Sciweavers

VG
2003
14 years 1 months ago
Rapid Emission Tomography Reconstruction
We present new implementations of the Maximum Likelihood Expectation Maximization (EM) algorithm and the related Ordered Subset EM (OSEM) algorithm. Our implementation is based on...
Ken Chidlow, Torsten Möller
SGP
2003
14 years 1 months ago
A geometric database for gene expression data
As the logical next step after sequencing the mouse genome, biologists have developed laboratory methods for rapidly determining where each of the 30K genes in the mouse genome is...
Joe D. Warren, Tao Ju, Gregor Eichele, Christina T...
SGP
2003
14 years 1 months ago
Stellar Subdivision Grammars
In this paper we develop a new description for subdivision surfaces based on a graph grammar formalism. Subdivision schemes are specified by a context sensitive grammar in which ...
Luiz Velho
SGP
2003
14 years 1 months ago
Multi-Chart Geometry Images
We introduce multi-chart geometry images, a new representation for arbitrary surfaces. It is created by resampling a surface onto a regular 2D grid. Whereas the original scheme of...
Pedro V. Sander, Zoë J. Wood, Steven J. Gortl...
SGP
2003
14 years 1 months ago
Provably Good Surface Sampling and Approximation
We present an algorithm for meshing surfaces that is a simple adaptation of a greedy “farthest point” technique proposed by Chew. Given a surface S, it progressively adds poin...
Steve Oudot, Jean-Daniel Boissonnat
SGP
2003
14 years 1 months ago
CLODs: Dual Hierarchies for Multiresolution Collision Detection
We present “contact levels of detail” (CLOD), a novel concept for multiresolution collision detection. Given a polyhedral model, our algorithm automatically builds a “dual h...
Miguel A. Otaduy, Ming C. Lin
SGP
2003
14 years 1 months ago
Smooth Geometry Images
Previous parametric representations of smooth genus-zero surfaces require a collection of abutting patches (e.g. splines, NURBS, recursively subdivided polygons). We introduce a s...
Frank Losasso, Hugues Hoppe, Scott Schaefer, Joe D...
SGP
2003
14 years 1 months ago
Rotation Invariant Spherical Harmonic Representation of 3D Shape Descriptors
One of the challenges in 3D shape matching arises from the fact that in many applications, models should be considered to be the same if they differ by a rotation. Consequently, w...
Michael M. Kazhdan, Thomas A. Funkhouser, Szymon R...
SGP
2003
14 years 1 months ago
Statistical Point Geometry
We propose a scheme for modeling point sample geometry with statistical analysis. In our scheme we depart from the current schemes that deterministically represent the attributes ...
Aravind Kalaiah, Amitabh Varshney
SGP
2003
14 years 1 months ago
Global Conformal Parameterization
We solve the problem of computing global conformal parameterizations for surfaces with nontrivial topologies. The parameterization is global in the sense that it preserves the con...
Xianfeng Gu, Shing-Tung Yau