Title :
Effective channel coding for DCT watermarks
Author :
Pereira, Shelby ; Voloshynovskiy, Sviatoslav ; Pun, Thierry
Author_Institution :
Geneva Univ., Switzerland
Abstract :
We describe effective channel coding strategies which can be used in conjunction with linear programming optimization techniques for the embedding of robust perceptually adaptive DCT domain watermarks. The main contributions lie in the proposal of a coding strategy based on the magnitude of a DCT coefficient, the use of turbo codes for effective error correction, and finally the incorporation of JPEG quantization tables at embedding
Keywords :
adaptive codes; channel coding; copy protection; copyright; data compression; discrete cosine transforms; image coding; linear programming; quantisation (signal); security of data; transform coding; turbo codes; DCT coefficient magnitude; JPEG quantization tables; channel coding; copyright protection; digital watermark; embedded coding; error correction; linear programming; optimization techniques; perceptually adaptive DCT domain watermarks; turbo codes; Channel coding; Discrete cosine transforms; Error correction codes; Frequency; Linear programming; Noise robustness; Proposals; Quantization; Turbo codes; Watermarking;
Conference_Titel :
Image Processing, 2000. Proceedings. 2000 International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-6297-7
DOI :
10.1109/ICIP.2000.899543
