121 search results - page 8 / 25 » Estimating Model Parameters and Boundaries By Minimizing a J... |
TMI
2008
13 years 6 months ago
2008
Abstract--Voxel-based reconstructions in diffuse optical tomography (DOT) using a quadratic regularization functional tend to produce very smooth images due to the attenuation of h...
PAMI
2011
13 years 1 months ago
2011
— The accurate detection of object boundaries via active contours is an ongoing research topic in computer vision. Most active contours converge towards some desired contour by m...
ICIP
2002
IEEE
14 years 8 months ago
2002
IEEE
In this paper, we address the issue of joint space-time segmentation of image sequences. Typical approaches to such segmentation consider two image frames at a time, and perform t...
ICIP
2008
IEEE
14 years 8 months ago
2008
IEEE
We propose an approach for non-rigid tracking that represents objects by their set of distribution parameters. Compared to joint histogram representations, a set of parameters suc...
SODA
2010
ACM
14 years 4 months ago
2010
ACM
We consider a robust model proposed by Scarf, 1958, for stochastic optimization when only the marginal probabilities of (binary) random variables are given, and the correlation be...