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ICASSP
2009
IEEE
16 years 1 months ago
Complete characterization of perfectly secure stego-systems with mutually independent embedding operation
Without any assumption on the cover source, this paper presents a complete characterization of all perfectly secure stego-systems that employ mutually independent embedding operat...
Tomás Filler, Jessica J. Fridrich
ICASSP
2009
IEEE
16 years 1 months ago
Applying improved spectral modeling for High Quality voice conversion
In this work, accurate spectral envelope estimation is applied to Voice Conversion in order to achieve High-Quality timbre conversion. True-Envelope based estimators allow model o...
Fernando Villavicencio, Axel Röbel, Xavier Ro...
ICASSP
2009
IEEE
16 years 1 months ago
Transceiver design with vector perturbation technique and iterative power loading
— In this paper we consider the optimization of transceivers which use the nonlinear vector perturbation technique at the transmitter. Since the perturbation vector can be almost...
Ching-Chih Weng, P. P. Vaidyanathan
ICASSP
2009
IEEE
16 years 1 months ago
View-invariant tensor null-space representation for multiple motion trajectory retrieval and classification
In this paper, we propose a novel general framework for tensor based null space affine invariants, namely, tensor null space invariants (TNSI) with a linear classifier for high ...
Xu Chen, Dan Schonfeld, Ashfaq Khokhar
ICASSP
2009
IEEE
16 years 1 months ago
High-rate distributed multi-source cooperation using complex field coding
A multisource cooperative protocol is developed capable of achieving diversity order up to the number of cooperating users at a high throughput. In this design each source jointly...
Alfonso Cano Pleite, Jesús Gómez-Vil...