5942 search results - page 304 / 1189 » On the Processing of Decimated Signals |
145
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ICASSP
2008
IEEE
16 years 18 days 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-...
143
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ICASSP
2008
IEEE
16 years 18 days 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...
136
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ICASSP
2008
IEEE
16 years 18 days ago
2008
IEEE
We derive an asymptotic Newton algorithm for Quasi Maximum Likelihood estimation of the ICA mixture model, using the ordinary gradient and Hessian. The probabilistic mixture frame...
138
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ICASSP
2008
IEEE
16 years 18 days ago
2008
IEEE
We propose an extension of the recently devised SURE-LET grayscale denoising approach for multichannel images. Assuming additive Gaussian white noise, the unknown linear parameter...
147
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ICASSP
2008
IEEE
16 years 18 days ago
2008
IEEE
Monaural musical sound separation attempts to segregate different instrument lines from single-channel polyphonic music. We propose a system that decomposes an input into timefreq...