Jointly optimal region-classified adaptive vector quantization for very low bit rate video coding

被引：4

作者：

Chen, YW

Chen, LG

Chen, MJ

机构：

[1] National Taiwan University,Department of Electrical Engineering

来源：

JOURNAL OF VLSI SIGNAL PROCESSING SYSTEMS FOR SIGNAL IMAGE AND VIDEO TECHNOLOGY | 1997年 / 17卷 / 2-3期

关键词：

D O I：

10.1023/A:1007902922455

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, a video coding algorithm suitable for the very low bit rate video coding system is presented. It takes advantage of the prior knowledge of the image type to segment the image to different regions, then codes each region with different coding criterion and method according to the different importance. An adaptive region-classified vector quantization strategy is exploited in this algorithm also. With segmentation of the frame and high correlation between frames, better codebooks of vector quantization are constructed to improve the quality. According to the simulation results, acceptable quality at about 10 kbits per second can be obtained for the typical test sequences.

引用

页码：189 / 200

页数：12

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