173 search results - page 9 / 35 » An Alternating Minimization Method for Sparse Channel Estima... |
ICIP
2009
IEEE
14 years 8 months ago
2009
IEEE
We propose a new color de-quantizing method for paletted images based on maximizing the sparseness of the overcomplete wavelet analysis of the estimation within the consistency se...
EJASP
2010
13 years 2 months ago
2010
The number of active users, their timing offsets, and their (possibly dispersive) channels with the access point are decisive parameters for wireless code division multiple access...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
—This paper deals with optimized training sequences to estimate multiple-input multiple-output orthogonal frequencydivision multiplexing (MIMO-OFDM) channel states in the presenc...
ICASSP
2010
IEEE
13 years 6 months ago
2010
IEEE
The sliding window approach is the most widely used technique to detect faces in an image. Usually a classifier is applied on a regular grid and to speed up the scanning, the gri...
ICML
2010
IEEE
13 years 8 months ago
2010
IEEE
We develop a penalized kernel smoothing method for the problem of selecting nonzero elements of the conditional precision matrix, known as conditional covariance selection. This p...