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ICASSP
2009
IEEE
14 years 7 months ago
Sparse decomposition of mixed audio signals by basis pursuit with autoregressive models
We develop a framework to detect when certain sounds are present in a mixed audio signal. We focus on the regime where out of a large number of possible sounds, a small but unknow...
Youngmin Cho, Lawrence K. Saul
ICASSP
2009
IEEE
14 years 7 months ago
Optimal parameter estimation for model-based quantization
We address optimal model estimation for model-based vector quantization for both the constrained resolution (CR) and constrained entropy (CE) cases. To this purpose we derive unde...
Alexey Ozerov, W. Bastiaan Kleijn
ICASSP
2009
IEEE
14 years 7 months ago
THE SRI NIST 2008 speaker recognition evaluation system
The SRI speaker recognition system for the 2008 NIST speaker recognition evaluation (SRE) incorporates a variety of models and features, both cepstral and stylistic. We highlight ...
Sachin S. Kajarekar, Nicolas Scheffer, Martin Grac...
ICASSP
2009
IEEE
14 years 7 months ago
Plane-wave decomposition of a sound scene using a cylindrical microphone array
The analysis for microphone arrays formed by mounting microphones on a sound-hard spherical or cylindrical baf e is typically performed using a decomposition of the sound field i...
Dmitry N. Zotkin, Ramani Duraiswami
ICASSP
2009
IEEE
14 years 7 months ago
Cross-layer optimization of wireless fading ad-hoc networks
This paper introduces an algorithm to approximately find optimal wireless networks in presence of fading. Joint optimization of application level rates, routes, link capacities, ...
Nikolaos Gatsis, Alejandro Ribeiro, Georgios B. Gi...
ICASSP
2009
IEEE
14 years 7 months ago
Joint MIMO radar waveform and receiving filter optimization
Abstract—The concept of MIMO (multiple-input multipleoutput) radar allows each transmitting antenna element to transmit an arbitrary waveform. This provides extra degrees of free...
Chun-Yang Chen, P. P. Vaidyanathan
ICASSP
2009
IEEE
14 years 7 months ago
Detecting real life anger
Acoustic anger detection in voice portals can help to enhance human computer interaction. A comprehensive voice portal data collection has been carried out and gives new insight o...
Felix Burkhardt, Tim Polzehl, Joachim Stegmann, Fl...
ICASSP
2009
IEEE
14 years 7 months ago
People location and orientation tracking in multiple views
This paper presents a multi-view approach to the tracking of people location and orientation. To achieve efficient and accurate likelihood evaluation, a novel likelihood computat...
Huan Jin, Gang Qian
ICASSP
2009
IEEE
14 years 7 months ago
On robustness of coupled adaptive filters
We provide a time domain analysis of the robustness and stability performance for coupled adaptive algorithms of gradient type. The considered coupling may occur inherently as wel...
Robert Dallinger, Marjus Rupp
ICASSP
2009
IEEE
14 years 7 months ago
Motion-based object segmentation using local background sprites
It is well known that video material with a static background allows easier segmentation than that with a moving background. One approach to segmentation of sequences with a movin...
Andreas Krutz, Alexander Glantz, Thilo Borgmann, M...