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ICIP
2002
IEEE
14 years 11 months ago
Semi-fragile image authentication using generic wavelet domain features and ECC
In this paper we present a generic content-based solution targeting at authenticating image in a semi-fragile way, which integrates watermarking-based approach with signature-base...
Qibin Sun, Shih-Fu Chang
ISCAS
1993
IEEE
115views Hardware» more  ISCAS 1993»
14 years 2 months ago
Improved Chen-Smith image coder
An image compression system based on transform coding and zonal sampling is presented. It is based on the wellknown Chen-Smith coder, but with an improved technique for transform ...
Eduardo M. Rubino, Henrique S. Malvar, Ricardo L. ...
ISITA
2010
13 years 8 months ago
Spectral entropy-based bit allocation
In transform-based compression schemes, the task of choosing, quantizing, and coding the coefficients that best represent a signal is of prime importance. As a step in this directi...
Malavika Bhaskaranand, Jerry D. Gibson
ICIP
2008
IEEE
14 years 11 months ago
Localization of sparse image tampering via random projections
Hashes can be used to provide authentication of multimedia contents. In the case of images, a hash can be used to detect whether the data has been modified in an illegitimate way....
Marco Tagliasacchi, Giuseppe Valenzise, Stefano Tu...
INFOCOM
2003
IEEE
14 years 3 months ago
A Distributed and Adaptive Signal Processing Approach to Reducing Energy Consumption in Sensor Networks
— We propose a novel approach to reducing energy consumption in sensor networks using a distributed adaptive signal processing framework and efficient algorithm 1 . While the to...
Jim Chou, Dragan Petrovic, Kannan Ramchandran