A new algorithm on MPEG-2 target bit-number allocation at scene changes

被引：11

作者：

Luo, LJ

Zou, CR

He, ZY

机构：

[1] Department of Radio Engineering, Southeast University

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY | 1997年 / 7卷 / 05期

关键词：

motion compensation; motion estimation; MPEG; quantization; video coding;

D O I：

10.1109/76.633504

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：

The bit-number allocation strategy of Test Model 5 (TM5) may cause the coding quality to decrease and the buffer to overflow at scene changes, therefore a new algorithm on MPEG-2 target bit-number allocation is proposed in this letter, Here the influence of scene charges on coding quality is analyzed and an approach to improve the coding performance at scene changes is presented to avoid a sharp quality decrease of scene-change frames. Simulation results indicate that this algorithm provides a promising coding quality at scene changes.

引用

页码：815 / 819

页数：5