Sheffer Alla – Curriculum Vitae
(last update Feb.
08)
Assistant Professor
Department of Computer Science
University of British Columbia
201-2366 Main Mall, Vancouver, BC,
Canada V6T 1Z4
(tel.) +1-(604)-822-4030 (fax.) +1-(604)822-5485
sheffa@cs.ubc.ca
http://www.cs.ubc.ca/~sheffa
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My
research focuses on digital geometry processing and evolves around meshes
(polygonal model representations). The main application areas of this
research are computer graphics and computer aided engineering
applications. In my research I utilize
tools from applied computational geometry, differential geometry and graph
theory to generate, manipulate, and edit three-dimensional geometric models.
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1999 |
Hebrew University of Jerusalem, Israel, Ph.D. Computer Science |
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1995 |
Hebrew
University of Jerusalem, Israel, M.Sc. (Cum
Laude) Computer Science |
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1991 |
Hebrew
University of Jerusalem, Israel, B.Sc. (Summa Cum Laude) Math and Computer
Science |
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2003- |
Assistant Professor, Computer Science Department, UBC |
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2001- 2003 |
Assistant Professor, Computer Science Department, Technion |
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1999-2001 |
Postdoctoral Research Associate, University of Illinois at Urbana-Champaign |
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1997 |
Visiting Scholar, Faculté Leonard de Vinci, Paris, France, (6 month) |
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1995-1999 |
Research/Teaching Assistant, Hebrew University |
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1996-1999 |
Consultant, Fluent,
Inc. IL, USA |
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1995 |
Software Engineer, Schema, Inc. |
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1991-1995 |
Software
Engineer, Israel Defense Forces |
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2008 |
Discrete Math and Data Structures (221), UBC |
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2007/06/05/04 |
Digital Geometry Processing (524, formerly 533A), UBC |
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2006 |
Geometric Modeling (424), UBC |
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2005, 2004 |
Introduction to Computer Graphics (314), UBC |
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2003,
2002 |
Digital
Geometry Processing, Technion– Ranked top 15% (within elective/graduate
courses category) in student teaching evaluation (2002). |
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2002, 2001 |
Introduction to Computer Graphics, Technion |
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1998 |
Introduction to Computer Science, TA, Hebrew University |
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1997 |
Programming Laboratory, Lecturer, Hebrew University |
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1996, 1995 |
Programming Laboratory, TA, Hebrew University |
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Journal Papers |
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1.
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H. Fu, D. Cohen-Or, G. Dror, A. Sheffer, Upright Orientation of Man-Made Objects, ACM Transaction on Graphics (Proc. SIGGRAPH 2008), 27(3), 2008. to appear. |
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2.
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D. Bradley, T. Popa, A.
Sheffer, W. Heidrich, T. Boubekeur,
Markerless Garment Capture, ACM Transaction on Graphics (Proc.
SIGGRAPH 2008), 27(3), 2008. to
appear. |
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3.
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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. to
appear. |
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4.
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T. Popa, D. Julius, A. Sheffer, Interactive and Linear Material Aware Deformations, International Journal of Shape Modeling, 13(1), 73 – 100, 2007. |
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5.
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A. Sheffer, E. Praun, K. Rose, Mesh Parameterization Methods and their Applications, Foundations and Trends® in Computer Graphics and Vision, Now Publishers, 2006, ISBN 978-1-933019-43-7, (also Foundations and Trends® in Computer Graphics and Vision, volume 2(2),2006). |
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6.
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N. Ray, W. C. Li, B. Levy,
A. Sheffer, P. Alliez, Periodic Global
Parameterization, ACM TOG, 25(4), 1460 - 1485 , 2006. |
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7.
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V. Kraevoy, A. Sheffer, Mean-Value Geometry Encoding, International Journal of Shape Modeling, 12(1), 2006. |
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8.
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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),2006. |
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9.
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D Julius, V. Kraevoy, A. Sheffer, D-Charts: Quasi-Developable Mesh Segmentation, Computer Graphics Forum (Proc Eurographics 2005), 24(3), 981-990, 2005 |
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10.
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A. Sheffer, B. Lévy, M. Mogilnitsky, A,
Bogomyakov, ABF++: Fast and Robust Angle Based
Flattening, ACM Transactions on Graphics, 24(2), 311-330 2005 |
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11.
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V. Kraevoy, A. Sheffer, Cross-Parameterization and Compatible Remeshing of 3D Models, ACM Transactions on Graphics (Proc. SIGGRAPH 2004), 23(3), 861 – 869, 2004 |
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12.
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A. Sheffer, C. Gotsman and N. Dyn, Robust
Spherical Parameterization of Triangular Meshes, Computing, 72,
185-193, 2004 |
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13.
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R. Raab, C. Gotsman,
and A. Sheffer, Virtual Woodwork:
Making Toys from 3D Models, International
Journal of Shape Modelling, 2004, 10(1),
1-30, 2004. |
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14.
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A. Sheffer, Skinning 3D Meshes, Graphical Models, 65(5), 274-285,
2003. |
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15.
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V. Kraevoy, A. Sheffer, C. Gotsman, Matchmaker: Constructing Constrained Texture
Maps, ACM Transactions on Graphics (Proc. SIGGRAPH 2003), 22(3),
326-333, 2003. |
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16.
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C. Gotsman, X. Gu, A. Sheffer, Fundamentals of Spherical Parameterization for 3D Meshes, ACM Transactions on Graphics (Proc. SIGGRAPH 2003), 22(3), 358-363, 2003. |
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17.
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.A. Üngör, A. Sheffer, R. B. Haber, and S.-H. Teng, Layer based solutions for constrained spacetime meshing, Applied Numerical Mathematics, 46(3-4), 425-443, 2003. |
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18.
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A. Sheffer, E. de Sturler, Smoothing
an Overlay Grid to Minimize Linear Distortion in Texture Mapping, ACM Transactions on
Graphics, 21(4), 874-890, 2002. |
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19.
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A. Ungor,
A. Sheffer, Pitching Tents in Space-Time: Mesh Generation for
Discontinuous Galerkin Method, International
Journal of Foundations of Computer Science (IJFCS), 13(2), 201-221,
2002. |
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20.
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A. Sheffer, A. Ungor, Efficient Adaptive Meshing of Parametric Models, Journal of Computing and Information Science in Engineering, 1(4), 366-375, 2001. |
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21.
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A. Sheffer and E. de Sturler, Parameterization of Faceted Surfaces for Meshing Using Angle Based Flattening, Engineering with Computers, 17 (3), 326-337, 2001. |
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22.
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A. Sheffer, Model Simplification for Meshing Using Face Clustering, Computer-Aided Design (CAD), 33: 925-934, 2001. |
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23.
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A. Sheffer, T. Blacker, M. Bercovier, Virtual Topology Operators for Meshing, International Journal of Computational Geometry and applications, 10(3), 309-331, 2000. |
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24.
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A. Sheffer, M. Bercovier, Hexahedral Meshing of Non-Linear Volumes Using Voronoi Faces and Edges, International Journal for Numerical Methods in Engineering, 49(1-2), 329-351, 2000. |
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25.
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A. Sheffer, M. Etzion, A. Rappoport, M. Bercovier Hexahedral Mesh Generation Using the Embedded Voronoi Graph, Engineering with Computers, 15, 248-262, 1999. |
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26.
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O. Volpin, A. Sheffer, M. Bercovier, L. Joskowicz, Mesh Simplification with Smooth Surface Reconstruction, Computer-Aided Design (CAD), 30, 875-882, 1998. |
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27.
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A. Rappoport, A. Sheffer, M. Bercovier, Volume Preserving Free Form Solids, IEEE Transactions on Visualization and Computer Graphics, 2(1), 19-27, 1996. |
Refereed Proceedings |
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28.
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V.
Kraevoy, D. Julius, A. Sheffer, Model Composition from Interchangeable
Components, Proc. Pacific Graphics 2007. |
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29.
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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. |
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30.
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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. |
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31.
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D. Julius, T. Popa, A. Sheffer, Material Aware Mesh Deformation, Proc. IEEE Shape Modelling International (SMI), 2006. |
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32.
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V.Kraevoy, A. Sheffer, Template Based Mesh Completion, Proc. Symposium on Geometry Processing (SGP), 2005. |
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33.
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S.Saba, I. Yavneh, C. Gotsman, A. Sheffer, Practical Spherical Embedding of Manifold Triangle Meshes, Proc. IEEE Shape Modelling International (SMI), 2005. |
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34.
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A. Sheffer, V. Kraevoy, Pyramid Coordinates for Morphing and Deformation, Proc. Second IEEE International Symposium on 3DPVT (3D Data Processing, Visualization, and Transmission), 2004. (invited) |
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35.
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O. Sifri, A. Sheffer, C. Gotsman, Geodesic-Based Surface Remeshing, Proc.
12th International Meshing Roundtable, 2003. |
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36.
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A Sheffer, J. Hart, Seamster:
Inconspicuous Low-Distortion Texture Seam Layout, Proc. IEEE
Visualization 2002 (Vis02), 291-298,
2002. |
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37.
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A. Sheffer, Spanning
Tree Seams for Reducing Parameterization Distortion of Triangulated Surfaces,
Proc. IEEE Shape Modelling
International, 61-66, 2002. |
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38.
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J. Liesen,
E. de Sturler, A. Sheffer, Y. Aydin,
C. Siefert, Preconditioners
for Indefinite Linear Systems Arising in Surface Parameterization, Proc.
10th International Meshing Round Table, 71-82, 2001. |
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39.
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A. Sheffer, A. Ungor, Efficient Adaptive Meshing of Parametric Models, Proc. Sixth ACM SIGGRAPH Symposium on Solid Modeling and Applications (Solid Modeling '01), 59-70, 2001. |
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40.
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A. Sheffer, E. de Sturler, Surface Parameterization for Meshing by Triangulation Flattening. Proc. 9th International Meshing Roundtable, 161-172, 2000. |
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41.
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A. Ungor, A. Sheffer, Tent-Pitcher: A Meshing Algorithm for Space-Time Discontinuous Galerkin Methods. Proc. 9th International Meshing Roundtable, 111-122, 2000. |
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42.
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A. Sheffer, M. Etzion, A. Rappoport, M. Bercovier, Hexahedral Mesh Generation Using the Embedded Voronoi Graph, Proc. 7th International Meshing Roundtable, 347-364, 1998. |
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43.
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Sheffer, A., Blacker, T. and Bercovier, M., CAD Data Repair Based on Virtual Topology, Proc. of DETC'98, 1998 ASME Design Engineering Technical Conferences, DETC98/DAC-5566, 1-10. 1998. |
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44.
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A. Sheffer, T. Blacker, M. Bercovier, Virtual Topology Operators for Meshing, Proc. 6th International Meshing Roundtable, 49-66, 1997. |
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45.
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A. Sheffer, T. Blacker, J. Clements, M. Bercovier, Virtual Topology Construction and Applications. Geometric Modeling: Theory and Practice, Eds. Strasser, Klein, Rau, Springer-Verlag, 247-259, 1997. |
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46.
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A. Rappoport, A. Sheffer, M. Bercovier, Volume Preserving Free Form Solids. Proc. Third ACM SIGGRAPH Symposium on Solid Modeling and Applications (Solid Modeling '95), 361-372, 1995. |
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Refereed Abstracts/Posters |
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47.
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V. Kraevoy, A. Sheffer, Variational meaningful shape decomposition, SIGGRAPH 2006, technical sketch. |
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48.
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R. Gal, O. Sorkine, T. Popa, A. Sheffer, D. Cohen-Or, Non-realistic expressive modeling, SIGGRAPH 2006, technical sketch. |
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49.
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V. Kraevoy, A. Sheffer, Boneless Motion Reconstruction, SIGGRAPH 2005, technical sketch. |
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50.
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D. Julius V. Kraevoy A. Sheffer, Real Toys from Virtual Models, SIGGRAPH 2005, technical sketch. |
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51.
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T. Popa, D. Julius, A. Sheffer, Material Aware Mesh Deformations, SIGGRAPH 2005, Posters, Winner of the ACM student research competition. |
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52.
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V. Kraevoy, A. Sheffer, Shape Preserving Mesh Deformation, SIGGRAPH 2004, technical sketch. |
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53.
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A. Rappoport, A. Sheffer, M. Bercovier, Volume Preserving Free Form Solids. SIGGRAPH 1994, technical sketch. |
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Books/Book
Chapters/Non-Refereed Proceedings (including proc. for refereed conferences with100% acceptance rate) |
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54.
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A. Sheffer, K. Polthier,
editors, Symposium on Geometry Processing 2006, (SGP 06), Eurographics/ACM Siggraph 2006. |
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55.
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A Sheffer, C. Gotsman, N. Dyn, Robust Spherical Parameterization of Triangular
Meshes, Proc. 4th Israel-Korea Bi-National
Conference on Geometric Modeling and Computer Graphics, 94-99,2003. |
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56.
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A. Sheffer, Non-Optimal Parameterization and User Control, Curve and Surface Design: St Malo 2002, Eds. T. Lyche, L.L. Mazure, L. L. Schumaker, VU Press, 355-364, 2003. |
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57.
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A. Sheffer, E. de Sturler, Parameterization of CAD Surfaces for Meshing by Triangulation Flattening. Numerical Grid Generation in Computational Field Simulation, Eds. Soni, Hauser, Thompson, Eiseman, 699-708, 2000. |
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58.
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A. Ungor, A. Sheffer, R. Haber, Space-Time Meshes for Non-linear Hyperbolic Problems Satisfying a Non-uniform Cone Constraint. Numerical Grid Generation in Computational Field Simulation, Eds. Soni, Hauser, Thompson, Eiseman, 375-384, 2000. |
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59.
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A. Sheffer, T. Blacker and M. Bercovier, Steps Towards Smooth CAD-FEM Integration. Numerical Grid Generation in Computational Field Simulation, Eds. Cross, Eiseman, Hauser, Soni, Thompson, ISGG, 705-714, 1998. |
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60.
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T. Blacker, A. Sheffer, J. Clements, M. Bercovier, Using Virtual Topology to Simplify the Mesh Generation Process. Trends in Unstructured Mesh Generation, ASME Press, 45-50, 1997. |
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61.
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A. Sheffer, T. Blacker, M. Bercovier, Clustering: Automated Detail Suppression Using Virtual Topology. Trends in Unstructured Mesh Generation, ASME Press, 57-64, 1997. Also Proc. Israel-Korea Bi-National Conference on New Themes in Computerized Geometric Modeling, 111-116, 1998. |
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2007-2008 |
Extraction of Terrain and Vegetation Layers from
LIDAR Data, GEOIDE NCE, PI |
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2007-2012 |
Digital Geometry Processing Tools, Discovery Grant, NSERC, PI |
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2006- |
Mathematical Surface Representations for Conceptual Design, MITACS NCE, Co-PI |
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2006 |
IBM Faculty Award |
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2006 |
Direct Multi-Touch Interaction for a Very Large Wall Display, NSERC, RTI, Co-PI |
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2005-2006 |
GEOREP: Geometrical representations for computer graphics, Inria (France) Cooperative Research Initiatives, Co-PI. |
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2003-2007 |
Digital Geometry Processing Tools, Discovery Grant, NSERC, PI |
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2002 |
Multidimensional
Visualization and Analysis of Medical Imaging. |
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2002-2003 |
Foundations of Virtual Reality and Medical Applications, Ministry of Science (MOST), Israel, Co-PI |
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2002-2003 |
Improving Display Quality of Military Simulation, Institute for Future Defense Research, Israel, Co-PI |
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2000-2001 |
Surface Smoothness Parameterization Studies, Sandia National Laboratories, USA, Co-PI |
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Feb – Jul 1997 |
French Ministry of Foreign Affairs, Chateaubriand Visiting Scholar Fellowship |
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In Progress |
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Postdoc 2007- |
Hongbo Fu |
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PhD 2004- |
Tiberius Popa |
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MSc 2007- |
Cody Robson |
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MSc 2007- |
Ian South-Dickinson |
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MSc 2007- |
Qingnan (James) Zhou |
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MSc 2007- |
Xi Chen |
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MSc 2006- |
Xianglong (Steven) Chang (co-supervised by M. Van de Panne) |
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Graduated |
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PostDoc 2008 |
Vladislav Kraevoy (Sep. 2007 – Jan 2008) |
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PhD 2007 |
Vladislav Kraevoy |
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MSc 2007 |
Kenneth Rose |
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MSc 2006 |
Dan Julius |
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MSc 2005 |
Shadi Saba (co-supervised by I. Yavneh and C. Gotsman) (Technion) |
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MSc 2004 |
Maxim Mogilnitski (Technion) |
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MSc 2003 |
Vladislav Kraevoy (co-supervised by C. Gotsman) (Technion) |
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MSc 2003 |
Oren Sifri (co-supervised by C. Gotsman) (Technion) |
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MSc 2003 |
Roni Raab (co-supervised by C. Gotsman) (Technion) |
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Conference Plenary/Panel |
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Developable Surfaces: Approximate and Direct Modeling, Polyhedral surfaces and industrial applications, Strobl, Austria, 2007, invited speaker. |
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IEEE Shape Modeling International, June 2006, invited plenary speaker. |
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Constrained Parameterization or I Have a Hammer, Give Me a Nail, Imagina 2005 (23rd European Digital Content Creation Conference), 2005, invited speaker/panelist. |
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Symposia/Workshops/Mini-Symposia |
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Shuffler: Modeling with Interchangeable Parts, Ayia-Napa Summer Seminar, Recent Results in Rendering and Modeling in Computer Graphics, 2006, invited. |
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Template Based Mesh Completion, Dagstuhl Seminar on Geometric Modelling, 2005, invited. |
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Pyramid
Coordinates for Morphing and Deformation, Second
International Symposium on 3DPVT (3D Data Processing, Visualization, and
Transmission), September, 2004, invited. |
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3D Matchmaker: Constrained mapping in 3D, Minisymposium on Surface Mesh Parameterization, SIAM Conference on Geometric Design & Computing, November, 2003 |
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Smoothing an Overlay Grid to Minimize Linear Distortion in Texture Mapping Workshop on Geometric Modeling and Animation, FoCM'02, August 2002 |
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Applying
Texture to Models with High Curvature Using Seam Cutting First UK-Israel Symposium on Computer Graphics, April 2002 |
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Surface Parameterization and Seam Cutting, Israel SIGGRAPH chapter meeting, December 2001 |
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Angle Based Flattening of Tessellated Surfaces, Minisymposium on Surface Parameterization in Computer Graphics, CAD and CAE, SIAM Conference on Geometric Design, November 2001 |
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Geometric
and Solid Modeling Tutorial, Short
Course, 9th International Meshing Roundtable, October 2000 |
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Towards the Solution of Fundamental Issues in CAD-FEM Integration 4th World Congress on Computational Mechanics, 1998 |
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Peer-Reviewed Tutorials |
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Co-organizer and speaker: Mesh Parameterization: Theory and Practice, A. Sheffer, K. Hormann, B. Levy, M. Desbrun, K. Zhou, Full-day course, SIGGRAPH 2007 |
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Colloquia
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Contour-based Modeling Using Deformable 3D Templates, · Berliner Colloquium für Wissenschaftliche Visualisierung, July 2007. |
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Developable Surfaces from Arbitrary Sketched Boundaries, · Freie University, Berlin, June 2007. · Columbia University, New-York, February 2007 |
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Shuffler: Modeling with Interchangeable Parts, ·
Washington University in St.
Louis, September 2006 · University of Toronto, July 2006 · The University of Tokyo, June 2006 ·
University of Illinois, Urbana-Champaign, February, 2006 |
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Fundamentals of Spherical Parameterization
for 3D Meshes, · Institute of Applied
Mathematics, UBC, March
2004 |
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Mapping Textures to Models, · University of Washington, December, 2003 · Hebrew University, Israel, December 2003 · SFU, November 2003 |
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Seamster: Inconspicuous
Low-Distortion Texture Seam Layout · NYU, October 2002 |
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Sweatshop: Ironing and Cutting (Parameterization of Surface Meshes) · University of Illinois, Urbana-Champaign, February 2002 · University of British Columbia, May 2002 · INRIA, Sophia-Antipolis, June 2002 · GRIS, University of Tubingen, July 2002 · IBM T. J. Watson Research Center, October 2002 · University of New Mexico, September 2003 |
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Parameterization of Faceted Surfaces by Angle Based
Triangulation, · College of William and Mary,
September 2001 |
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Parameterization of Faceted Surfaces by Triangulation Flattening, ·
Math Department, CMU, January 2001 |
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Tent-Pitcher: A Meshing Algorithm for Space-Time Discontinuous Galerkin Methods, · University of Wisconsin-Madison, August 2000 |
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Parameterization of CAD Surfaces for Meshing Triangulation Flattening · Sandia National Laboratories, Albuquerque, NM, July 2000 |
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Generation of Space-Time Meshes Obeying the Cone Constraint · Hebrew University of Jerusalem, January 2000 |
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Gambit Pre-processor Tutorial · Hutchinson Research Center, Montargis, France, December 1998 |
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Steps Towards Smooth CAD-FEM Integration · Israel Aircraft Industries (IAI), May 1998 · Technion, Faculty of Mechanical Engineering, June 1998 |
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Virtual Topology Operators for Meshing · INRIA, Rocquencourt, France, May 1997 · Université Claude Bernard, LYON 1, France, June 1997 |
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Program/Organizing committee chairing |
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Program Co-Chair, Eurographics/ACM SIGGRAPH Symposium on Geometry Processing, 2006 |
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Program Co-Chair, 4th Israel-Korea Bi-National Conference on Geometric Modeling and Computer Graphics, February 2003 |
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Organizing Committee Chair, 10th International Meshing Roundtable, 2001 |
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Co-Organizer, Mini-symposium on Surface Parameterization in Computer Graphics, CAD and CAE, SIAM Conference on Geometric Design, 2001 |
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Technical Papers Co-Chair and organizing committee member, 9th International Meshing Roundtable, 2000 |
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Program/Paper
committee membership |
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Eurographics Symposium on Geometry Processing, 2003-2008 |
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ACM Symposium on Solid and Physical Modeling (SPM), 2005-2008 |
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Shape Modeling International (SMI), 2003-2008 |
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ACM Symposium on Computational Geometry, 2008 |
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Geometric Modeling and Processing, 2008 |
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Eurographics, 2004,2007 |
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ACM SIGGRAPH, 2005 |
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Pacific Graphics, 2005,2006 |
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SIAM Conference on Geometric Design and Computing,
2005,2007 |
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Graphics Interface, 2005 |
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Computer Graphics International, 2005 |
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International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision (WSCG ) 2004, 2005 |
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Editor/Editorial
Board Member |
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Computers and Graphics, Associate editor (2007), Editorial board member (2008-). |
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Guest editor |
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Computer Graphics Forum , Special Theme on Geometry Processing, Edited by Alla Sheffer and Konrad Polthier, 2007. |
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International Journal of Shape Modeling, Special issue from 4th Israel-Korea Bi-National Conference on Geometric Modeling and Computer Graphics, 2003 |
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Engineering with Computers, Special issue on unstructured mesh generation, 2002 |
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Referee for
journals (incomplete list) |
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ACM Transactions on Graphics IEEE Transactions on Visualization and Computer Graphics International Journal of Shape Modeling Computer Aided Design (CAD) International Journal of Computational Geometry & Applications (IJCGA) International Journal of Numerical Methods in Engineering Engineering with Computers Physical Review Special Topics Computer Modeling in Engineering and Sciences |
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Reviewer for
conferences (incomplete list) |
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SIGGRAPH, Eurographics, IEEE Visualization, Eurographics Symposium on Rendering, ACM Symposium on Computational Geometry, ACM Symposium on Interactive 3D Graphic, ACM/Siggraph Symposium on Solid Modeling and Applications, International Meshing Roundtable, Pacific Graphics, Graphics Interface, NPAR, ASME International Design Engineering Technical Conferences, US National Congress on Computational Mechanics. |