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ICASSP
2009
IEEE
15 years 8 months ago
A tempering approach for Itakura-Saito non-negative matrix factorization. With application to music transcription
In this paper we are interested in non-negative matrix factorization (NMF) with the Itakura-Saito (IS) divergence. Previous work has demonstrated the relevance of this cost functi...
Nancy Bertin, Cédric Févotte, Roland...
ICASSP
2009
IEEE
15 years 8 months ago
Dense disparity estimation in a multi-view distributed video coding system
Distributed video coding (DVC) is a recent paradigm which aims at transferring part of the coding complexity from the encoder to the decoder. The performance of such a coding sche...
Thomas Maugey, Wided Miled, Béatrice Pesque...
ICASSP
2009
IEEE
15 years 8 months ago
Multi-microphone maximum a posteriori fundamental frequency estimation in the cepstral domain
In this work we derive a new cepstrum based maximum likelihood fundamental frequency estimator that exploits the information of multiple microphones. The new approach results in a...
Timo Gerkmann, Rainer Martin, Derya Dalga
121
Voted
ICASSP
2009
IEEE
15 years 8 months ago
Blind noise variance estimation for OFDMA signals
In this paper, we present two new noise variance estimation methods of OFDMA signals transmitted through an unknown multipath fading channel. We focus on blind estimation as it do...
François-Xavier Socheleau, Dominique Pastor...
ICASSP
2009
IEEE
15 years 8 months ago
Detection of sparse signals under finite-alphabet constraints
In this paper, we solve the problem of detecting the entries of a sparse finite-alphabet signal from a limited amount of data, for instance obtained by compressive sampling. While...
Zhi Tian, Geert Leus, Vincenzo Lottici