Sciweavers

ICASSP
2011
IEEE
13 years 3 months ago
Stochastic optimization based on the Laplace transform order with applications to precoder designs
Stochastic optimization arising from precoding in a multi-antenna fading channel with channel mean feedback to maximize data rates is important but challenging. The use of relayin...
Minhua Ding, Keith Q. T. Zhang
ICASSP
2011
IEEE
13 years 3 months ago
Adaptive scalable layer filtering process for video scheduling over wireless networks based on MAC buffer management
In this paper, the problem of scalable video delivery over a timevarying wireless channel is considered. Packet scheduling and buffer management in both Application and Medium Acc...
Nesrine Changuel, Nicholas Mastronarde, Mihaela va...
ICASSP
2011
IEEE
13 years 3 months ago
Gammatone sub-band magnitude-domain dereverberation for ASR
We present an algorithm for dereverberation of speech signals for automatic speech recognition (ASR) applications. Often ASR systems are presented with speech that has been record...
Kshitiz Kumar, Rita Singh, Bhiksha Raj, Richard M....
ICASSP
2011
IEEE
13 years 3 months ago
Language-independent constrained cepstral features for speaker recognition
Constrained cepstral systems, which select frames to match various linguistic “constraints” in enrollment and test, have shown significant improvements for speaker verificatio...
Elizabeth Shriberg, Andreas Stolcke
ICASSP
2011
IEEE
13 years 3 months ago
Subspace-based direction finding using transmit energy focusing in MIMO radar with colocated antennas
In this paper, we consider the problem of direction finding in multiple-input multiple-output (MIMO) radar based on focusing the transmitted pulse energy within certain spatial s...
Aboulnasr Hassanien, Sergiy A. Vorobyov
ICASSP
2011
IEEE
13 years 3 months ago
Reproduction of independent narrowband soundfields in a multizone surround system and its extension to speech signal sources
While higher order ambisonic approaches can be used to generate multiple zone soundfields, this paper adopts a Least Squares matching approach which provides a more flexible formu...
Nasim Radmanesh, Ian S. Burnett
ICASSP
2011
IEEE
13 years 3 months ago
A knowledge-based algorithm to remove blocking artifacts in skin images for forensic analysis
Identifying criminals and victims in evidence images, where their faces are covered or obstructed, is a challenging task. In the legal case, United States v. Michael Joseph Pepe (...
Chaoying Tang, Adams Wai-Kin Kong, Noah Craft
ICASSP
2011
IEEE
13 years 3 months ago
Wavelet footprints for detection and sorting of extracellular neural action potentials
Spike detection and sorting is a fundamental step in the analysis of extracellular neural recording. Here, we propose a combined spike detection-feature extraction algorithm that ...
Ki Yong Kwon, Karim G. Oweiss
ICASSP
2011
IEEE
13 years 3 months ago
Semi-automatic 2D to 3D image conversion using a hybrid Random Walks and graph cuts based approach
In this paper, we present a semi-automated method for converting conventional 2D images to stereoscopic 3D. User-defined strokes that correspond to a rough estimate of the depth ...
Raymond Phan, Richard Rzeszutek, Dimitrios Androut...
ICASSP
2011
IEEE
13 years 3 months ago
Fourier expansion of hammerstein models for nonlinear acoustic system identification
We consider the task of acoustic system identification, where the input signal undergoes a memoryless nonlinear transformation before convolving with an unknown linear system. We...
Sarmad Malik, Gerald Enzner