778 search results - page 5 / 156 » Vector field contours |
411
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Dataset
Active contours, or snakes, are computer-generated curves that move within images to find object boundaries. Its 3D version is often known as deformable models or active surfaces ...
COMGEO
2010
ACM
14 years 10 months ago
2010
ACM
our tree is an abstraction of a scalar field that encodes the nesting relationships of isosurfaces. We show how to use the contour tree to represent individual contours of a scala...
ICCV
2001
IEEE
15 years 11 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...
SMI
2005
IEEE
15 years 3 months ago
2005
IEEE
For time-dependent scalar fields, one is often interested in topology changes of contours in time. In this paper, we focus on describing how contours split and merge over a certa...
151
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CGF
2010
14 years 4 months ago
2010
This paper presents an approach to a time-dependent variant of the concept of vector field topology for 2-D vector fields. Vector field topology is defined for steady vector field...