1391 search results - page 14 / 279 » Optimally Sparse Frames |
125
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ICCS
2007
Springer
15 years 10 months ago
2007
Springer
Abstract. Hierarchical (H)-matrices approximate full or sparse matrices using a hierarchical data sparse format. The corresponding H-matrix arithmetic reduces the time complexity o...
136
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FOCS
2008
IEEE
15 years 10 months ago
2008
IEEE
Abstract— We consider the approximate sparse recovery problem, where the goal is to (approximately) recover a highdimensional vector x ∈ Rn from its lower-dimensional sketch Ax...
118
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CVPR
2004
IEEE
16 years 6 months ago
2004
IEEE
The Bounded Hough Transform is introduced to track objects in a sequence of sparse range images. The method is based upon a variation of the General Hough Transform that exploits ...
141
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ICML
2007
IEEE
16 years 4 months ago
2007
IEEE
This paper introduces a new problem for which machine-learning tools may make an impact. The problem considered is termed "compressive sensing", in which a real signal o...
119
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CVPR
2010
IEEE
16 years 2 days ago
2010
IEEE
We present an automatic and efficient method to extract spatio-temporal human volumes from video, which combines top-down model-based and bottom-up appearancebased approaches. Fr...