A New Index Compression Algorithm for Efficient VQ Encoding of Images

摘要

In this paper, a new index compression al-gorithm is proposed for efficient VQ coding of images. The proposed algorithm tries to exploit the high correlation be-tween neighboring image blocks in the VQ index domain in order to achieve further compression. Simulation results show that the proposed scheme can achieve 40% bit-rate reduction without introducing any extra coding error when compared with a standard VQ system.