1582 search results - page 47 / 317 » On sparse signal representations |
ICASSP
2009
IEEE
14 years 9 months ago
2009
IEEE
This paper studies compressed sensing for the recovery of non-negative sparse vectors from a smaller number of measurements than the ambient dimension of the unknown vector. We fo...
104
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Publication
When appearance variation of object and its background, partial occlusion or deterioration in object
images occurs, most existing visual tracking methods tend to fail in tracking ...
IJCNN
2007
IEEE
15 years 6 months ago
2007
IEEE
— We show that independent component analysis (ICA) can be used to find distributed representations for words that can be further processed by thresholding to produce sparse rep...
ISBI
2008
IEEE
16 years 17 days ago
2008
IEEE
In limited data tomography, with applications such as electron microscopy and medical imaging, the scanning views are within an angular range that is often both limited and sparse...
103
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ICIP
2004
IEEE
16 years 1 months ago
2004
IEEE
We present an approach to estimate the poses of human heads in natural scenes. The essential features for estimating the head pose are the positions of the prominent facial featur...