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» Geometry of Isophote Curves
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JZUSC
2010
129views more  JZUSC 2010»
13 years 7 months ago
Representing conics by low degree rational DP curves
: A DP curve is a new kind of parametric curve defined by Delgado and Peña (2003); it has very good properties when used in both geometry and algebra, i.e., it is shape preserving...
Qian-qian Hu, Guo-jin Wang
SMA
2009
ACM
149views Solid Modeling» more  SMA 2009»
14 years 3 months ago
A sketching interface for feature curve recovery of free-form surfaces
In this paper, we present a semi-automatic approach to efficiently and robustly recover the characteristic feature curves of a given free-form surface. The technique supports a s...
Ellen Dekkers, Leif Kobbelt, Richard R. Pawlicki, ...
CGF
2006
125views more  CGF 2006»
13 years 8 months ago
Translational Covering of Closed Planar Cubic B-Spline Curves
Spline curves are useful in a variety of geometric modeling and graphics applications and covering problems abound in practical settings. This work defines a class of covering dec...
Cristina Neacsu, Karen Daniels
SIGGRAPH
1993
ACM
14 years 26 days ago
Interval methods for multi-point collisions between time-dependent curved surfaces
We present an efficient and robust algorithm for finding points of collision between time-dependent parametric and implicit surfaces. The algorithm detects simultaneous collisio...
John M. Snyder, Adam R. Woodbury, Kurt W. Fleische...
IMR
1999
Springer
14 years 1 months ago
Mesh Association: Formulation and Algorithms
In computational simulation of coupled, multicomponent systems, it is frequently necessary to transfer data between meshes that may di er in resolution, structure, and discretizat...
Xiangmin Jiao, Herbert Edelsbrunner, Michael T. He...