418 search results - page 11 / 84 » Computational Geometry of Contour Extraction |
ICCV
2005
IEEE
14 years 9 months ago
2005
IEEE
In this paper, we address the issue of extracting contour of the object with a specific shape. A hierarchical graphical model is proposed to represent shape variations. A complex ...
CVPR
2011
IEEE
13 years 3 months ago
2011
IEEE
We present novel approaches for fully automated extraction of tree-like tubular structures from 3-D image stacks. A 4-D Open-Curve Active Contour (Snake) model is proposed for sim...
VIS
2004
IEEE
14 years 9 months ago
2004
IEEE
our tree, an abstraction of a scalar field that encodes the nesting relationships of isosurfaces, can be used to accelerate isosurface extraction, to identify important isovalues ...
ACIVS
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. In this paper, we introduce a novel evolution-based segmentation algorithm by using the heat flow analogy, to gain practical advantage. The proposed algorithm consists of...
ISORC
2006
IEEE
14 years 1 months ago
2006
IEEE
In this paper, we propose an approach to collaboratively track motion of a moving target in a wide area utilizing camera-equipped visual sensor networks, which are expected to pla...