Sciweavers

156 search results - page 2 / 32
» Ranked representation of vector fields
Sort
View
ICPR
2008
IEEE
14 years 6 months ago
A local descriptor for finding corresponding points in vector fields
Vector fields may come from video data (via optical flow and tracking), from weather phenomena (e.g., wind speed and direction), and from medical imaging. An important component i...
H. Quynh Dinh, Liefei Xu
VISUALIZATION
1999
IEEE
13 years 9 months ago
Construction of Vector Field Hierarchies
We present a method for the hierarchical representation of vector fields. Our approach is based on iterative refinement using clustering and principal component analysis. The inpu...
Bjørn Heckel, Gunther H. Weber, Bernd Haman...
JCT
2010
85views more  JCT 2010»
12 years 11 months ago
Symmetric bilinear forms over finite fields of even characteristic
Let Sm be the set of symmetric bilinear forms on an m-dimensional vector space over GF(q), where q is a power of two. A subset Y of Sm is called an (m, d)-set if the difference of...
Kai-Uwe Schmidt
IVC
2007
94views more  IVC 2007»
13 years 4 months ago
Vector quantization and fuzzy ranks for image reconstruction
The problem of clustering is often addressed with techniques based on a Voronoi partition of the data space. Vector quantization is based on a similar principle, but it is a diffe...
Stefano Rovetta, Francesco Masulli
IMAMS
2007
180views Mathematics» more  IMAMS 2007»
13 years 6 months ago
Implicit Boundary Control of Vector Field Based Shape Deformations
We present a shape deformation approach which preserves volume, prevents self-intersections and allows for exact control of the deformation impact. The volume preservation and prev...
Wolfram von Funck, Holger Theisel, Hans-Peter Seid...