112 search results - page 7 / 23 » On Sparsity and Overcompleteness in Image Models |
CVPR
2010
IEEE
14 years 4 months ago
2010
IEEE
We propose a new scheme to estimate image bias field through introducing two sparsity constraints. One is that the bias-free image has concise representation with image gradients o...
CVPR
2011
IEEE
13 years 3 months ago
2011
IEEE
We propose to detect abnormal events via a sparse reconstruction over the normal bases. Given an over-complete normal basis set (e.g., an image sequence or a collection of local s...
CVPR
2010
IEEE
14 years 3 months ago
2010
IEEE
Automatically assigning relevant text keywords to images is an important problem. Many algorithms have been proposed in the past decade and achieved good performance. Efforts have...
ISBI
2009
IEEE
14 years 2 months ago
2009
IEEE
We present a numerical framework for Fluorescence Diffuse Optical Tomography (fDOT) that combines a forward model together with an iterative reconstruction procedure. Using rapid ...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
Most bioimaging modalities rely on indirect measurements of the quantity under investigation. The image is obtained as the result of an optimization problem involving a physical m...