by real objects in an augmented reality scenario. |
, Proceedings of the Eurographics/ACM Symposium on Geometry Processing 2009 (Book) Blackwell, 2009, ISSN: 1727-8384. (BibTeX) @book{Alexa:2009:SGP,
title = {Proceedings of the Eurographics/ACM Symposium on Geometry Processing 2009},
editor = {Marc Alexa and Misha Kazhdan and Konrad Polthier},
issn = {1727-8384},
year = {2009},
date = {2009-01-01},
publisher = {Blackwell},
keywords = {}
}
|
Eitz, Mathias; Hildebrand, Kristian; Boubekeur, Tamy; Alexa, Marc PhotoSketch: a sketch based image query and compositing system (Inproceeding) SIGGRAPH 2009: Talks, 2009. (Links | BibTeX) @inproceedings{Eitz:2009:PAS,
title = {PhotoSketch: a sketch based image query and compositing system},
author = {Eitz, Mathias and Hildebrand, Kristian and Boubekeur, Tamy and Alexa, Marc},
url = {http://dx.doi.org/10.1145/1597990.1598050},
year = {2009},
date = {2009-01-01},
booktitle = {SIGGRAPH 2009: Talks},
keywords = {}
}
|
2008 |
Boubekeur, Tamy; Alexa, Marc Phong Tessellation (Article) ACM Trans. Graphics (Proc. SIGGRAPH Asia), 27 (?), pp. ??-??, 2008. (BibTeX) @article{Boubekeur:2008:PhongTess,
title = {Phong Tessellation},
author = {Tamy Boubekeur and Marc Alexa},
year = {2008},
date = {2008-01-01},
journal = {ACM Trans. Graphics (Proc. SIGGRAPH Asia)},
volume = {27},
number = {?},
pages = {??-??},
keywords = {}
}
|
Bradley, Derek; Boubekeur, Tamy; Heidrich, Wolfgang Accurate Multi-View Reconstruction Using Robust Binocular Stereo and Surface Meshing (Inproceeding) IEEE Conference on Computer Vision and Pattern Recognition - CVPR 08, 2008. (Links | BibTeX) @inproceedings{Bradley:2008:AMR,
title = {Accurate Multi-View Reconstruction Using Robust Binocular Stereo and Surface Meshing},
author = {Derek Bradley and Tamy Boubekeur and Wolfgang Heidrich},
url = {http://perso.telecom-paristech.fr/~boubek/papers/AMR/},
year = {2008},
date = {2008-01-01},
booktitle = {IEEE Conference on Computer Vision and Pattern Recognition - CVPR 08},
keywords = {}
}
|
Baril, Jerome; Boubekeur, Tamy; Gioia, Patrick; Schlick, Christophe Polynomial Wavelet Trees for Bidirectional Texture Functions (Inproceeding) ACM SIGGRAPH 2008 - Talk Program, 2008. (Links | BibTeX) @inproceedings{Baril:2008:PWT,
title = {Polynomial Wavelet Trees for Bidirectional Texture Functions},
author = {Jerome Baril and Tamy Boubekeur and Patrick Gioia and Christophe Schlick},
url = {http://iparla.labri.fr/publications/2008/BBGS08/},
year = {2008},
date = {2008-01-01},
booktitle = {ACM SIGGRAPH 2008 - Talk Program},
keywords = {}
}
|
Bradley, Derek; Boubekeur, Tamy; Heidrich, Wolfgang Accurate Multi-View Reconstruction Using Robust Binocular Stereo and Surface Meshing (Inproceeding) IEEE Conference on Computer Vision and Pattern Recognition - CVPR 08, 2008. (Links | BibTeX) @inproceedings{Bradley:2008:AMR,
title = {Accurate Multi-View Reconstruction Using Robust Binocular Stereo and Surface Meshing},
author = {Derek Bradley and Tamy Boubekeur and Wolfgang Heidrich},
url = {http://perso.telecom-paristech.fr/~boubek/papers/AMR/},
year = {2008},
date = {2008-01-01},
booktitle = {IEEE Conference on Computer Vision and Pattern Recognition - CVPR 08},
keywords = {}
}
|
Boubekeur, Tamy; Schlick, Christophe A Flexible Kernel for Adaptive Mesh Refinement on GPU (Article) Computer Graphics Forum, 27 (1), pp. 102-113, 2008. (Links | BibTeX) @article{Boubekeur:2008:AFK,
title = {A Flexible Kernel for Adaptive Mesh Refinement on GPU},
author = {Tamy Boubekeur and Christophe Schlick},
url = {http://iparla.labri.fr/publications/2008/BS08/},
year = {2008},
date = {2008-01-01},
journal = {Computer Graphics Forum},
volume = {27},
number = {1},
pages = {102-113},
keywords = {}
}
|
Bradley, Derek; Popa, Tiberiu; Sheffer, Alla; Heidrich, Wolfgang; Boubekeur, Tamy Markerless Garment Capture (Article) ACM Transactions on Graphics (Special Issue on SIGGRAPH 2008), 27 (3), pp. 99-108, 2008. (Links | BibTeX) @article{Bradley:2008:MGC,
title = {Markerless Garment Capture},
author = {Derek Bradley and Tiberiu Popa and Alla Sheffer and Wolfgang Heidrich and Tamy Boubekeur},
url = {http://perso.telecom-paristech.fr/~boubek/papers/MGC/},
year = {2008},
date = {2008-01-01},
journal = {ACM Transactions on Graphics (Special Issue on SIGGRAPH 2008)},
volume = {27},
number = {3},
pages = {99-108},
keywords = {}
}
|
Hahne, Uwe; Alexa, Marc Combining Time-Of-Flight Depth and Stereo Images without Accurate Extrinsic Calibration (Article) International Journal of Intelligent Systems Technologies and Applications, 5 (3/4), pp. 325 - 333, 2008, (We combine a low resolution time-of-flight depth image camera based on photonic mixer devices with two standard cameras in a stereo configuration. We show that this approach is useful even without accurate calibration. In a graph cut approach, we use depth information from the low resolution time-of-flight camera to initialize the domain, and color information for accurate depth discontinuities in the high resolution depth image. The system is promising as it is low cost, and naturally extends to the setting of dynamic scenes, providing high frame rates.). (Links | BibTeX) @article{Hahne:2008:CTD,
title = {Combining Time-Of-Flight Depth and Stereo Images without Accurate Extrinsic Calibration},
author = {Uwe Hahne and Marc Alexa},
url = {http://www.inderscience.com/search/index.php?action=record&rec_id=21295},
year = {2008},
date = {2008-01-01},
journal = {International Journal of Intelligent Systems Technologies and Applications},
volume = {5},
number = {3/4},
pages = {325 - 333},
note = {We combine a low resolution time-of-flight depth image camera based on photonic mixer devices with two standard cameras in a stereo configuration. We show that this approach is useful even without accurate calibration. In a graph cut approach, we use depth information from the low resolution time-of-flight camera to initialize the domain, and color information for accurate depth discontinuities in the high resolution depth image. The system is promising as it is low cost, and naturally extends to the setting of dynamic scenes, providing high frame rates.},
keywords = {}
}
|
Alexa, Marc; Boubekeur, Tamy Subdivision Shading (Article) ACM Transactions on Computer Graphics (SIGGRAPH Asia 2008 Proceedings), 27 (5), pp. 142:1–142:4, 2008, ISSN: 0730-0301. (Links | BibTeX) @article{Alexa:2008:SS,
title = {Subdivision Shading},
author = {Marc Alexa and Tamy Boubekeur},
url = {http://perso.telecom-paristech.fr/~boubek/papers/SuSh/},
issn = {0730-0301},
year = {2008},
date = {2008-01-01},
journal = {ACM Transactions on Computer Graphics (SIGGRAPH Asia 2008 Proceedings)},
volume = {27},
number = {5},
pages = {142:1--142:4},
publisher = {ACM Press},
address = {New York, NY, USA},
keywords = {}
}
|
Zimmermann, Johannes; Nealen, Andrew; Alexa, Marc Sketching Contours (Article) Computers & Graphics, 32 (5), pp. 486–499, 2008. (Links | BibTeX) @article{Zimmermann:2008:SC,
title = {Sketching Contours},
author = {Johannes Zimmermann and Andrew Nealen and Marc Alexa},
url = {fileadmin/fg144/Research/Publications/pdf/sc_preprint.pdf},
year = {2008},
date = {2008-01-01},
journal = {Computers & Graphics},
volume = {32},
number = {5},
pages = {486--499},
publisher = {Elsevier},
keywords = {}
}
|
Alexa, Marc; Nealen, Andrew Mesh Editing Based on Discrete Laplace and Poisson Models (Incollection) Braz, José; Ranchordas, Alpesh; Araùjo, Helder; Jorge, Joaquim (Ed.): Advances in Computer Graphics and Computer Vision, pp. 3–28, Springer Berlin Heidelberg, 2008, ISBN: 978-3-540-75272-1. (Links | BibTeX) @incollection{Alexa:2008:MEB,
title = {Mesh Editing Based on Discrete Laplace and Poisson Models},
author = {Marc Alexa and Andrew Nealen},
editor = {José Braz and Alpesh Ranchordas and Helder Araùjo and Joaquim Jorge},
url = {http://www.springerlink.com/content/h64p567787r71hq1/},
isbn = {978-3-540-75272-1},
year = {2008},
date = {2008-01-01},
booktitle = {Advances in Computer Graphics and Computer Vision},
pages = {3--28},
publisher = {Springer Berlin Heidelberg},
keywords = {}
}
|
2007 |
Alexa, Marc Moving Least Square-based Surface Representations (Incollection) Gross, Markus; Pfister, Hanspeter (Ed.): Point-based Graphics, pp. 109–126, Morgan Kaufmann, 2007, ISBN: 978-0-12-370604-1. (BibTeX) @incollection{Alexa:2007:MLS,
title = {Moving Least Square-based Surface Representations},
author = {Marc Alexa},
editor = {Markus Gross and Hanspeter Pfister},
isbn = {978-0-12-370604-1},
year = {2007},
date = {2007-01-01},
booktitle = {Point-based Graphics},
pages = {109--126},
publisher = {Morgan Kaufmann},
keywords = {}
}
|
Zimmermann, Johannes; Nealen, Andrew; Alexa, Marc SilSketch: automated sketch-based editing of surface meshes (Inproceeding) SBIM '07: Proceedings of the 4th Eurographics workshop on Sketch-based interfaces and modeling, pp. 23–30, ACM, New York, NY, USA, 2007, ISBN: 978-1-59593-915-3. (BibTeX) @inproceedings{Zimmermann:2007:SAS,
title = {SilSketch: automated sketch-based editing of surface meshes},
author = {Johannes Zimmermann and Andrew Nealen and Marc Alexa},
isbn = {978-1-59593-915-3},
year = {2007},
date = {2007-01-01},
booktitle = {SBIM '07: Proceedings of the 4th Eurographics workshop on Sketch-based interfaces and modeling},
pages = {23--30},
publisher = {ACM},
address = {New York, NY, USA},
keywords = {}
}
|
Eitz, Mathias; Sorkine, Olga; Alexa, Marc Sketch Based Image Deformation (Inproceeding) Vision, Modeling and Visualization, pp. 135–142, 2007. (Links | BibTeX) @inproceedings{Eitz:2007:SBI,
title = {Sketch Based Image Deformation},
author = {Mathias Eitz and Olga Sorkine and Marc Alexa},
url = {http://user.cs.tu-berlin.de/~eitz/pdf/2007_sbid.pdf},
year = {2007},
date = {2007-01-01},
booktitle = {Vision, Modeling and Visualization},
pages = {135--142},
keywords = {}
}
|
, Proceedings of the Pacific Graphics 2007 Conference (Book) IEEE Press, 2007. (BibTeX) @book{Alexa:PG:2007,
title = {Proceedings of the Pacific Graphics 2007 Conference},
editor = {Marc Alexa and Steven Gortler and Tao Ju},
year = {2007},
date = {2007-01-01},
publisher = {IEEE Press},
keywords = {}
}
|
Sorkine, Olga; Alexa, Marc As-rigid-as-possible Shape Modeling (Inproceeding) Proceedings of the Eurographics Symposium on Geometry Processing 2007, pp. 109–116, Eurographics Association, 2007. (BibTeX) @inproceedings{Sorkine:2007:ARA,
title = {As-rigid-as-possible Shape Modeling},
author = {Olga Sorkine and Marc Alexa},
year = {2007},
date = {2007-01-01},
booktitle = {Proceedings of the Eurographics Symposium on Geometry Processing 2007},
pages = {109--116},
publisher = {Eurographics Association},
keywords = {}
}
|
Alexa, Marc; Igarashi, Takeo; Nealen, Andrew; Sorkine, Olga Fair triangulated surfaces from positional constraints at interactive rates (Inproceeding) Trends in Mathematical Imaging and Surface Processing, pp. 7–9, Mathematisches Forschungszentrum Oberwolfach 2007. (BibTeX) @inproceedings{Alexa:2007:FTS,
title = {Fair triangulated surfaces from positional constraints at interactive rates},
author = {Marc Alexa and Takeo Igarashi and Andrew Nealen and Olga Sorkine},
year = {2007},
date = {2007-01-01},
booktitle = {Trends in Mathematical Imaging and Surface Processing},
number = {3/2007},
pages = {7--9},
organization = {Mathematisches Forschungszentrum Oberwolfach},
series = {Oberwolfach Reports},
keywords = {}
}
|
Nealen, Andrew; Igarashi, Takeo; Sorkine, Olga; Alexa, Marc FiberMesh: designing freeform surfaces with 3D curves (Article) ACM Trans. Graph., 26 (3), pp. 41–49, 2007, ISSN: 0730-0301. (BibTeX) @article{Nealen:2007:FAI,
title = {FiberMesh: designing freeform surfaces with 3D curves},
author = {Andrew Nealen and Takeo Igarashi and Olga Sorkine and Marc Alexa},
issn = {0730-0301},
year = {2007},
date = {2007-01-01},
journal = {ACM Trans. Graph.},
volume = {26},
number = {3},
pages = {41--49},
publisher = {ACM},
address = {New York, NY, USA},
keywords = {}
}
|
Alexa, Marc Extracting the essence from sets of images (Inproceeding) Proceedings of the Eurographics Symposium on Computational Aesthetics 2007, pp. 113–120, 2007. (BibTeX) @inproceedings{Alexa:2007:ETE,
title = {Extracting the essence from sets of images},
author = {Marc Alexa},
year = {2007},
date = {2007-01-01},
booktitle = {Proceedings of the Eurographics Symposium on Computational Aesthetics 2007},
pages = {113--120},
keywords = {}
}
|
2006 |
Nealen, Andrew; Igarashi, Takeo; Sorkine, Olga; Alexa, Marc Laplacian Mesh Optimization (Inproceeding) Proceedings of ACM Graphite 2006, pp. 381–389, ACM Press, 2006. (BibTeX) @inproceedings{Nealen:2006:CRP,
title = {Laplacian Mesh Optimization},
author = {Andrew Nealen and Takeo Igarashi and Olga Sorkine and Marc Alexa},
year = {2006},
date = {2006-01-01},
booktitle = {Proceedings of ACM Graphite 2006},
pages = {381--389},
publisher = {ACM Press},
keywords = {}
}
|
Adamson, Anders; Alexa, Marc Anisotropic Point Set Surfaces (Article) Computer Graphics Forum, 25 (4), pp. 717–724, 2006. (BibTeX) @article{Adamson:2006:APSJ,
title = {Anisotropic Point Set Surfaces},
author = {Anders Adamson and Marc Alexa},
year = {2006},
date = {2006-01-01},
journal = {Computer Graphics Forum},
volume = {25},
number = {4},
pages = {717--724},
publisher = {Blackwell Publishers},
keywords = {}
}
|
Adamson, Anders; Alexa, Marc Point-sampled Cell Complexes (Article) ACM Transactions on Computer Graphics (SIGGRAPH 2006 Proceedings), 25 (3), pp. 671–680, 2006. (BibTeX) @article{Adamson:2006:PSC,
title = {Point-sampled Cell Complexes},
author = {Anders Adamson and Marc Alexa},
year = {2006},
date = {2006-01-01},
journal = {ACM Transactions on Computer Graphics (SIGGRAPH 2006 Proceedings)},
volume = {25},
number = {3},
pages = {671--680},
publisher = {ACM Press},
keywords = {}
}
|
Hildenbrand, Dietmar; Fontijne, Daniel; Wang, Yesheng; Alexa, Marc; Dorst, Leo Competitive runtime performance for inverse kinematics algorithms using conformal geometric algebra (Inproceeding) Proceedings of the Eurographics 2004 Short Presentations, pp. 5–8, Eurographics, 2006. (BibTeX) @inproceedings{Hildenbrand:2006:CRP,
title = {Competitive runtime performance for inverse kinematics algorithms using conformal geometric algebra},
author = {Dietmar Hildenbrand and Daniel Fontijne and Yesheng Wang and Marc Alexa and Leo Dorst},
year = {2006},
date = {2006-01-01},
booktitle = {Proceedings of the Eurographics 2004 Short Presentations},
pages = {5--8},
publisher = {Eurographics},
keywords = {}
}
|
Samozino, Marie; Alexa, Marc; Alliez, Pierre; Yvinec, Mariette Reconstruction with Voronoi Centered Radial Basis Functions (Inproceeding) Proceedings of the Eurographics Symposium on Geometry Processing 2006, pp. 51–60, Eurographics Association, 2006. (BibTeX) @inproceedings{Samozino:2006:RVC,
title = {Reconstruction with Voronoi Centered Radial Basis Functions},
author = {Marie Samozino and Marc Alexa and Pierre Alliez and Mariette Yvinec},
year = {2006},
date = {2006-01-01},
booktitle = {Proceedings of the Eurographics Symposium on Geometry Processing 2006},
pages = {51--60},
publisher = {Eurographics Association},
keywords = {}
}
|
Stoll, Carsten; Alexa, Marc; Seidel, Hans-Peter BSP Shapes (Inproceeding) Proceedings of Shape Modeling International 2006, pp. 42–47, IEEE Computer Society, 2006. (BibTeX) @inproceedings{Stoll:2006:BSP,
title = {BSP Shapes},
author = {Carsten Stoll and Marc Alexa and Hans-Peter Seidel},
year = {2006},
date = {2006-01-01},
booktitle = {Proceedings of Shape Modeling International 2006},
pages = {42--47},
publisher = {IEEE Computer Society},
keywords = {}
}
|
Adamson, Anders; Alexa, Marc Anisotropic Point Set Surfaces (Inproceeding) AFRIGRAPH 2006, pp. 7–14, 2006. (BibTeX) @inproceedings{Adamson:2006:APS,
title = {Anisotropic Point Set Surfaces},
author = {Anders Adamson and Marc Alexa},
year = {2006},
date = {2006-01-01},
booktitle = {AFRIGRAPH 2006},
pages = {7--14},
keywords = {}
}
|
2005 |
, Proceedings of the Eurographics 2005 Conference (Book) Eurographics Association, 2005. (BibTeX) @book{Alexa:2005:EC,
title = {Proceedings of the Eurographics 2005 Conference},
editor = {Marc Alexa and Joe Marks},
year = {2005},
date = {2005-01-01},
publisher = {Eurographics Association},
keywords = {}
}
|
Lipman, Yaron; Sorkine, Olga; Alexa, Marc; Cohen-Or, Daniel; Levin, David; Rössl, Christian; Seidel, Hans-Peter Laplacian Framework for Interactive Mesh Editing (Article) International Journal of Shape Modeling, 11 (1), pp. 43–62, 2005. (BibTeX) @article{Lipman:2005:LFF,
title = {Laplacian Framework for Interactive Mesh Editing},
author = {Yaron Lipman and Olga Sorkine and Marc Alexa and Daniel Cohen-Or and David Levin and Christian Rössl and Hans-Peter Seidel},
year = {2005},
date = {2005-01-01},
journal = {International Journal of Shape Modeling},
volume = {11},
number = {1},
pages = {43--62},
publisher = {World Scientific},
keywords = {}
}
|
Nealen, Andrew; Sorkine, Olga; Alexa, Marc; Cohen-Or, Daniel A Sketch-Based Interface for Detail-Preserving Mesh Editing (Article) ACM Transactions on Computer Graphics (SIGGRAPH 2005 Proceedings), 24 (3), pp. 1142-1147, 2005. (BibTeX) @article{Nealen:2005:ASI,
title = {A Sketch-Based Interface for Detail-Preserving Mesh Editing},
author = {Andrew Nealen and Olga Sorkine and Marc Alexa and Daniel Cohen-Or},
year = {2005},
date = {2005-01-01},
journal = {ACM Transactions on Computer Graphics (SIGGRAPH 2005 Proceedings)},
volume = {24},
number = {3},
pages = {1142-1147},
publisher = {ACM Press},
keywords = {}
}
|
, Proceedings of the ACM/Eurographics Symposium on Point-based Graphics (Proceeding) Eurographics Association, 2005. (BibTeX) @proceedings{Pauly:2005:ESP,
title = {Proceedings of the ACM/Eurographics Symposium on Point-based Graphics},
editor = {Mark Pauly and Matthias Zwicker and Marc Alexa and Szymon Rusinkiewicz},
year = {2005},
date = {2005-01-01},
publisher = {Eurographics Association},
keywords = {}
}
|
Ohtake, Yutaka; Belyaev, Alexander; Alexa, Marc Sparse Low-degree Implicits with Applications to High Quality Rendering (Inproceeding) Desbrun, Mathieu; Pottmann, Helmut (Ed.): Proceedings of the Eurographics Symposium on Geometry Processing 2005, pp. 149–158, Eurographics Association, 2005. (BibTeX) @inproceedings{Ohtake:2005:SLI,
title = {Sparse Low-degree Implicits with Applications to High Quality Rendering},
author = {Yutaka Ohtake and Alexander Belyaev and Marc Alexa},
editor = {Mathieu Desbrun and Helmut Pottmann},
year = {2005},
date = {2005-01-01},
booktitle = {Proceedings of the Eurographics Symposium on Geometry Processing 2005},
pages = {149--158},
publisher = {Eurographics Association},
keywords = {}
}
|
Alexa, Marc Non-conforming surface representations (Inproceeding) Desbrun, Mathieu; Pottmann, Helmut (Ed.): Proceedings of the Eurographics Symposium on Geometry Processing 2005, pp. 83–84, Eurographics Association, 2005, (extended abstract of an invited talk). (BibTeX) @inproceedings{Alexa:2005:NSR,
title = {Non-conforming surface representations},
author = {Marc Alexa},
editor = {Mathieu Desbrun and Helmut Pottmann},
year = {2005},
date = {2005-01-01},
booktitle = {Proceedings of the Eurographics Symposium on Geometry Processing 2005},
pages = {83--84},
publisher = {Eurographics Association},
note = {extended abstract of an invited talk},
keywords = {}
}
|
Reuter, Patrick; Behr, Johannes; Alexa, Marc An Improved Adjacency Data Structure for Fast Triangle Stripping (Article) ACM Journal of Graphics Tools, 10 (2), pp. 41–50, 2005. (BibTeX) @article{Reuter:2005:FS,
title = {An Improved Adjacency Data Structure for Fast Triangle Stripping},
author = {Patrick Reuter and Johannes Behr and Marc Alexa},
year = {2005},
date = {2005-01-01},
journal = {ACM Journal of Graphics Tools},
volume = {10},
number = {2},
pages = {41--50},
publisher = {AK Peters, Ltd.},
keywords = {}
}
|
2004 |
Adamson, Anders; Alexa, Marc; Nealen, Andrew Adaptive Sampling of Intersectable Models Exploiting Image and Object-space Coherence (Inproceeding) Proceedings of 2nd International Symposium on 3D Data Processing, Visualization and Transmission, pp. 76–81, IEEE Press, 2004. (BibTeX) @inproceedings{Adamson:2005:ASO,
title = {Adaptive Sampling of Intersectable Models Exploiting Image and Object-space Coherence},
author = {Anders Adamson and Marc Alexa and Andrew Nealen},
year = {2004},
date = {2004-01-01},
booktitle = {Proceedings of 2nd International Symposium on 3D Data Processing, Visualization and Transmission},
pages = {76--81},
publisher = {IEEE Press},
keywords = {}
}
|
, Proceedings of the Eurographics 2004 Short Presentations & Interactive Demos (Proceeding) Eurographics Association, 2004. (BibTeX) @proceedings{Alexa:2004:ESI,
title = {Proceedings of the Eurographics 2004 Short Presentations & Interactive Demos},
editor = {Marc Alexa and Eric Galin},
year = {2004},
date = {2004-01-01},
publisher = {Eurographics Association},
keywords = {}
}
|
Taponecco, Francesca; Alexa, Marc Steerable Texture Synthesis (Inproceeding) Alexa, Marc; Galin, Eric (Ed.): Proceedings of the Eurographics 2004 Short Presentations & Interactive Demos, pp. 57–60, Eurographics Association, 2004. (BibTeX) @inproceedings{Taponecco:2004:STS,
title = {Steerable Texture Synthesis},
author = {Francesca Taponecco and Marc Alexa},
editor = {Marc Alexa and Eric Galin},
year = {2004},
date = {2004-01-01},
booktitle = {Proceedings of the Eurographics 2004 Short Presentations & Interactive Demos},
pages = {57--60},
publisher = {Eurographics Association},
keywords = {}
}
|
Alexa, Marc Linear Shift-Invariant Operators for Processing Surface Meshes (Inproceeding) Proceedings of 2nd International Symposium on 3D Data Processing, Visualization and Transmission, pp. 76–81, IEEE Press, 2004. (BibTeX) @inproceedings{Alexa:2004:LSI,
title = {Linear Shift-Invariant Operators for Processing Surface Meshes},
author = {Marc Alexa},
year = {2004},
date = {2004-01-01},
booktitle = {Proceedings of 2nd International Symposium on 3D Data Processing, Visualization and Transmission},
pages = {76--81},
publisher = {IEEE Press},
keywords = {}
}
|
Müller, Matthias; Kaiser, Richard; Nealen, Andrew; Pauly, Mark; Gross, Markus; Alexa, Marc Point Based Animation of Elastic, Plastic and Melting Objects (Inproceeding) Boulic, Ronan; Pai, Dinesh (Ed.): Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation 2004, pp. 141–151, 2004. (BibTeX) @inproceedings{Mueller:2004:PBA,
title = {Point Based Animation of Elastic, Plastic and Melting Objects},
author = {Matthias Müller and Richard Kaiser and Andrew Nealen and Mark Pauly and Markus Gross and Marc Alexa},
editor = {Ronan Boulic and Dinesh Pai},
year = {2004},
date = {2004-01-01},
booktitle = {Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation 2004},
pages = {141--151},
keywords = {}
}
|
Sharf, Andrei; Alexa, Marc; Cohen-Or, Daniel Context-based Surface Completion (Article) ACM Transactions on Computer Graphics (SIGGRAPH 2004 Proceedings), 23 (3), pp. 878–887, 2004. (BibTeX) @article{Sharf:2004:CSC,
title = {Context-based Surface Completion},
author = {Andrei Sharf and Marc Alexa and Daniel Cohen-Or},
year = {2004},
date = {2004-01-01},
journal = {ACM Transactions on Computer Graphics (SIGGRAPH 2004 Proceedings)},
volume = {23},
number = {3},
pages = {878--887},
publisher = {ACM Press},
keywords = {}
}
|
Sorkine, Olga; Cohen-Or, Daniel; Lipman, Yaron; Alexa, Marc; Rössl, Christian; Seidel, Hans-Peter Laplacian Surface Editing (Inproceeding) Scopigno, Roberto; Zorin, Denis (Ed.): Proceedings of the Eurographics Symposium on Geometry Processing 2004, pp. 179–188, Eurographics Association, 2004. (BibTeX) @inproceedings{Sorkine:2004:LSE,
title = {Laplacian Surface Editing},
author = {Olga Sorkine and Daniel Cohen-Or and Yaron Lipman and Marc Alexa and Christian Rössl and Hans-Peter Seidel},
editor = {Roberto Scopigno and Denis Zorin},
year = {2004},
date = {2004-01-01},
booktitle = {Proceedings of the Eurographics Symposium on Geometry Processing 2004},
pages = {179--188},
publisher = {Eurographics Association},
keywords = {}
}
|
Nealen, Andrew; Alexa, Marc Fast and High Quality Overlap Repair for Patch-Based Texture Synthesis (Inproceeding) Cohen-Or, Daniel; Jain, Lakhmi; Magnenat-Thalmann, Nadia (Ed.): Proceedings of Computer Graphics International 2004, pp. 582–585, IEEE Press, 2004. (BibTeX) @inproceedings{Nealen:2004:FAH,
title = {Fast and High Quality Overlap Repair for Patch-Based Texture Synthesis},
author = {Andrew Nealen and Marc Alexa},
editor = {Daniel Cohen-Or and Lakhmi Jain and Nadia Magnenat-Thalmann},
year = {2004},
date = {2004-01-01},
booktitle = {Proceedings of Computer Graphics International 2004},
pages = {582--585},
publisher = {IEEE Press},
keywords = {}
}
|
, Proceedings of Eurographics Symposium on Point-based Graphics (Proceeding) Eurographics, 2004. (BibTeX) @proceedings{Alexa:2004:ESP,
title = {Proceedings of Eurographics Symposium on Point-based Graphics},
editor = {Marc Alexa and Markus Gross and Hanspeter Pfister and Szymon Rusinkiewicz},
year = {2004},
date = {2004-01-01},
publisher = {Eurographics},
keywords = {}
}
|
Klug, Tobias; Alexa, Marc Bounding Volumes for Linearly Interpolated Shapes (Inproceeding) Cohen-Or, Daniel; Jain, Lakhmi; Magnenat-Thalmann, Nadia (Ed.): Proceedings of Computer Graphics International 2004, pp. 134–139, IEEE Computer Society, 2004. (BibTeX) @inproceedings{Klug:2004:BVF,
title = {Bounding Volumes for Linearly Interpolated Shapes},
author = {Tobias Klug and Marc Alexa},
editor = {Daniel Cohen-Or and Lakhmi Jain and Nadia Magnenat-Thalmann},
year = {2004},
date = {2004-01-01},
booktitle = {Proceedings of Computer Graphics International 2004},
pages = {134--139},
publisher = {IEEE Computer Society},
keywords = {}
}
|
Adamson, Anders; Alexa, Marc Approximating Bounded, Non-Orientable Surfaces from Points (Inproceeding) Giannini, Franca; Pasko, Alexander (Ed.): Proceedings of Shape Modeling International 2004, pp. 243–252, IEEE Computer Society, 2004. (BibTeX) @inproceedings{Adamson:2004:ABN,
title = {Approximating Bounded, Non-Orientable Surfaces from Points},
author = {Anders Adamson and Marc Alexa},
editor = {Franca Giannini and Alexander Pasko},
year = {2004},
date = {2004-01-01},
booktitle = {Proceedings of Shape Modeling International 2004},
pages = {243--252},
publisher = {IEEE Computer Society},
keywords = {}
}
|
Alexa, Marc; Adamson, Anders On Normals and Projection Operators for Surfaces Defined by Point Sets (Inproceeding) Alexa, Marc; Gross, Markus; Pfister, Hanspeter; Rusinkiewicz, Szymon (Ed.): Proceedings of Eurographics Symposium on Point-based Graphics, pp. 149–156, Eurographics, 2004. (BibTeX) @inproceedings{Alexa:2004:ONA,
title = {On Normals and Projection Operators for Surfaces Defined by Point Sets},
author = {Marc Alexa and Anders Adamson},
editor = {Marc Alexa and Markus Gross and Hanspeter Pfister and Szymon Rusinkiewicz},
year = {2004},
date = {2004-01-01},
booktitle = {Proceedings of Eurographics Symposium on Point-based Graphics},
pages = {149--156},
publisher = {Eurographics},
keywords = {}
}
|
Müller, Wolfgang; Alexa, Marc Visual Component Analysis (Inproceeding) Deussen, Oliver; Hansen, Charles; Keim, Daniel; Saupe, Dietmar (Ed.): Data Visualization 2004, Eurographics/IEEE TVCG Visualization Symposium Proceedings, pp. 129–136, 2004. (BibTeX) @inproceedings{Mueller:2004:VCA,
title = {Visual Component Analysis},
author = {Wolfgang Müller and Marc Alexa},
editor = {Oliver Deussen and Charles Hansen and Daniel Keim and Dietmar Saupe},
year = {2004},
date = {2004-01-01},
booktitle = {Data Visualization 2004, Eurographics/IEEE TVCG Visualization Symposium Proceedings},
pages = {129--136},
keywords = {}
}
|
2003 |
Taponecco, Francesca; Alexa, Marc Vector Field Visualization using Markov Random Field Texture Synthesis (Inproceeding) Bonneau, Georges-Pierre; Hahmann, Stefanie; Hansen, Chuck (Ed.): Data Visualization 2003, pp. 195–202, 2003. (BibTeX) @inproceedings{Taponecco:2003:VFV,
title = {Vector Field Visualization using Markov Random Field Texture Synthesis},
author = {Francesca Taponecco and Marc Alexa},
editor = {Georges-Pierre Bonneau and Stefanie Hahmann and Chuck Hansen},
year = {2003},
date = {2003-01-01},
booktitle = {Data Visualization 2003},
pages = {195--202},
keywords = {}
}
|
Adamson, Anders; Alexa, Marc Approximating and Intersecting Surfaces from Points (Inproceeding) Kobbelt, Leif; Schröder, Peter; Hoppe, Hugues (Ed.): Proceedings of the Eurographics Symposium on Geometry Processing, pp. 245–254, 2003. (BibTeX) @inproceedings{Adamson:2003:AAI,
title = {Approximating and Intersecting Surfaces from Points},
author = {Anders Adamson and Marc Alexa},
editor = {Leif Kobbelt and Peter Schröder and Hugues Hoppe},
year = {2003},
date = {2003-01-01},
booktitle = {Proceedings of the Eurographics Symposium on Geometry Processing},
pages = {245--254},
keywords = {}
}
|
Fleishman, Shachar; Cohen-Or, Daniel; Alexa, Marc; Silva, Claudio Progressive Point Set Surfaces (Article) ACM Transactions on Computer Graphics, 22 (4), pp. 997–1011, 2003. (BibTeX) @article{Fleishman:2003:PPS,
title = {Progressive Point Set Surfaces},
author = {Shachar Fleishman and Daniel Cohen-Or and Marc Alexa and Claudio Silva},
year = {2003},
date = {2003-01-01},
journal = {ACM Transactions on Computer Graphics},
volume = {22},
number = {4},
pages = {997--1011},
publisher = {ACM Press},
keywords = {}
}
|
Nealen, Andrew; Alexa, Marc Hybrid Texture Synthesis (Inproceeding) Christensen, Per.; Cohen-Or, Daniel (Ed.): Proceedings of the Eurographics Symposium on Rendering, pp. 97–105, 2003. (BibTeX) @inproceedings{Nealen:2003:HTS,
title = {Hybrid Texture Synthesis},
author = {Andrew Nealen and Marc Alexa},
editor = {Per. H. Christensen and Daniel Cohen-Or},
year = {2003},
date = {2003-01-01},
booktitle = {Proceedings of the Eurographics Symposium on Rendering},
pages = {97--105},
keywords = {}
}
|
Alexa, Marc Differential Coordinates for Mesh Morphing and Deformation (Article) The Visual Computer, 19 (2), pp. 105–114, 2003. (BibTeX) @article{Alexa:2003:DCF,
title = {Differential Coordinates for Mesh Morphing and Deformation},
author = {Marc Alexa},
year = {2003},
date = {2003-01-01},
journal = {The Visual Computer},
volume = {19},
number = {2},
pages = {105--114},
publisher = {Springer},
keywords = {}
}
|
Ohtake, Yutaka; Belyaev, Alexander; Alexa, Marc; Turk, Greg; Seidel, Hans-Peter Multi-level Partition of Unity Implicits (Article) ACM Transactions on Computer Graphics (SIGGRAPH 2003 Proceedings), 22 (3), pp. 463–470, 2003. (BibTeX) @article{Ohtake:2003:MPO,
title = {Multi-level Partition of Unity Implicits},
author = {Yutaka Ohtake and Alexander Belyaev and Marc Alexa and Greg Turk and Hans-Peter Seidel},
year = {2003},
date = {2003-01-01},
journal = {ACM Transactions on Computer Graphics (SIGGRAPH 2003 Proceedings)},
volume = {22},
number = {3},
pages = {463--470},
publisher = {ACM Press},
keywords = {}
}
|
Adamson, Anders; Alexa, Marc Ray Tracing Point Set Surfaces (Inproceeding) Kim, Myung-Soo (Ed.): Proceedings of Shape Modeling International 2003, pp. 272–279, IEEE Computer Society, 2003. (BibTeX) @inproceedings{Adamson:2003:RTP,
title = {Ray Tracing Point Set Surfaces},
author = {Anders Adamson and Marc Alexa},
editor = {Myung-Soo Kim},
year = {2003},
date = {2003-01-01},
booktitle = {Proceedings of Shape Modeling International 2003},
pages = {272--279},
publisher = {IEEE Computer Society},
keywords = {}
}
|
Alexa, Marc; Behr, Johannes; Cohen-Or, Daniel; Fleishman, Shachar; Levin, David; Silva, Claudio Computing and Rendering Point Set Surfaces (Article) IEEE Transactions on Computer Graphics and Visualization, 9 (1), pp. 3–15, 2003. (BibTeX) @article{Alexa:2003:CAR,
title = {Computing and Rendering Point Set Surfaces},
author = {Marc Alexa and Johannes Behr and Daniel Cohen-Or and Shachar Fleishman and David Levin and Claudio T. Silva},
year = {2003},
date = {2003-01-01},
journal = {IEEE Transactions on Computer Graphics and Visualization},
volume = {9},
number = {1},
pages = {3--15},
keywords = {}
}
|
Alexa, Marc; Klug, Tobias; Stoll, Carsten Direction Fields over Point Sampled Geometry (Article) Journal of WSCG 2003, 11 (1), pp. 27–32, 2003. (BibTeX) @article{Alexa:2003:DFO,
title = {Direction Fields over Point Sampled Geometry},
author = {Marc Alexa and Tobias Klug and Carsten Stoll},
editor = {Vaclav Skala},
year = {2003},
date = {2003-01-01},
journal = {Journal of WSCG 2003},
volume = {11},
number = {1},
pages = {27--32},
keywords = {}
}
|
Alexa, Marc Shape Spaces from Morphing (Invited Paper) (Inproceeding) Cohen-Or, Daniel; Dyn, Nira; Elber, Gershon; Shamir, Arik (Ed.): The 4th Israel-Korea Bi-0National Conference on Geometric Modeling and Computer Graphics -- Conference Proceedings, pp. 147–152, 2003. (BibTeX) @inproceedings{Alexa:2003:SSF,
title = {Shape Spaces from Morphing (Invited Paper)},
author = {Marc Alexa},
editor = {Daniel Cohen-Or and Nira Dyn and Gershon Elber and Arik Shamir},
year = {2003},
date = {2003-01-01},
booktitle = {The 4th Israel-Korea Bi-0National Conference on Geometric Modeling and Computer Graphics -- Conference Proceedings},
pages = {147--152},
keywords = {}
}
|
2002 |
Alexa, Marc; Bartz, Dirk; Klosowski, James Approximate Visual Hulls as Bounding Volumes for Occlusion Culling (Inproceeding) Poster Proceedings of IEEE Visualization, 2002. (BibTeX) @inproceedings{Alexa:2002:AVH,
title = {Approximate Visual Hulls as Bounding Volumes for Occlusion Culling},
author = {Marc Alexa and Dirk Bartz and James T. Klosowski},
year = {2002},
date = {2002-01-01},
booktitle = {Poster Proceedings of IEEE Visualization},
keywords = {}
}
|
Alexa, Marc Refinement Operators for Triangle Meshes (Article) CAGD, 19 (3), pp. 169–172, 2002. (BibTeX) @article{Alexa:2002:ROF,
title = {Refinement Operators for Triangle Meshes},
author = {Marc Alexa},
year = {2002},
date = {2002-01-01},
journal = {CAGD},
volume = {19},
number = {3},
pages = {169--172},
publisher = {Elsevier},
keywords = {}
}
|
Alexa, Marc Wiener Filtering of Meshes (Inproceeding) Proceedings of Shape Modeling International 2002, pp. 51–57, 2002. (BibTeX) @inproceedings{Alexa:2002:WFO,
title = {Wiener Filtering of Meshes},
author = {Marc Alexa},
year = {2002},
date = {2002-01-01},
booktitle = {Proceedings of Shape Modeling International 2002},
pages = {51--57},
keywords = {}
}
|
Alexa, Marc Linear Combination of Transformations (Article) ACM Transactions on Graphics (SIGGRAPH 02 Proceedings), 21 (3), pp. 380–387, 2002. (BibTeX) @article{Alexa:2002:LCO,
title = {Linear Combination of Transformations},
author = {Marc Alexa},
year = {2002},
date = {2002-01-01},
journal = {ACM Transactions on Graphics (SIGGRAPH 02 Proceedings)},
volume = {21},
number = {3},
pages = {380--387},
publisher = {ACM},
keywords = {}
}
|
Alexa, Marc; Behr, Johannes Linear Geometry Interpolation in OpenSG (Inproceeding) Proceedings of OpenSG Symposium 2002, 2002, (Also available as report 02i014-GRIS, Technische Universität Darmstadt). (BibTeX) @inproceedings{Alexa:2002:LGI,
title = {Linear Geometry Interpolation in OpenSG},
author = {Marc Alexa and Johannes Behr},
year = {2002},
date = {2002-01-01},
booktitle = {Proceedings of OpenSG Symposium 2002},
note = {Also available as report 02i014-GRIS, Technische Universität Darmstadt},
keywords = {}
}
|
Alexa, Marc Recent Advances in Mesh Morphing (Article) Computer Graphics Forum, 21 (2), pp. 173–196, 2002. (BibTeX) @article{Alexa:2002:MM,
title = {Recent Advances in Mesh Morphing},
author = {Marc Alexa},
year = {2002},
date = {2002-01-01},
journal = {Computer Graphics Forum},
volume = {21},
number = {2},
pages = {173--196},
publisher = {Blackwell},
keywords = {}
}
|
Behr, Johannes; Alexa, Marc Fast and Effective Striping (Inproceeding) Proceedings of OpenSG Symposium 2002, 2002, (Also available as report 02i015-ZGDV, Zentrum für Graphische Datenverarbeitung). (BibTeX) @inproceedings{Behr:2002:FAE,
title = {Fast and Effective Striping},
author = {Johannes Behr and Marc Alexa},
year = {2002},
date = {2002-01-01},
booktitle = {Proceedings of OpenSG Symposium 2002},
note = {Also available as report 02i015-ZGDV, Zentrum für Graphische Datenverarbeitung},
keywords = {}
}
|
Taponecco, Francesca; Alexa, Marc Scan Conversion of Spirals (Inproceeding) Skala, Vaclav (Ed.): Proceedings of WSCG 2002, pp. 115–120, 2002. (BibTeX) @inproceedings{Taponecco:2002:SCO,
title = {Scan Conversion of Spirals},
author = {Francesca Taponecco and Marc Alexa},
editor = {Vaclav Skala},
year = {2002},
date = {2002-01-01},
booktitle = {Proceedings of WSCG 2002},
pages = {115--120},
keywords = {}
}
|
2001 |
Weber, Marc; Alexa, Marc; Müller, Wolfgang Visualizing Time-Series on Spirals (Inproceeding) IEEE Symposium on Information Visualization 2001, pp. 21–28, 2001, (ISBN 0-7695-1342-5). (BibTeX) @inproceedings{Weber:2001:VTO,
title = {Visualizing Time-Series on Spirals},
author = {Marc Weber and Marc Alexa and Wolfgang Müller},
year = {2001},
date = {2001-01-01},
booktitle = {IEEE Symposium on Information Visualization 2001},
pages = {21--28},
note = {ISBN 0-7695-1342-5},
keywords = {}
}
|
Alexa, Marc; Behr, Johannes; Cohen-Or, Daniel; Fleishman, Shachar; Levin, David; Silva, Claudio Point set surfaces (Inproceeding) IEEE Visualization 2001, pp. 21–28, 2001, (ISBN 0-7803-7200-x). (BibTeX) @inproceedings{Alexa:2001:PSS,
title = {Point set surfaces},
author = {Marc Alexa and Johannes Behr and Daniel Cohen-Or and Shachar Fleishman and David Levin and Claudio T. Silva},
year = {2001},
date = {2001-01-01},
booktitle = {IEEE Visualization 2001},
pages = {21--28},
note = {ISBN 0-7803-7200-x},
keywords = {}
}
|
Alexa, Marc Shape spaces from mesh morphing (Inproceeding) Saupe, Dietmar; Slusallek, Philipp (Ed.): Graphiktag 2001, GI, 2001. (BibTeX) @inproceedings{Alexa:2001:SSF,
title = {Shape spaces from mesh morphing},
author = {Marc Alexa},
editor = {Dietmar Saupe and Philipp Slusallek},
year = {2001},
date = {2001-01-01},
booktitle = {Graphiktag 2001},
publisher = {GI},
keywords = {}
}
|
Alexa, Marc Local control for mesh morphing (Inproceeding) Werner, Bob (Ed.): Proceedings of the International Conference on Shape Modeling and Applications (SMI-01), pp. 209–215, IEEE Computer Society, Los Alamitos, CA, 2001. (BibTeX) @inproceedings{Alexa:2001:LCF,
title = {Local control for mesh morphing},
author = {Marc Alexa},
editor = {Bob Werner},
year = {2001},
date = {2001-01-01},
booktitle = {Proceedings of the International Conference on Shape Modeling and Applications (SMI-01)},
pages = {209--215},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA},
keywords = {}
}
|
Saupe, Dietmar; Alexa, Marc Computer Graphics in Germany (Article) Computer Graphics, 35 (3), pp. 12–19, 2001, (ISSN 0097-8930). (BibTeX) @article{Saupe:2001:CGI,
title = {Computer Graphics in Germany},
author = {Dietmar Saupe and Marc Alexa},
year = {2001},
date = {2001-01-01},
journal = {Computer Graphics},
volume = {35},
number = {3},
pages = {12--19},
publisher = {ACM Press},
note = {ISSN 0097-8930},
keywords = {}
}
|
Alexa, Marc Mesh Morphing STAR (Article) Eurographics 2001 State of The Art Reports, pp. 1–20, 2001, (ISSN 1017-4656). (BibTeX) @article{Alexa:2001:MM,
title = {Mesh Morphing STAR},
author = {Marc Alexa},
year = {2001},
date = {2001-01-01},
journal = {Eurographics 2001 State of The Art Reports},
pages = {1--20},
publisher = {Eurographics},
note = {ISSN 1017-4656},
keywords = {}
}
|
Behr, Johannes; Alexa, Marc Volume Visualization in VRML (Article) Web3D 2001 Conference, pp. 23–28, 2001, (ISBN 1-58113-339-1). (BibTeX) @article{Behr:2001:VVI,
title = {Volume Visualization in VRML},
author = {Johannes Behr and Marc Alexa},
editor = {Michael Capps},
year = {2001},
date = {2001-01-01},
journal = {Web3D 2001 Conference},
pages = {23--28},
note = {ISBN 1-58113-339-1},
keywords = {}
}
|
Müller, Wolfgang; Spierling, Ulrike; Alexa, Marc; Rieger, Thomas Face-to-face with your assistant. Realization issues of animated user interface agents for home appliances (Article) Computers & Graphics, 25 (4), pp. 593–600, 2001, (ISSN 0097-8493). (BibTeX) @article{Mueller:2001:FWY,
title = {Face-to-face with your assistant. Realization issues of animated user interface agents for home appliances},
author = {Wolfgang Müller and Ulrike Spierling and Marc Alexa and Thomas Rieger},
editor = {Thomas Kirste and Heidrun Schumann},
year = {2001},
date = {2001-01-01},
journal = {Computers & Graphics},
volume = {25},
number = {4},
pages = {593--600},
publisher = {Pergamon Press / Elsevier Science},
note = {ISSN 0097-8493},
keywords = {}
}
|
Alexa, Marc; Berner, Uwe; Hellenschmidt, Michael; Rieger, Thomas An Animation System for User Interface Agents (Inproceeding) Skala, (Ed.): WSCG 2001 Conference Proceedings, 2001. (Abstract | BibTeX) @inproceedings{Alexa:2001:AAS,
title = {An Animation System for User Interface Agents},
author = {Marc Alexa and Uwe Berner and Michael Hellenschmidt and Thomas Rieger},
editor = {V. Skala},
year = {2001},
date = {2001-01-01},
booktitle = {WSCG 2001 Conference Proceedings},
abstract = {With the advent of software agents and assistants, the concept of so called conversational user interfaces evolved, incorporating natural language interaction, dialogue management, and anthropomorphic representations. Today's challenge is to build a suitable visualization architecture for anthropomorphic conversational user interfaces, and to design believable and appropriate face-to-face interaction imitating human attributes such as emotions. The system is designed as an autonomous agent enabling easy integration into a variety of scenarios. Architecture, protocols, and graphical output are discussed.},
keywords = {}
}
With the advent of software agents and assistants, the concept of so called conversational user interfaces evolved, incorporating natural language interaction, dialogue management, and anthropomorphic representations. Today's challenge is to build a suitable visualization architecture for anthropomorphic conversational user interfaces, and to design believable and appropriate face-to-face interaction imitating human attributes such as emotions. The system is designed as an autonomous agent enabling easy integration into a variety of scenarios. Architecture, protocols, and graphical output are discussed. |
Alexa, Marc; Cohen-Or, Daniel Editorial --- Special issue on shape blending (Article) Computers and Graphics, 25 (1), pp. 1–2, 2001, ISSN: 0097-8493. (Links | BibTeX) @article{Alexa:2001:ESI,
title = {Editorial --- Special issue on shape blending},
author = {Marc Alexa and Daniel Cohen-Or},
url = {http://www.elsevier.nl/gej-ng/10/13/20/57/26/26/abstract.html; http://www.elsevier.nl/gej-ng/10/13/20/57/26/26/article.pdf},
issn = {0097-8493},
year = {2001},
date = {2001-01-01},
journal = {Computers and Graphics},
volume = {25},
number = {1},
pages = {1--2},
keywords = {}
}
|
2000 |
Alexa, Marc; Müller, Wolfgang Representing Animations by Principal Components (Article) Computer Graphics Forum, 19 (3), pp. 411–418, 2000, (ISSN 1067-7055). (BibTeX) @article{Alexa:2000:RAB,
title = {Representing Animations by Principal Components},
author = {Marc Alexa and Wolfgang Müller},
year = {2000},
date = {2000-01-01},
journal = {Computer Graphics Forum},
volume = {19},
number = {3},
pages = {411--418},
publisher = {Blackwell Publishers},
note = {ISSN 1067-7055},
keywords = {}
}
|
Alexa, Marc; Cohen-Or, Daniel; Levin, David As-Rigid-As-Possible Shape Interpolation (Article) Proceedings of SIGGRAPH 2000, pp. 157–164, 2000, (ISBN 1-58113-208-5). (BibTeX) @article{Alexa:2000:ASI,
title = {As-Rigid-As-Possible Shape Interpolation},
author = {Marc Alexa and Daniel Cohen-Or and David Levin},
editor = {Kurt Akeley},
year = {2000},
date = {2000-01-01},
journal = {Proceedings of SIGGRAPH 2000},
pages = {157--164},
publisher = {ACM Press / ACM SIGGRAPH / Addison Wesley Longman},
series = {Computer Graphics Proceedings, Annual Conference Series},
note = {ISBN 1-58113-208-5},
keywords = {}
}
|
Müller, Wolfgang; Spierling, Ulrike; Alexa, Marc; Rieger, Thomas Face-to-face with your assistant. Realization issues of animated user interface agents for home appliances (Inproceeding) Heuer, Andreas; Kirste, Thomas (Ed.): IMC 2000. Intelligent Interactive Assistance & Mobile Multimedia Computing. Proceedings, pp. 77–84, Neuer Hochschulschriftenverlag, Rostock, 2000. (BibTeX) @inproceedings{Mueller:2000:FWY,
title = {Face-to-face with your assistant. Realization issues of animated user interface agents for home appliances},
author = {Wolfgang Müller and Ulrike Spierling and Marc Alexa and Thomas Rieger},
editor = {Andreas Heuer and Thomas Kirste},
year = {2000},
date = {2000-01-01},
booktitle = {IMC 2000. Intelligent Interactive Assistance & Mobile Multimedia Computing. Proceedings},
pages = {77--84},
publisher = {Neuer Hochschulschriftenverlag, Rostock},
keywords = {}
}
|
Müller, Wolfgang; Alexa, Marc; Rieger, Thomas; Braun, Norbert Ein flexibles Präsentationssystem für User-Interface-Agenten (Inproceeding) Spierling, Ulrike (Ed.): Workshop Digital Storytelling (DISTEL), pp. 163–175, Fraunhofer IRB Verlag, Stuttgart, 2000, (ISBN 3-8167-5566-6). (BibTeX) @inproceedings{Mueller:2000:EFP,
title = {Ein flexibles Präsentationssystem für User-Interface-Agenten},
author = {Wolfgang Müller and Marc Alexa and Thomas Rieger and Norbert Braun},
editor = {Ulrike Spierling},
year = {2000},
date = {2000-01-01},
booktitle = {Workshop Digital Storytelling (DISTEL)},
pages = {163--175},
publisher = {Fraunhofer IRB Verlag, Stuttgart},
note = {ISBN 3-8167-5566-6},
keywords = {}
}
|
Alexa, Marc; Behr, Johannes; Müller, Wolfgang The Morph Node (Inproceeding) Spencer, Stephen (Ed.): Web3D - VRML 2000 Proceedings, pp. 29–34, ACM Press, 2000, (ISBN 1-58113-211-5). (BibTeX) @inproceedings{Alexa:2000:TMN,
title = {The Morph Node},
author = {Marc Alexa and Johannes Behr and Wolfgang Müller},
editor = {Stephen N. Spencer},
year = {2000},
date = {2000-01-01},
booktitle = {Web3D - VRML 2000 Proceedings},
pages = {29--34},
publisher = {ACM Press},
note = {ISBN 1-58113-211-5},
keywords = {}
}
|
Müller, Wolfgang; Spierling, Ulrike; Alexa, Marc; Iurgel, Ido Design Issues for Conversational User Interfaces: Animating and Controlling 3D Faces (Inproceeding) Avatars 2000, pp. 115–125, 2000. (BibTeX) @inproceedings{Mueller:2000:DIF,
title = {Design Issues for Conversational User Interfaces: Animating and Controlling 3D Faces},
author = {Wolfgang Müller and Ulrike Spierling and Marc Alexa and Ido Iurgel},
year = {2000},
date = {2000-01-01},
booktitle = {Avatars 2000},
pages = {115--125},
keywords = {}
}
|
Alexa, Marc Merging polyhedral shapes with scattered features (Article) The Visual Computer, 16 (1), pp. 26–37, 2000, (ISSN 0178-2789). (BibTeX) @article{Alexa:2000:MPS,
title = {Merging polyhedral shapes with scattered features},
author = {Marc Alexa},
year = {2000},
date = {2000-01-01},
journal = {The Visual Computer},
volume = {16},
number = {1},
pages = {26--37},
note = {ISSN 0178-2789},
keywords = {}
}
|
1999 |
Alexa, Marc Polyhedral Morphing (Techreport) Technische Universität Darmstadt 1999. (BibTeX) @techreport{Alexa:1999:PM,
title = {Polyhedral Morphing},
author = {Marc Alexa},
year = {1999},
date = {1999-01-01},
institution = {Technische Universität Darmstadt},
keywords = {}
}
|
Alexa, Marc; Müller, Wolfgang Visualization by Examples: Mapping Data to Visual Representations Using Few Correspondences (Inproceeding) Data Visualization '99, pp. 23–32, Springer/EG, 1999. (BibTeX) @inproceedings{Alexa:1999:VBE,
title = {Visualization by Examples: Mapping Data to Visual Representations Using Few Correspondences},
author = {Marc Alexa and Wolfgang Müller},
year = {1999},
date = {1999-01-01},
booktitle = {Data Visualization '99},
pages = {23--32},
publisher = {Springer/EG},
keywords = {}
}
|
Alexa, Marc; Müller, Wolfgang The Morphing Space (Article) Seventh International Conference in Central Europe on Computer Graphics and Visualization (Winter School on Computer Graphics), pp. 329–336, 1999, (ISBN 80-7082-490-5. Held in University of West Bohemia, Plzen, Czech Republic, 10-14 February 1999.). (BibTeX) @article{Alexa:1999:TMS,
title = {The Morphing Space},
author = {Marc Alexa and Wolfgang Müller},
year = {1999},
date = {1999-01-01},
journal = {Seventh International Conference in Central Europe on Computer Graphics and Visualization (Winter School on Computer Graphics)},
pages = {329--336},
note = {ISBN 80-7082-490-5. Held in University of West Bohemia, Plzen, Czech Republic, 10-14 February 1999.},
keywords = {}
}
|
Alexa, Marc Merging polyhedral shapes with scattered features (Inproceeding) Werner, Bob (Ed.): Proceedings of the International Conference on Shape Modeling and Applications (SMI-99), pp. 202–210, IEEE Computer Society, Los Alamitos, CA, 1999. (BibTeX) @inproceedings{Alexa:1999:MPS,
title = {Merging polyhedral shapes with scattered features},
author = {Marc Alexa},
editor = {Bob Werner},
year = {1999},
date = {1999-01-01},
booktitle = {Proceedings of the International Conference on Shape Modeling and Applications (SMI-99)},
pages = {202--210},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA},
keywords = {}
}
|
1998 |
Alexa, Marc; Müller, Wolfgang The Morphing Space (Techreport) Technische Universität Darmstadt 1998. (BibTeX) @techreport{Alexa:1998:TMS,
title = {The Morphing Space},
author = {Marc Alexa and Wolfgang Müller},
year = {1998},
date = {1998-01-01},
institution = {Technische Universität Darmstadt},
keywords = {}
}
|
Alexa, Marc; Müller, Wolfgang Visualization by Metamorphosis (Article) Visualization '98 Late Breaking Hot Topics Proceedings, pp. 33–36, 1998. (BibTeX) @article{Alexa:1998:VBM,
title = {Visualization by Metamorphosis},
author = {Marc Alexa and Wolfgang Müller},
year = {1998},
date = {1998-01-01},
journal = {Visualization '98 Late Breaking Hot Topics Proceedings},
pages = {33--36},
keywords = {}
}
|
Müller, Wolfgang; Alexa, Marc Using Morphing for Information Visualization (Article) Workshop on New Paradigms in Information Visualization and Manipulation (NPIV '98), pp. 76–79, 1998. (BibTeX) @article{Mueller:1998:UMF,
title = {Using Morphing for Information Visualization},
author = {Wolfgang Müller and Marc Alexa},
year = {1998},
date = {1998-01-01},
journal = {Workshop on New Paradigms in Information Visualization and Manipulation (NPIV '98)},
pages = {76--79},
publisher = {ACM Press},
keywords = {}
}
|
1996 |
Alexa, Marc; Gerfelder, Norbert; Grimm, Paul; Seiler, Christian AVWoD-Concept and Realization of Internet-Based Media Integration (Inproceeding) Workshop Real Time Multimedia and the Web 1996, pp. 1–7, 1996. (BibTeX) @inproceedings{Alexa:1996:ACA,
title = {AVWoD-Concept and Realization of Internet-Based Media Integration},
author = {Marc Alexa and Norbert Gerfelder and Paul Grimm and Christian Seiler},
year = {1996},
date = {1996-01-01},
booktitle = {Workshop Real Time Multimedia and the Web 1996},
volume = {14},
pages = {1--7},
keywords = {}
}
|
