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Sketches & Applications

 

Mathematical Methods
 
Chair: Michael Gleischer , University of Wisconsin
 
Decremental Delaunay Triangulation
 
New results on removing points from a Delaunay triangulation and computing decremental Delaunay triangulation.
 
Richard Hammersley
Schlumberger
8311 North RR 620
Austin, Texas 78726 USA
hammersley@austin.apc.slb.com
 
Enhancing the Efficiency and Versatility of Directly Manipulated Free-Form Deformation
 
Exploitation of matrix sparsity and intuitive manipulation of first- derivative properties to enhance speed and versatility in directly manipulated FFD.
 
James Gain
University of Cambridge
Computer Laboratory
New Museums Site
Pembroke Street
Cambridge CB2 3QG
UNITED KINGDOM
jeg24@cl.cam.ac.uk
 
Multi-Dimensional Quaternion Interpolation
 
In this search for a multi-variate version of Shoemake's famous "slerp" function, two methods (using RBFs) have been implemented to continuously interpolate between several kinematic animation examples that differ along emotional input axes, such as happiness and fatigue. The extrinsic version was incorporated in the Swamped! interactive exhibit at SIGGRAPH 98, and the intrinsic version is used in the Millennium Motel (SIGGRAPH 99).
 
Michael Patrick Johnson
Massachusetts Institute of Technology
20 Ames Street, E15-320G
Cambridge, Massachusetts 02139 USA
aries@media.mit.edu
 
Fast Polygon Mesh Querying by Example
 
An efficient method for comparing a low-resolution polygon mesh query model to a database of complex models using voxelisation and wavelet decomposition.
 
James Gain
University of Cambridge
Computer Laboratory
New Museums Site
Pembroke Street
Cambridge CB2 3QG
UNITED KINGDOM
jeg24@cl.cam.ac.uk

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