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- Costa Touma, Craig Gotsman
- Graphics Interface
- 1998

- Zachi Karni, Craig Gotsman
- EuroCG
- 2000

We show how spectral methods may be applied to 3D mesh data to obtain compact representations. This is achieved by projecting the mesh geometry onto an orthonormal basis derived from the mesh topology. To reduce complexity, the mesh is partitioned into a number of balanced submeshes with minimal interaction, each of which are compressed independently. Our… (More)

- Zachi Karni, Craig Gotsman
- Computers & Graphics
- 2004

We describe a compression scheme for the geometry component of 3D animation sequences. This scheme is based on the principle component analysis (PCA) method, which represents the animation sequence using a small number of basis functions. Second-order linear prediction coding (LPC) is applied to the PCA coefficients in order to further reduce the code size… (More)

- Ligang Liu, Lei Zhang, Yin Xu, Craig Gotsman, Steven J. Gortler
- Comput. Graph. Forum
- 2008

We present a novel approach to parameterize a mesh with disk topology to the plane in a shape-preserving manner. Our key contribution is a local/global algorithm, which combines a local mapping of each 3D triangle to the plane, using transformations taken from a restricted set, with a global "stitch" operation of all triangles, involving a sparse linear… (More)

- Thabo Beeler, Fabian Hahn, +5 authors Markus H. Gross
- ACM Trans. Graph.
- 2011

We present a new technique for passive and markerless facial performance capture based on <i>anchor frames</i>. Our method starts with high resolution per-frame geometry acquisition using state-of-the-art stereo reconstruction, and proceeds to establish a single triangle mesh that is propagated through the entire performance. Leveraging the fact that facial… (More)

- Robert W. Sumner, Matthias Zwicker, Craig Gotsman, Jovan Popovic
- ACM Trans. Graph.
- 2005

The ability to position a small subset of mesh vertices and produce a <i>meaningful</i> overall deformation of the entire mesh is a fundamental task in mesh editing and animation. However, the class of meaningful deformations varies from mesh to mesh and depends on mesh kinematics, which prescribes valid mesh configurations, and a selection mechanism for… (More)

- Craig Gotsman, Xianfeng Gu, Alla Sheffer
- ACM Trans. Graph.
- 2003

Parameterization of 3D mesh data is important for many graphics applications, in particular for texture mapping, remeshing and morphing. Closed manifold genus-0 meshes are topologically equivalent to a sphere, hence this is the natural parameter domain for them. Parameterizing a triangle mesh onto the sphere means assigning a 3D position on the unit sphere… (More)

- Reuven Bar-Yehuda, Craig Gotsman
- ACM Trans. Graph.
- 1996

We investigate architechural schemes, generalizing that of existing graphics engines, supporting fast rendering of traingle meshes. A mesh defined on <italic>n</italic> vertices is rendered by sending vertices down a graphics pipeline, after which they are pushed on a stack to by popped when no longer needed. Only individual traingles whose vertices are… (More)

- Vitaly Surazhsky, Craig Gotsman
- Symposium on Geometry Processing
- 2003

We present a new remeshing scheme based on the idea of improving mesh quality by a series of local modifications of the mesh geometry and connectivity. Our contribution to the family of local modification techniques is an areabased smoothing technique. Area-based smoothing allows the control of both triangle quality and vertex sampling over the mesh, as a… (More)

- Vladislav Kraevoy, Alla Sheffer, Craig Gotsman
- ACM Trans. Graph.
- 2003

Texture mapping enhances the visual realism of 3D models by adding fine details. To achieve the best results, it is often necessary to force a correspondence between some of the details of the texture and the features of the model.The most common method for mapping texture onto 3D meshes is to use a planar parameterization of the mesh. This, however, does… (More)