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» Computationally efficient regularized acoustic imaging
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ICASSP
2011
IEEE
12 years 8 months ago
Computationally efficient regularized acoustic imaging
Sparse recovery techniques have been shown to produce very accurate acoustic images, significantly outperforming traditional deconvolution approaches. However, so far these propo...
Flavio P. Ribeiro, Vitor H. Nascimento
ICASSP
2011
IEEE
12 years 8 months ago
A fast transform for acoustic imaging with separable arrays
Acoustic imaging is a computationally intensive and ill-conditioned inverse problem, which involves estimating high resolution source distributions with large microphone arrays. I...
Flavio P. Ribeiro, Vitor H. Nascimento
ICASSP
2008
IEEE
13 years 11 months ago
Computationally efficient equalization of room impulse responses robust to system estimation errors
Equalization techniques for room impulse responses (RIRs) are important in acoustic signal processing applications such as speech dereverberation. In practice, only approximate es...
Wancheng Zhang, Nikolay D. Gaubitch, Patrick A. Na...
MICCAI
2010
Springer
13 years 2 months ago
Efficient MR Image Reconstruction for Compressed MR Imaging
In this paper, we propose an efficient algorithm for MR image reconstruction. The algorithm minimizes a linear combination of three terms corresponding to a least square data fitti...
Junzhou Huang, Shaoting Zhang, Dimitris N. Metaxas
TASLP
2010
150views more  TASLP 2010»
12 years 11 months ago
Diffuse Reverberation Model for Efficient Image-Source Simulation of Room Impulse Responses
Abstract-- In many research fields of engineering and acoustics, the image-source model represents one of the most popular tools for the simulation of sound fields in virtual rever...
Eric A. Lehmann, Anders M. Johansson