On the design of hierarchical BTC-VQ compression system

被引：6

作者：

Franti, P

Kaukoranta, T

Nevalainen, O

机构：

[1] Department of Computer Science, University of Turku, FIN-20520 Turku

来源：

SIGNAL PROCESSING-IMAGE COMMUNICATION | 1996年 / 8卷 / 06期

基金：

芬兰科学院;

关键词：

image compression; vector quantization; quantization methods; hierarchical decomposition; codebook construction;

D O I：

10.1016/0923-5965(96)00008-2

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In the present paper we study the use of vector quantization in the BTC-VQ image compression system. We propose an inverted order of proceeding in the BTC-VQ algorithm, so that the interaction of coding the bit-plane and the quantization data will be taken into consideration. The quality of the image depends radically on the codebook used in VQ. The use of frequencies in the selection of the initial codebook turns out to be superior to random selection.

引用

页码：551 / 562

页数：12

共 22 条

[1] BTC IMAGE-CODING USING MEDIAN FILTER ROOTS [J].