Mathematics of Information Technology and Complex Systems


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  1. Refereed Contributions

    (2011)

         
    106 GeoBrush: Interactive Mesh Geometry Cloning. 
    Kenshi Takayama, Ryan Schmidt, Karan SinghTakeo IgarashiTamy BoubekeurOlga Sorkine.
    Eurographics 2011 / Computer Graphics Forum (To Appear)
    [PDF] [Video] [Details, Slides, Demo, Source Code]
    105 Andrea Tagliassachi, Matt Olson, Hao Zhang, Ghassan Hamarneh, and Daniel Cohen-Or, "VASE: Volume-Aware Surface Evolution for Surface Reconstruction from Incomplete Point Clouds," Computer Graphics Forum (Proceedings of Symposium on Geometry Processing 2011), in press, 2011. [PDF | bibtex
    104 Kai Xu, Hanlin Zheng, Hao Zhang, Daniel Cohen-Or, Ligang Liu, and Yueshan Xiong, "Photo-Inspired Model-Driven 3D Object Modeling," ACM Trans. on Graphics (Proceedings of SIGGRAPH 2011), in press, 2011. [PDF | bibtex
    103 Matt Olson, Ramsay Dyer, Hao Zhang, and Alla Sheffer, "Point Set Silhouettes via Local Reconstruction," Computer & Graphics (Special Issue of SMI 2011), to appear, 2011. [PDF (4MB) | bibtex
    102 Yanzhen Wang, Kai Xu, Jun Li, Hao Zhang, Ariel Shamir, Ligang Liu, Zhiquan Cheng, and Yueshan Xiong, "Symmetry Hierarchy of Man-Made Objects," Computer Graphics Forum (Special Issue of Eurographics 2011), to appear, 2011. [PDF (14MB) | PDF reduced (500K) | Project page | bibtex
    101  Oliver van Kaick, Andrea Tagliasacchi, Oana Sidi, Hao Zhang, Daniel Cohen-Or, Lior Wolf, and Ghassan Hamarneh, "Prior Knowledge for Part Correspondence," Computer Graphics Forum (Special Issue of Eurographics 2011), conditionally accepted, 2011. [PDF (10 MB) | PDF reduced | bibtex
    100 Oliver van Kaick, Hao Zhang, Ghassan Hamarneh, Daniel Cohen-Or, "A Survey on Shape Correspondence," Computer Graphics Forum (extended version of Eurographics STAR), in press, 2011. [PDF | bibtex
         
    (2010)    
         
    99 meshmixer: an interface for rapid mesh composition (2010). 
    Ryan Schmidt, Karan Singh.
    ACM SIGGRAPH 2010 - Talks Program
    [PDF] [Video] [Project] [Program] [ACM DL]
    98 Flexible Isosurfaces: Simplifying and Displaying Scalar Topology Using the Contour Tree 
    Hamish Carr, Jack Snoeyink, Michiel van de Panne
    Computational Geometry, 43(1), 2010, p. 42-58
    97

    High Resolution Passive Facial Performance Capture        PDF    MP4

    D. BRADLEY, W. HEIDRICH, T. POPA, A. SHEFFER

    ACM Transactions on Graphics (Proceedings of SIGGRAPH). 2010. (Los Angeles, USA).

     

    96

    Globally Consistent Space Time Reconstruction        PDF    MOV

    T. POPA, I. SOUTH-DICKINSON, D. BRADLEY, A. SHEFFER, W. HEIDRICH

    Computer Graphics Forum (Proceedings of Eurographics Symposium on Geometry Processing). 2010. (Lyon, France).

     

    95  Visibility of noisy point cloud data 
    Ravish Mehra, Pushkar Tripathi, Alla Sheffer, Niloy J. Mitra 
    Shape Modeling International 2010 (Invited to special issue of Computers & Graphics - Elsevier) 
    Image 94 Learning 3D Mesh Segmentation and Labeling [PAPER] [PAGE]
    E. Kalogerakis, A. Hertzmann, K. Singh
    ACM Transactions on Graphics, Vol. 29, No. 3, July 2010 
    (also presented in Siggraph 2010, Los Angeles, USA, July 2010)
    93  Kai Xu, Honghua Li, Hao Zhang, Daniel Cohen-Or, Yueshan Xiong, and Zhiquan Cheng, "Style-Content Separation by Anisotropic Part Scales," ACM Trans. on Graphics (Proceeding of SIGGRAPH Asia 2010), Volume 29, Number 5, to appear, 2010. [PDF | Project page | bibtex]

    We perform co-analysis of a set of man-made 3D objects to allow the creation of novel instances derived from the set. We analyze the objects at the part level and treat the anisotropic part scales as a shape style. The co-analysis then allows style transfer to synthesize new objects. The key to co-analysis is part correspondence, where a major challenge is the handling of large style variations and diverse geometric content in the shape set. We propose style-content separation as a means to address this challenge ...

     

    92  Shy Shalom, Ariel Shamir, Hao Zhang, and Daniel Cohen-Or, "Cone Carving for Surface Reconstruction," ACM Trans. on Graphics (Proceeding of SIGGRAPH Asia 2010), Volume 29, Number 5, to appear, 2010. [PDF | bibtex]

    We present cone carving, a novel space carving technique towards topologically correct surface reconstruction from an incomplete scanned point cloud. The technique utilizes the point samples not only for local surface position estimation but also to obtain global visibility information under the assumption that each acquired point is visible from a point laying outside the shape. This enables associating each point with a generalized cone, called the visibility cone, that carves a portion of the outside ambient space of the shape from the inside out.

     

    91  Yotam Livny, Feilong Yan, Matt Olson, Baoquan Chen, Hao Zhang, and Jihad El-Sana, "Automatic Reconstruction of Tree Skeletal Structures from Point Clouds," ACM Trans. on Graphics (Proceeding of SIGGRAPH Asia 2010), Volume 29, Number 5, to appear, 2010. [PDF | bibtex]

    In this paper, we perform active laser scanning of real world vegetation and present an automatic approach that robustly reconstructs skeletal structures of trees, from which full geometry can be generated. The core of our method is a series of {\it global optimizations} that fit skeletal structures to the often sparse, incomplete, and noisy point data. A significant benefit of our approach is its ability to reconstruct multiple overlapping trees simultaneously without segmentation.

     

    90  Liangliang Nan, Andrei Sharf, Hao Zhang, Daniel Cohen-Or, and Baoquan Chen, "SmartBoxes for Interactive Urban Reconstruction," ACM Trans. on Graphics (Proceeding of SIGGRAPH 2010), Volume 29, Number 4, Article 93, 2010. [PDF | Highres PDF (17MB) | Project page | bibtex]

    We introduce an interactive tool which enables a user to quickly assemble an architectural model directly over a 3D point cloud acquired from large-scale scanning of an urban scene. The user loosely defines and manipulates simple building blocks, which we call SmartBoxes, over the point samples. These boxes quickly snap to their proper locations to conform to common architectural structures. The key idea is that the building blocks are smart ...

    89  Lior Shapira, Shy Shalom, Ariel Shamir, Daniel Cohen-Or, and Hao Zhang, "Contextual Part Analogies in 3D Objects," International Journal of Computer Vision, Vol. 89, No. 1-2, pp. 309-326, 2010. [PDF | bibtex]

    We address the problem of finding analogies between parts of 3D objects. By partitioning an object into meaningful parts and finding analogous parts in other objects, not necessarily of the same type, based on a contextual signature, many analysis and modeling tasks could be enhanced ...

     

    88  Joe Kahlert, Matt Olson, and Hao Zhang, "Width-Bounded Geodesic Strips for Surface Tiling," The Visual Computer, to appear, 2010. [PDF | bibtex]

    We present an algorithm for computing families of geodesic curves over an open mesh patch to partition the patch into strip-like segments. Specifically, the segments can be well approximated using strips obtained by trimming long, rectangular pieces of material possessing a prescribed width. We call this width-bounded geodesic strip tiling of a curved surface, a problem with practical applications such as the surfacing of curved roofs.

     

    87  Junjie Cao, Andrea Tagliasacchi, Matt Olson, Hao Zhang, and Zhixun Su, "Point Cloud Skeletons via Laplacian-Based Contraction," Proc. of IEEE Shape Modeling International, pp. 187-197, 2010. [PDF | PPT slides (7MB) | Project and code page | bibtex]

    We present an algorithm for curve skeleton extraction via Laplacian-based contraction. Our algorithm can be applied to surfaces with boundaries, polygon soups, and point clouds. We develop a contraction operation that is designed to work on generalized discrete geometry data, particularly point clouds, via local Delaunay triangulation and topological thinning ...

    86  Hao Zhang, Oliver van Kaick, and Ramsay Dyer, "Spectral Mesh Processing," (revised and extended version of Eurographics 2007 STAR report) Computer Graphics Forum, to appear, September 2010. [PDF | bibtex]

    We provide the first comprehensive survey on spectral mesh processing. Spectral methods for mesh processing and analysis rely on eigenvalues, eigenvectors, or eigenspace projections derived from appropriately defined mesh operators to carry out desired tasks ...

     

    85  Oliver van Kaick, Aaron Ward, Ghassan Hamarneh, Mark Schweitzer, and Hao Zhang, "Learning Fourier Descriptors for Computer-Aided Diagnosis of the Supraspinatus,"Academic Radiology, to appear, 2010. [PDF | bibtex]

    Supraspinatus muscle disorders are frequent and debilitating, resulting in pain and a limited range of shoulder motion. The gold standard for diagnosis involves an invasive surgical procedure ... we present a method to classify 3D shapes of the muscle into the relevant pathology groups, based on MRIs. The method learns the Fourier coefficients that best distinguish the different classes ...

    84  Oliver van Kaick, Hao Zhang, Ghassan Hamarneh, Daniel Cohen-Or, "A Survey on Shape Correspondence," Eurographics 2010 State-of-the-Art Report, TBA. [PDF | PPT slides |bibtex]

     

    We present a review of the correspondence problem targeted towards the computer graphics audience. This survey is motivated by recent developments such as advances in the correspondence of non-rigid or isometric shapes and methods that extract semantic information from the shapes ...

     

    83  Qian Zheng, Andrei Sharf, Andrea Tagliasacchi, Baoquan Chen, Hao Zhang, Alla Sheffer, Daniel Cohen-Or, "Consensus Skeleton for Non-Rigid Space-Time Registration,"Computer Graphics Forum (Proceeding of Eurographics 2010), Volume 29, Number 2, pp. 635-644, 2010. [PDF | Slides | bibtex]

     

    We introduce the notion of consensus skeletons for non-rigid space-time registration of a deforming shape. Instead of basing the registration on point features, which are local and sensitive to noise, we adopt the curve skeleton of the shape as a global and descriptive feature for the task. Our method uses no template and only assumes that the skeletal structure of the captured shape remains largely consistent over time ...

       
    (2009)  
             
             
      82   Seok-Hyung Bae, Ravin Balakrishnan, and Karan Singh, "EverybodyLovesSketch: 3D Sketching for a Broader Audience," The Proceedings of ACM Symposium on User Interface Software and Technology 2009 (Victoria, BC, Canada, October 4-7, 2009), pp. 59-68 [pdf][video][project]
    abstraction_sigA_09   81  

    Abstraction of Man-Made Shapes. Ravish Mehra, Qingnan Zhou, Jeremy Long, Alla Sheffer, Amy Gooch, Niloy J. Mitra 
    ACM 
    SIGGRAPH Asia 2009 [pdf][slides][webpage]

     

      80   Analytic Drawing of 3D Scaffolds (2009)
    Ryan Schmidt, Azam Khan, Karan Singh, Gord Kurtenbach. 
    ACM TOG, 28(5) (Proc. SIGGRAPH ASIA 2009) (To Appear)
    [PDF] [Slides] [Video] [Details]
    Dog Image   79   On Expert Performance in 3D Curve-Drawing Tasks (2009)
    Ryan Schmidt, Azam Khan, Gord Kurtenbach, Karan Singh. 
    Eurographics Symposium on Sketch-Based Interfaces and Modeling 2009 (Best Paper). 
    [PDF] [Slides] [Details]
    Image   78   Multi-objective shape segmentation and labeling [PAPER] [VIDEO]
    P. Simari, D. Nowrouzezahrai, E. Kalogerakis, K. Singh
    Special Issue of the Computer Graphics Forum, Vol. 28, No. 5, August 2009
    (also presented in Eurographics Symposium of Geometry Processing 2009, Berlin, Germany, July 15-17)

     
      77    Kai Xu, Hao Zhang, Andrea Tagliasacchi, Ligang Liu, Guo Li, Min Meng, and Yueshan Xiong, "Partial Intrinsic Reflectional Symmetry of 3D Shapes," ACM Trans. on Graphics (Proceeding of SIGGRAPH Asia 2009), Article 138. [PDF (16 MB) | PDF (reduced size: 7 MB) | Project page | Slides (15 MB) | bibtex]
      76    Hui Huang, Dan Li, Hao Zhang, Uri Ascher, and Daniel Cohen-Or, "Consolidation of Unorganized Point Clouds for Surface Reconstruction," ACM Trans. on Graphics (Proceeding of SIGGRAPH Asia 2009), Article 176. [PDF (8 MB) | PDF (reduced size: 2 MB) | Slides (7 MB) | Project page with source code | bibtex]
      75   Kai Xu, Daniel Cohen-Or, Tao Ju, Ligang Liu, Hao Zhang, Shizhe Zhou, and Yueshan Xiong, "Feature-Aligned Shape Texturing," ACM Trans. on Graphics (Proceeding of SIGGRAPH Asia 2009), Article 108. [PDF (20 MB) | PDF (reduced size: 10 MB) | Slides (19 MB) | Project page | Source Code | bibtex]
      74   Lior Shapira, Shy Shalom, Ariel Shamir, Daniel Cohen-Or, and Hao Zhang, "Contextual Part Analogies in 3D Objects," International Journal of Computer Vision (Spectial Issue on 3D Object Retrieval), 2009, DOI 10.1007/s11263-009-0279-0. [PDF | bibtex]
      73   Ramsay Dyer, Hao Zhang, and Torsten Moeller, "Gabriel meshes and Delaunay edge flips," Proc. of SIAM/ACM Joint Conf. on Geometric and Physical Modeling (GPM), to appear as poster paper, 2009. [PDF | extended version with more proofs | bibtex]
      72    Andrea Tagliasacchi, Hao Zhang, and Daniel Cohen-Or, "Curve Skeleton Extraction from Incomplete Point Cloud," ACM Trans. on Graphics (Proceeding of SIGGRAPH 2009), Volume 28, Number 3, Article 71, 9 pages, DOI = 10.1145/1531326.1531377. [PDF | Project page | bibtex]
      71   Kai Xu, Hao Zhang, Daniel Cohen-Or, and Yueshan Xiong, "Dynamic Harmonic Fields for Surface Processing," Computers and Graphics (Special Issue of Shape Modeling International 2009), Vol. 33, pp. 391-398, 2009. [PDF | Video | bibtex]
      70   Xiaoxing Li, Tao Jia, and Hao Zhang, "Expression-Insensitive 3D Face Recognition using Sparse Representation," IEEE CS Conf. on Computer Vision and Pattern Recognition (CVPR 2009), to appear. [PDF | bibtex]
      69   Hao Zhang, Oliver van Kaick, and Ramsay Dyer, "Spectral Mesh Processing," (revised and extended version of Eurographics 2007 STAR report) Computer Graphics Forum, to appear. [PDF | bibtex]
      68   3. Kai Xu, Zhiquan Cheng, Yanzhen Wang, Yueshan Xiong, and Hao Zhang, "Quality Encoding for Tetrahedral Mesh Optimization," Computers and Graphics (Special Issue of Shape Modeling International 2009), Vol. 33, pp. 250-261, 2009. [PDF | bibtex ]
      67   Rong Liu, Hao Zhang, Ariel Shamir, and Daniel Cohen-Or, "A Part-Aware Surface Metric for Shape Analysis," Computer Graphics Forum (Special Issue of Eurographics 2009), Vol. 28, No. 2, 397-406, 2009. [PDF | bibtex]

     

      66   Matt Olson and Hao Zhang, "Tangential Distance Field for Mesh Silhouette Analysis,," Computer Graphics Forum, Vol. 28, No. 1, pp. 84-100, 2009. [PDF | bibtex]
      65   Extracting lines of curvature from noisy point clouds.
    Evangelos Kalogerakis, Derek Nowrouzezahrai, Patricio Simari, Karan Singh
    Computer-Aided Design 2009. (to appear).

    [pdf]

     

      64  
    Data-driven curvature for real-time line drawing of dynamic scenes.
    Evangelos Kalogerakis, Derek Nowrouzezahrai, Patricio Simari, James McCrae, Aaron Hertzmann, Karan Singh.
    ACM Transactions on Graphics journal, Volume 28, Issue 1, January 2009, To be also presented in SIGGRAPH 2009, New Orleans.

    [pdf][video]

     

             
    (2008)        
             
      63   ILoveSketch: As-natural-as-possible sketching system for creating 3D curve models.

    Seok-Hyung Bae, Ravin Balakrishnan, and Karan Singh,  ACM Symposium on User Interface Software and Technology 2008 (Monterey, CA, USA, October 19-22, 2008).

    [project][pdf][video]

         62   D. Bradley, T. Popa, A. Sheffer, W. Heidrich, T. Boubekeur, Markerless Garment Capture, ACM Transaction on Graphics (Proc. SIGGRAPH 2008), 27(3), 2008.
      61   Ramsay Dyer, Hao Zhang, and Torsten Moeller, "Surface sampling and the intrinsic Voronoi diagram," Computer Graphics Forum (Special Issue of Symposium of Geometry Processing 2008), Volume 27, Number 5, pp. 1393-1402, 2008. (won Best Paper Award at SGP) [PDF | Talk Slides | bibtex]

     

      60   H. Fu, D. Cohen-Or, G. Dror, A. Sheffer, Upright Orientation of Man-Made Objects, ACM Transaction on Graphics (Proc. SIGGRAPH 2008), 27(3), 200

     

      59   M. Kilian, S. Floery, Z. Chen, N. J. Mitra, A. Sheffer, H. Pottmann, Curved Folding, ACM Transaction on Graphics (Proc. SIGGRAPH 2008), 27(3), 2008.

      58   V. Kraevoy, A. Sheffer, D. Cohen-Or, A. Shamir, Non-homogeneous Resizing of Complex Models, ACM Transactions on Graphics (SIGGRAPH ASIA Conference Proceedings), 27, December 2008.
      57   Rong Liu, Hao Zhang, and James Busby "Convex Hull Covering of Polygonal Scenes for Accurate Collision Detection in Games," Proc. of Graphics Interface 2008, pp. 203-210. [PDF | PDF Talk Slides | bibtex]
      56   Matt Olson and Hao Zhang, "Tangential Distance Field for Mesh Silhouette Analysis,," Computer Graphics Forum, to appear, 2008. [PDF | bibtex ]
      55   Tao Ju, Qian-Yi Zhou, Michiel van de Panne, Danny Cohen-Or, Ulrich Neumann. Reusable Skinning Templates Using Cage-based Deformations  ACM Transactions on Graphics (Proc. ACM SIGGRAPH ASIA 2008).
      54   A. Sharf, D. Alcantara, T. Lewiner, C. Greif, A. Sheffer, N. Amenta, D. Cohen-Or, Space-time Surface Reconstruction using Incompressible Flow,  ACM Transactions on Graphics (SIGGRAPH ASIA Conference Proceedings), 27, December 2008.
      53   E. Kalogerakis, P. Simari, D. Nowrouzezahrai, J. McCrae, A. Hertzmann, K. Singh. Real time line drawing for animated surfaces. (8 pages) ACM SIGGRAPH Transactions on Graphics 2008 (to appear).
      52   Hao Zhang, Alla Sheffer, Daniel Cohen-Or, Qingnan Zhou, Oliver van Kaick, and Andrea Tagliasacchi, "Deformation-Drive Shape Correspondence," Computer Graphics Forum (Special Issue of Symposium of Geometry Processing 2008), Volume 27, Number 5, pp. 1431-1439, 2008. [PDF | Talk Slides | bibtex | Project page (UBC)
      51   Hao Zhang, Oliver van Kaick, and Ramsay Dyer, "Spectral Mesh Processing," (revised and extended version of Eurographics 2007 STAR report) Computer Graphics Forum, accepted with minor revision. [PDF | bibtex]
      50   J. McCrae, K. Singh. Sketching piecewise clothoid splines. (8 pages) Eurographics, Sketch based interfaces and modeling SBIM 2008 Best Paper Award.

    [project][paper]

      49   Sketch-Based Procedural Surface Modeling and Compositing with Surface Trees (2008)
    Ryan Schmidt, Karan Singh.
    Proceedings of Eurographics 2008 / Computer Graphics Forum (To Appear)
    [PDF] [Video] [Details]
    Dog Image
      48   Sketching and Composing Widgets for 3D Manipulation (2008)
    Ryan Schmidt, Karan Singh, Ravin Balakrishnan.
    Proceedings of Eurographics 2008 / Computer Graphics Forum (To Appear)
    [PDF] [Video] [Details]
             
    (2007)        
      47   Oliver van Kaick, Ghassan Hamarneh, Hao Zhang, and Paul Wighton "Contour Correspondence via Ant Colony Optimization," Proc. of Pacific Graphics 2007, pp. 271-280. [PDF | PDF Talk Slides | bibtex]
      46   Ramsay Dyer, Hao Zhang, and Torsten Moeller, "Delaunay Mesh Construction," Proc. of Eurographics Symposium on Geometry Processing (SGP) 2007, pp. 273-282. [PDF | PDF Talk Slides | bibtex]
      45   Hao Zhang, Oliver van Kaick, and Ramsay Dyer, "Spectral Methods for Mesh Processing and Analysis," Proc. of Eurographics 2007 State of the Art Report, pp. 1-22. [PDF | PDF Talk Slides | bibtex]
      44   Rong Liu and Hao Zhang, "Mesh Segmentation via Spectral Embedding and Contour Analysis," Computer Graphics Forum (Special Issue of Eurographics 2007), Vol. 26, pp. 385-394. [PDF | PDF Talk Slides | bibtex]
      43   Ramsay Dyer, Hao Zhang, and Torsten Moeller, "Voronoi-Delaunay Duality and Delaunay Meshes," Proc. of ACM Symposium on Solid and Physical Modeling (SPM) 2007, pp. 415-420. [PDF | bibtex]
      42   Ryan Schmidt, Tobias Isenberg, Pauline Jepp, Karan Singh, Brian Wyvill. Sketching, Scaffolding, and Inking: A Visual History for Interactive 3D Modeling. Proceedings of NPAR 2007. [PDF] [Details]  
      41  

    Alexis Angelidis, K. Singh. Kinodynamic skinning using volume-preserving deformations (SCA 07) [paper][video] Best Paper award.

     

      40  

    E. Kalogerakis, P. Simari, D. Nowrouzezahrai, K. Singh, Robust statistical estimation of curvature on discretized surfaces, Proceedings of the 2007 ACM SIGGRAPH/Eurographics Symposium on Geometry Processing (SGP 2007)

     

        39   T. Popa, D. Julius, A. Sheffer, Interactive and Linear Material Aware Deformations, International Journal of Shape Modeling, 2007, to appear.
        38   V. Kraevoy, D. Julius, A. Sheffer, Model Composition from Interchangeable Components, Proc. Pacific Graphics 2007, to appear.PDF
      37   K. Rose, A. Sheffer, J. Wither, M.-P. Cani, B.Thibert , Developable Surfaces from Arbitrary Sketched Boundaries, Proc. Eurographics/ACM SIGGRAPH Symposium on Geometry Processing (SGP), 2007.PDF
      36   R. Gal, O, Sorkine, T., Popa, A. Sheffer, D. Cohen-Or, 3D Collage: Expressive Non-Realistic Modeling, Proc. International Symposium on Non-Photorealistic Animation and Rendering (NPAR), 2007.PDF
    (2006)        
      35   D. Julius, T. Popa, A. Sheffer, Material Aware Mesh Deformation, Proc. IEEE Shape Modelling International (SMI), 2006.
        34   Patch-based Synthesis of Geometry Textures with Point-set Surfaces
    François Duranleau and Pierre Poulin
    Proc. Vision, Modeling, and Visualization 2006, November 2006.
        33   N. Ray, W. C. Li, B. Levy, A. Sheffer, P. Alliez, Periodic Global Parameterization, ACM TOG, to appear.

      32   V. Kraevoy, A. Sheffer, Mean-Value Geometry Encoding, International Journal of Shape Modeling,12(1), 2006. [PDF
        31   P. Decaudin, D. Julius, J. Wither, L. Boissieux, A.  Sheffer, M.-P. Cani, Virtual Garments: A Fully Geometric Approach for Clothing Design, Computer Graphics Forum (Proc Eurographics  2006), 25(3), to appear.
        30   Patch-based Synthesis of Geometry Textures with Point-set Surfaces, François Duranleau and Pierre Poulin Proc. Vision, Modeling, and Visualization 2006, November 2006. paper.

      29   Dana Sharon and Michiel van de Panne. Constellation Models for Sketch Recognition. EG SBIM 2006: Eurographics Workshop on Sketch Based Interfaces and Modeling. paper: PDF (8 pages, 1.6 Mb)
        28   V. Jain, H. Zhang, O. van Kaick, "Non-Rigid Spectral Correspondence of Triangle Meshes," submitted to International Journal on Shape Modeling (via invitation to Special Issue of SMI 2006). [PDF]
        27   V. Jain and H. Zhang, "A Spectral Approach to Shape-Based Retrieval of Articulated 3D Models," accepted to Computer-Aided Design with minor revision, (via invitation to Special Issue of GMP 2006), extended version with enhanced results. [PDF]
        26   J. Li and H. Zhang, "Nonobtuse Remeshing and Decimation," in Proceeding of Symposium on Geometry Processing (SGP) 2006 (short paper), pp.235-238. [PDF] [PPT Slides]
        25   M. Olson and H. Zhang, "Silhouette Extraction in Hough Space," Computer Graphics Forum (Special Issue on Eurographics 2006), Volume 25, Number 3, pp. 273-282, 2006. [PDF] [PDF Slides]
        24   V. Jain and H. Zhang, "Shape-Based Retrieval of Articulated 3D Models Using Spectral Embeddings," in Proceeding of Geometric Modeling and Processing 2006, pp. 295-308. [PDF] [PPT Slides **]
        23   R. Liu, H. Zhang, and O. van Kaick, "Spectral Sequencing based on Graph Distance," in Proceeding of Geometric Modeling and Processing 2006, pp. 632-638. [PDF] [PPT Poster]
        22   R. Liu, V. Jain, and H. Zhang, "Subsampling for Efficient Spectral Mesh Processing," in Proceeding of Computer Graphics International 2006, Lecture Notes in Computer Science 4035, H.-P. Seidel, T. Nishita, and Q. Peng, Eds., pp. 172-184, 2006. [PDF] [PPT Slides]
        21   V. Jain and H. Zhang, "Robust 3D Shape Correspondence in the Spectral Domain," in Proceeding of International Conference on Shape Modeling and Applications (SMI) 2006, pp. 118-129, 2006. [PDF] [PPT Slides]
        20   A. Clements and H. Zhang, "Minimum Ratio Contours on Surface Meshes," in Proceeding of International Conference on Shape Modeling and Applications (SMI) 2006, pp. 26-37, 2006. [PDF] [PPT Slides]
      19  

    "Folding Meshes: Hierarchical mesh segmentation based on planar symmetry," Patricio Simari, Evangelos Kalogerakis, Karan Singh, Eurographics Symposium on Geometry Processing 2006. (To appear.) [abstract] [pdf]

     

    (2005)

           
      18   V. Jain and H. Zhang, "Robust 2D Shape Correspondence using Geodesic Shape Context," Pacific Graphics 2005 (short paper).
      17   H. Zhang and R. Liu, "Mesh Segmentation via Recursive and Visually Salient Spectral Cuts," Vision, Modeling, and Visualization, 2005.
      16   Patricio D. Simari, Karan Singh, "Extraction and remeshing of ellipsoidal representations from mesh data",  Graphics Interface 2005. [pdf]

     

      15   Chen Yang, Dana Sharon, and Michiel van de Panne. Sketch-based Modeling of Parameterized Objects.
    accepted to: 2nd Eurographics Workshop on Sketch-Based Interfaces and Modeling, Dublin, August 28-29, 2005.
     paper: PDF (10 pages, 3.1 Mb)       video: Quicktime (10Mb).

    ACM SIGGRAPH 2005 Technical Sketch, Los Angeles, July 31-Aug 4, 2005.
          paper: PDF (1 page, 1.4 Mb)

    (2004)        
      14   H. Zhang, “Discrete Combinatorial Laplacian Operators for Digital Geometry Processing,” Proc. SIAM Conference on Geometric Design and Computing, 2004, to appear.
      13  

    Tovi Grossman, Daniel Wigdor, Ravin Balakrishnan. (2004). Multi-finger gestural interaction with 3-D volumetric displays. Proceedings of UIST 2004 – the ACM Symposium on User Interface Software and Technology. p. 61-70.

    UIST 2004 Best Paper Award

    video

     

        12   Hamish Carr, Jack Snoeyink, and Michiel van de Panne. Simplifying Flexible Isosurfaces Using Local Geometric Measures. IEEE Visualization 2004.
             
      11  

    Patrick Coleman, Karan Singh. (2004). Cords: Keyframe Control of Curves with Physical Properties. SIGGRAPH 2004 Sketches. ACM SIGGRAPH 2004. 
    2min sketch video

             

      10   Matthew Thorne, David Burke, and Michiel van de Panne, Motion Doodles: An Interface for Sketching Character Motion. ACM SIGGRAPH 2004.
             
      9   Emric Epstein, Martin Granger-Piché, Pierre Poulin. (2004). Exploiting Mirrors in Interactive Reconstruction with Structured Light. To appear. Proceedings of Vision, Modeling and Visualization 2004. November 2004.
             
        8  

    Martin Granger-Piché, Emric Epstein, Pierre Poulin. (2004). Interactive Hierarchical Space Carving with Projector-based Calibrations. To appear. Proceedings of Vision, Modeling and Visualization 2004. November 2004.

             
      7   Rong Liu, Hao Zhang. (2004). Segmentation of 3D Meshes Through Spectral Clustering. Proc. Pacific Graphics 2004, pp 298-305.
             
      6  

    Steven Tsang, Ravin Balakrishnan, Karan Singh, Abhishek Ranjan. (2004). A suggestive interface for image guided 3D sketching. Proceedings of CHI 2004 the ACM Conference on Human Factors in Computing Systems. p. 591-598.

    video

     

             
      5  

    Karan Singh, Hans K. Pedersen, Venkat Krishnamurthy. (2004). Feature Based Retargeting of Parameterized Geometry. GMP, p. 163-172. IEEE 2004 Geometric Modeling and Processing (GMP 2004), Theory and Applications.

             
    (2003)

     

           
      4   Hao Zhang, Eugene Fiume. (2003). Butterworth Filtering and Implicit Fairing of Irregular Meshes. Proceedings of Pacific Graphics 2003, p. 502-506. Pacific Graphics 2003.
             
      3  

    Michael McGuffin, Liviu Tancau, Ravin Balakrishnan. (2003). Using deformations for browsing volumetric data. Proceedings of Vis 2003 the IEEE Visualization Conference. p. 401-408.

    4min video demonstrating key aspects of the research

    complete 8min video demonstrating all the techniques developed in the research

     

             
      2  

    Tovi Grossman, Ravin Balakrishnan, Karan Singh. (2003). An interface for creating and manipulating curves using a high degree-of-freedom input device. Proceedings of CHI 2003 the ACM Conference on Human Factors in Computing Systems. p. 185-192.

    3min video demonstrating basic aspects of the research system

    complete 15min video demonstrating the entire research system

    interview/demo on Discovery Channel's Daily Planet

    interview/demo on CityPulse24

     

        1   P. Poulin, M. Stamminger, F. Duranleau, M-C. Frasson, G. Drettakis, “Interactive Point-Based Modeling of Complex Objects from Images,” Proc. Graphics Interface 2003.

    B. Non-Refereed Contributions

    1. Non-refereed papers, course notes

         
         
         
         

    2. Theses

    1 Francois Duranleau. Modélisation interactive par points d'objets complexes à partir d'images MSc 2002.
    2 Patrick Coleman. Interactive Control of Nonlinear Projection for Complex Animated Scenes. M. Sc. Thesis. University of Toronto. 2004.
    3 Tovi Grossman. Alternate User Interfaces for the Manipulation of Curves in 3D Environments M. Sc. Thesis. University of Toronto. 2004.
    4 Xia Liu.
    5 Dan Xiao. Sketch-based Instancing of Parameterized 3D Models MSc 2004.
    6 Jia Sheng.
    7 Steve Tsang.
    8 Chen Yang. Sketch-based Modeling of Parameterized Objects MSc 2006.
    9 Varun Jain. Robust correspondence and retrieval of articulated shapes. Msc 2006.
    10 Ginger Li. Towards Expression-Invariant Face Recognition using Multiple Adaptive Attributes MSc 2006.
    11 Andrew Clements. Minimun ratio contours for meshes. MSc 2006.
    12 Evangelos Kalogerakis. Robust statistical estimation of curvature on discretized surfaces. MSc 2006.
    13 Vladislav Kraevoy. Model Repair and Editing Tools. PhD 2007.
    14 Ken Rose. Modeling Developable Surfaces from Arbitrary Boundary Curves. MSc 2007.
    15 Patricio Simari. Algorithms in 3D shape segmentation. PhD 2009.
    16 Ramsay Dyer.Self-Delaunay Meshes for Surfaces. PhD 2010.
    17 Rong Liu. Spectral mesh segmentation. PhD 2009.
    18 Tiberiu Popa PhD 2009.
    19 Evangelos Kalogerakis. Machine learning algorithms for geometry processing. PhD 2010.
    20 Ryan Schmidt.Part-Based Representation and Editing of 3D Surface Models. PhD 2010.
    21 Matt Olson. Silhouette Extraction.PhD 2011