Title :
Efficient lossless coding scheme for vector quantisation using dynamic index mapping
Author :
Lee, Seung Jun ; Yang, Kyeong Ho ; Kim, Chul Woo ; Lee, Choong Woong
Author_Institution :
Dept. of Electron. Eng., Seoul Nat. Univ., South Korea
fDate :
8/17/1995 12:00:00 AM
Abstract :
The authors propose an efficient lossless coding scheme for vector quantisation (VQ) indices using a dynamic index mapping, which transforms an original index to a new index with a lower entropy. Simulations show that the proposed scheme considerably reduces the average bit rate both in ordinary and hybrid VQ systems for image compression
Keywords :
image coding; vector quantisation; VQ indices; average bit rate reduction; dynamic index mapping; hybrid VQ systems; image compression; lossless coding scheme; vector quantisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19951030
