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139
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ICIP
2010
IEEE
15 years 1 months ago
Semi-automatic motion based segmentation using long term motion trajectories
Semi-automated object segmentation is an important step in the cinema post-production workflow. We propose a dense motion based segmentation process that employs sparse feature ba...
Gary Baugh, Anil C. Kokaram
114
Voted
ICASSP
2011
IEEE
14 years 7 months ago
Local probability distribution of natural signals in sparse domains
—In this paper we investigate the local probability density function (pdf) of natural signals in sparse domains. The statistical properties of natural signals are characterized m...
Hossein Rabbani, Saeed Gazor
154
Voted
ICASSP
2011
IEEE
14 years 7 months ago
Denoising of image patches via sparse representations with learned statistical dependencies
We address the problem of denoising for image patches. The approach taken is based on Bayesian modeling of sparse representations, which takes into account dependencies between th...
Tomer Faktor, Yonina C. Eldar, Michael Elad
60
Voted
ICIP
2003
IEEE
16 years 5 months ago
Estimation error bounds for denoising by sparse approximation
Alyson K. Fletcher, Kannan Ramchandran