602 search results - page 5 / 121 » gradient vector flow |
SGP
2007
14 years 6 days ago
2007
Geometric flows are ubiquitous in mesh processing. Curve and surface evolutions based on functional minimization have been used in the context of surface diffusion, denoising, sha...
ICPR
2004
IEEE
14 years 11 months ago
2004
IEEE
In this paper, we develop a new method for recovering and smoothing fields of surface normals in shape-fromshading. We show how transform the problem of recovering surface normals...
JMIV
2006
13 years 9 months ago
2006
In this paper, we propose to focus on the segmentation of vectorial features (e.g. vector fields or color intensity) using region-based active contours. We search for a domain that...
ICPR
2008
IEEE
14 years 11 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
2001
Springer
14 years 2 months ago
2001
Springer
A number of geometric active contour and surface models have been proposed for shape segmentation in the literature. The essential idea is to evolve a curve (in 2D) or a surface (i...