Title :
The index entropy in mismatched lossy source coding
Author_Institution :
Dept. of Electr. Eng.-Syst., Tel Aviv Univ., Israel
Abstract :
If a random codebook for lossy source coding is generated by a non-optimum reproduction distribution Q, then the entropy of the index of the D-matching codeword is reduced by conditioning on the codebook: the number of bits saved is equal to the divergence between the “favorite type” in the codebook and the generating distribution Q
Keywords :
entropy codes; probability; source coding; D-matching codeword; entropy coding; favorite type distribution; generating distribution; index entropy; mismatched lossy source coding; non-optimum reproduction distribution; random codebook; Convolution; Distortion measurement; Entropy coding; Frequency; H infinity control; Mutual information; Random number generation; Random variables; Rate-distortion; Source coding;
Conference_Titel :
Information Theory, 2000. Proceedings. IEEE International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
0-7803-5857-0
DOI :
10.1109/ISIT.2000.866416
