98 search results - page 4 / 20 » Linear Approximation of Trimmed Surfaces |
PG
2000
IEEE
14 years 7 days ago
2000
IEEE
PDE surfaces, whose behavior is governed by Partial Differential Equations (PDEs), have demonstrated many modeling advantages in surface blending, free-form surface modeling, and ...
Publication
We propose to combine a triangular element surface model with a linearized reflectance map to formulate the shape-from-shading problem. The main idea is to approximate a smooth sur...
CAGD
2011
12 years 11 months ago
2011
This work concerns the approximation of the shape operator of smooth surfaces in R3 from polyhedral surfaces. We introduce two generalized shape operators that are vector-valued l...
SMI
2005
IEEE
14 years 1 months ago
2005
IEEE
A tight estimate on the maximum distance between a subdivision surface and its linear approximation is introduced to guide adaptive subdivision with guaranteed accuracy.
SIAMCOMP
1998
13 years 7 months ago
1998
Motivated by applications in computer graphics, visualization, and scienti c computation, we study the computational complexity of the following problem: Given a set S of n points...