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» A geometric approach to spectral subtraction
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GRAPHICSINTERFACE
2007
13 years 8 months ago
Spectral graph-theoretic approach to 3D mesh watermarking
We propose a robust and imperceptible spectral watermarking method for high rate embedding of a watermark into 3D polygonal meshes. Our approach consists of four main steps: (1) t...
Emad E. Abdallah, A. Ben Hamza, Prabir Bhattachary...
ISCAS
2008
IEEE
114views Hardware» more  ISCAS 2008»
14 years 1 months ago
Multimicrophone speech dereverberation using spatiotemporal and spectral processing
— Speech signals acquired in a reverberant room with microphones positioned at a distance from the talker are degraded in quality due to reverberation and measurement noise. Ther...
Nikolay D. Gaubitch, Emanuel A. P. Habets, Patrick...
SIAMMAX
2010
123views more  SIAMMAX 2010»
13 years 2 months ago
Joint Spectral Characteristics of Matrices: A Conic Programming Approach
We propose a new approach to estimate the joint spectral radius and the joint spectral subradius of an arbitrary set of matrices. We first restrict our attention to matrices that ...
Vladimir Protasov, Raphaël M. Jungers, Vincen...
CVPR
2008
IEEE
14 years 9 months ago
What do color changes reveal about an outdoor scene?
In an extended image sequence of an outdoor scene, one observes changes in color induced by variations in the spectral composition of daylight. This paper proposes a model for the...
Kalyan Sunkavalli, Fabiano Romeiro, Wojciech Matus...
ICASSP
2010
IEEE
13 years 5 months ago
Speech enhancement with sparse coding in learned dictionaries
The enhancement of speech degraded by non-stationary interferers is a highly relevant and difficult task of many signal processing applications. We present a monaural speech enhan...
Christian D. Sigg, Tomas Dikk, Joachim M. Buhmann