602 search results - page 29 / 121 » gradient vector flow |
TITB
2010
13 years 4 months ago
2010
An ECG signal processing method with quad level vector (QLV) is proposed for the ECG holter system. The ECG processing consists of the compression flow and the classification flow,...
FGR
1998
IEEE
14 years 2 months ago
1998
IEEE
Automated recognition of facial expression is an important addition to computer vision research because of its relevance to the study of psychological phenomena and the developmen...
VIS
2004
IEEE
14 years 11 months ago
2004
IEEE
We present a novel multiscale approach for flow visualization. We define a local alignment tensor that encodes a measure for alignment to the direction of a given flow field. This...
CHI
2002
ACM
14 years 10 months ago
2002
ACM
Flow visualization in 3D is challenging due to perceptual problems such as occlusion, lack of directional cues, lack of depth cues, and visual complexity. In this paper we present...
VISSYM
2004
13 years 11 months ago
2004
Isosurfacing, by itself, is a common visualization technique for investigating 3D vector fields. Applying texturebased flow visualization techniques to isosurfaces provides engine...