Title :
On the duality between distributed source coding and data hiding
Author :
Chou, Jim ; Pradhan, S. Sandeep ; Ramchandran, Kannan
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA
Abstract :
Inspired by a previously proposed constructive framework for the distributed source coding problem, we propose a powerful constructive approach to the watermarking problem, emphasizing the dual roles of "source codes" and "channel codes". In our framework, we explore various source and channel codes to achieve watermarks that are robust to attackers in terms of maximizing the distortion between the corrupted coded-source signal and the original signal while holding the distortion between the coded-source signal and the original signal constant. Simulations show that performance gains are accredited to a careful choice of source and channel codes.
Keywords :
AWGN; channel coding; data encapsulation; distributed processing; image coding; quantisation (signal); security of data; source coding; trellis coded modulation; AWGN; Lloyd-Max quantizer; TCM; additive white Gaussian noise; channel codes; corrupted coded-source signal; data hiding; distortion; distributed source coding; distributed source coding using syndromes; image coding; original signal; performance; simulations; source codes; trellis-coded-modulation; trellis-coded-quantizer; watermarking problem; AWGN; Data encapsulation; Decoding; Distortion; Engineering profession; Indexing; Performance gain; Robustness; Source coding; Watermarking;
Conference_Titel :
Signals, Systems, and Computers, 1999. Conference Record of the Thirty-Third Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-5700-0
DOI :
10.1109/ACSSC.1999.832000