COMPGEOM
2003
ACM
13 years 9 months ago
2003
ACM
Given a Morse function over a 2-manifold with or without boundary, the Reeb graph is obtained by contracting the connected components of the level sets to points. We prove tight u...
ICCV
2003
IEEE
13 years 9 months ago
2003
IEEE
We present a novel non-parametric unsupervised segmentation algorithm based on Region Competition [21]; but implemented within a Level Sets framework [11]. The key novelty of the ...
COMPGEOM
2004
ACM
13 years 10 months ago
2004
ACM
The Reeb graph is a useful tool in visualizing real-valued data obtained from computational simulations of physical processes. We characterize the evolution of the Reeb graph of a...
SMI
2006
IEEE
13 years 10 months ago
2006
IEEE
We study the evolution of T-spline level sets (i.e, implicitly defined T-spline curves and surfaces). The use of T-splines leads to a sparse representation of the geometry and al...
ROBOCOMM
2007
IEEE
13 years 10 months ago
2007
IEEE
—Path planning for mobile robots is a well researched problem for over three decades. In this paper, we test and evaluate a new approach based on Shi and Karl Level Sets for mobi...
ICAPR
2009
Springer
13 years 11 months ago
2009
Springer
Morphological operators designed for grey-scale functions process every points of the space identically whatever their luminance. In many situations however, it is interesting to ...
CVPR
2010
IEEE
14 years 27 days ago
2010
IEEE
We present a region-based active contour detection algorithm
for objects that exhibit relatively homogeneous photometric
characteristics (e.g. smooth color or gray levels),
embe...
ICIP
2002
IEEE
14 years 6 months ago
2002
IEEE
In this work, we study the extraction of semantic objects using morphological tools. We decompose the image into its level sets and level lines (the borders of the level sets). Sp...
ICCV
2007
IEEE
14 years 6 months ago
2007
IEEE
Particle filters encode a time-evolving probability density by maintaining a random sample from it. Level sets represent closed curves as zero crossings of functions of two variab...
CVPR
2004
IEEE
14 years 6 months ago
2004
IEEE
In this paper a method for fitting open surfaces to an unorganized set of data points is presented using a level set representation of the surface. This is done by tracking a curv...