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ICASSP
2009
IEEE
14 years 6 months ago
Underdetermined audio source separation from anechoic mixtures with long time delay
We propose a technique to separate audio sources from their anechoic mixtures with long delay in an underdetermined setting (i.e., the number of audio sensors is smaller than that...
Namgook Cho, C.-C. Jay Kuo
ICASSP
2009
IEEE
14 years 6 months ago
Adaptive distributed transforms for irregularly sampled Wireless Sensor Networks
We develop energy-efficient, adaptive distributed transforms for data gathering in wireless sensor networks. In particular, we consider a class of unidirectional transforms that ...
Godwin Shen, Sunil K. Narang, Antonio Ortega
ICASSP
2009
IEEE
14 years 6 months ago
Single and multichannel sampling of bilevel polygons using exponential splines
In this paper we present a novel approach for sampling and reconstructing any K-sided convex and bilevel polygon with the use of exponential splines [1]. It will be shown that wit...
Hojjat Akhondi Asl, Pier Luigi Dragotti
ICASSP
2009
IEEE
14 years 6 months ago
Compressive sampling of pulse trains: Spread the spectrum!
In this paper we consider the problem of sampling far below the Nyquist rate signals that are sparse linear superpositions of shifts of a known, potentially wide-band, pulse. This...
Farid M. Naini, Rémi Gribonval, Laurent Jac...
ICASSP
2009
IEEE
14 years 6 months ago
Affine invariant features and their application to speech recognition
This paper proposes a set of affine invariant features (AIFs) for sequence data. The proposed AIFs can be calculated directly from the sequence data, and their invariance to af...
Yu Qiao, Masayuki Suzuki, Nobuaki Minematsu
ICASSP
2009
IEEE
14 years 6 months ago
A framework for distributed multimedia stream mining systems using coalition-based foresighted strategies
In this paper, we propose a distributed solution to the problem of configuring classifier trees in distributed stream mining systems. The configuration involves selecting appro...
Hyunggon Park, Deepak S. Turaga, Olivier Verscheur...
ICASSP
2009
IEEE
14 years 6 months ago
A low-complexity spectro-temporal based perceptual model
The use of psychoacoustical masking models for audio coding applications has been wide spread over the past decades. In such applications, it is typically assumed that the origina...
Cees Taal, Richard Heusdens
ICASSP
2009
IEEE
14 years 6 months ago
Audio classification from time-frequency texture
Time-frequency representations of audio signals often resemble texture images. This paper derives a simple audio classification algorithm based on treating sound spectrograms as ...
Guoshen Yu, Jean-Jacques E. Slotine
ICASSP
2009
IEEE
14 years 6 months ago
Using the scaling ambiguity for filter shortening in convolutive blind source separation
In this paper, we propose to use the scaling ambiguity of convolutive blind source separation for shortening the unmixing filters. An often used approach for separating convoluti...
Radoslaw Mazur, Alfred Mertins
ICASSP
2009
IEEE
14 years 6 months ago
Design of oversampled DFT modulated filter banks optimized for acoustic echo cancellation
This paper describes a method for designing oversampled DFT filter banks (FB) optimized for subband acoustic echo cancellation (AEC). For this application, the design requirements...
Qin Li, Wei-Ge Chen, Chao He, Henrique S. Malvar