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ICASSP
2011
IEEE
14 years 6 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
2011
IEEE
14 years 6 months ago
Sparse non-negative decomposition of speech power spectra for formant tracking
Many works on speech processing have dealt with auto-regressive (AR) models for spectral envelope and formant frequency estimation, mostly focusing on the estimation of the AR par...
Jean-Louis Durrieu, Jean-Philippe Thiran
CORR
2011
Springer
247views Education» more  CORR 2011»
14 years 6 months ago
The Extraordinary SVD
: We review the singular value decomposition (SVD) and discuss some lesser-known applications of it that we find particularly interesting. We also discuss generalizations of the S...
Carla D. Martin, Mason A. Porter
SIAMMAX
2011
92views more  SIAMMAX 2011»
14 years 5 months ago
A Condition for Convexity of a Product of Positive Definite Quadratic Forms
A sufficient condition for the convexity of a finite product of positive definite quadratic forms is given in terms of the condition numbers of the underlying matrices. When only...
Minghua Lin, Gord Sinnamon
ICCV
2011
IEEE
14 years 3 months ago
Kernel Non-Rigid Structure from Motion
Non-rigid structure from motion (NRSFM) is a difficult, underconstrained problem in computer vision. The standard approach in NRSFM constrains 3D shape deformation using a linear...
Paulo F. U. Gotardo, Aleix M. Martinez