30 search results - page 4 / 6 » Multi-feature vector flow for active contour tracking |
ICIP
2006
IEEE
14 years 9 months ago
2006
IEEE
Snakes, or active contours, have been widely used in image processing applications. Typical roadblocks to consistent performance include limited capture range, noise sensitivity, ...
ICPR
2008
IEEE
14 years 9 months ago
2008
IEEE
Active contours were proposed by Kass et al. as a way to represent the contours of an image. Although the method is simple, one of its shortcomings is its inability to converge in...
EMMCVPR
2003
Springer
14 years 1 months ago
2003
Springer
Poor convergence to concave shapes is a main limitation of snakes as a standard segmentation and shape modelling technique. The gradient of the external energy of the snake represe...
ICPR
2008
IEEE
14 years 9 months ago
2008
IEEE
Learning typical motion patterns or activities from videos of crowded scenes is an important visual surveillance problem. To detect typical motion patterns in crowded scenarios, w...
ICCV
2001
IEEE
14 years 9 months ago
2001
IEEE
Several geometric active contour models have been proposed for segmentation in computer vision. The essential idea is to evolve a curve (in 2D) or a surface (in 3D) under constrai...