Sciweavers

282 search results - page 4 / 57
» The Methods of Approximation and Lifting in Real Computation
Sort
View
JVCIR
2010
128views more  JVCIR 2010»
13 years 6 months ago
Depth and depth-color coding using shape-adaptive wavelets
We present a novel depth and depth-color codec aimed at free-viewpoint 3D-TV. The proposed codec uses a shape-adaptive wavelet transform and an explicit encoding of the locations ...
Matthieu Maitre, Minh N. Do
SIGMOD
1999
ACM
181views Database» more  SIGMOD 1999»
13 years 12 months ago
Approximate Computation of Multidimensional Aggregates of Sparse Data Using Wavelets
Computing multidimensional aggregates in high dimensions is a performance bottleneck for many OLAP applications. Obtaining the exact answer to an aggregation query can be prohibit...
Jeffrey Scott Vitter, Min Wang
CGF
2008
137views more  CGF 2008»
13 years 7 months ago
Real-Time Indirect Illumination and Soft Shadows in Dynamic Scenes Using Spherical Lights
We present a method for rendering approximate soft shadows and diffuse indirect illumination in dynamic scenes. The proposed method approximates the original scene geometry with a...
P. Guerrero, Stefan Jeschke, Michael Wimmer
ISSAC
2007
Springer
131views Mathematics» more  ISSAC 2007»
14 years 1 months ago
Some recent progress in exact linear algebra and related questions
We describe some major recent progress in exact and symbolic linear algebra. These advances concern the improvement of complexity estimates for fundamental problems such as linear...
Gilles Villard
ICIP
2001
IEEE
14 years 9 months ago
DWT based non-parametric texture modeling
We propose a non-parametric texture modeling and synthesis technique based on the integer version of the Discrete Wavelet Transform (DWT). The successive levels of the DWT pyramid...
Gloria Menegaz