507 search results - page 1 / 102 » How well can we estimate a sparse vector |
CORR
2011
Springer
12 years 11 months ago
2011
Springer
The estimation of a sparse vector in the linear model is a fundamental problem in signal processing, statistics, and compressive sensing. This paper establishes a lower bound on t...
HAPTICS
2003
IEEE
13 years 10 months ago
2003
IEEE
We investigated people’s ability to report the shape and scale of a spatial layout after sparse contact, without vision. We propose that the initial representation of sparsely c...
ICIP
2004
IEEE
14 years 6 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...
NIPS
2008
13 years 6 months ago
2008
We introduce a novel framework for estimating vector fields using sparse basis field expansions (S-FLEX). The notion of basis fields, which are an extension of scalar basis functi...
ICASSP
2010
IEEE
13 years 4 months ago
2010
IEEE
We consider the estimation of a sparse parameter vector from measurements corrupted by white Gaussian noise. Our focus is on unbiased estimation as a setting under which the difï¬...