428 search results - page 38 / 86 » Econometric methods of signal extraction |
SSWMC
2004
14 years 11 months ago
2004
A possible solution to the difficult problem of geometrical distortion of watermarked images in a blind watermarking scenario is to use a template grid in the autocorrelation func...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
The scarcity of available multi-track recordings constitutes a severe constraint on the training of probabilistic models for voice extraction from polyphonic music. We propose a n...
ICASSP
2009
IEEE
15 years 4 months ago
2009
IEEE
Background subtraction is a crucial step in many automatic video content analysis applications. While numerous acceptable techniques have been proposed so far for background extra...
ICASSP
2008
IEEE
15 years 4 months ago
2008
IEEE
We propose a sparse non-negative image coding based on simulated annealing and matrix pseudo-inversion. We show that sparsity and non-negativity are both important to obtain part-...
ICASSP
2008
IEEE
15 years 4 months ago
2008
IEEE
We present a novel directionally adaptive image interpolation based on a multiple-direction wavelet transform, called directionlets. The algorithm uses directionlets to efficient...