452 search results - page 86 / 91 » PDE-based fast local level set method |
CVPR
2005
IEEE
15 years 26 days ago
2005
IEEE
This paper presents a novel 3D deformable surface that we call an active polyhedron. Rooted in surface evolution theory, an active polyhedron is a polyhedral surface whose vertice...
VIS
2004
IEEE
15 years 2 days 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...
IPMI
2003
Springer
14 years 11 months ago
2003
Springer
Active Shape Models (ASM) have proven to be an effective approach for image segmentation. In some applications, however, the linear model of gray level appearance around a contour ...
INFOCOM
2009
IEEE
14 years 5 months ago
2009
IEEE
—Detecting event frontline or boundary sensors in a complex sensor network environment is one of the critical problems for sensor network applications. In this paper, we propose ...
VISUALIZATION
2003
IEEE
14 years 4 months ago
2003
IEEE
This paper introduces a method for converting an image or volume sampled on a regular grid into a space-efficient irregular point hierarchy. The conversion process retains the ori...