A fast binary motion estimation algorithm for MPEG-4 shape coding

被引：3
|
作者：
Tsai, TH [1 ]
Chen, CP [1 ]
机构：
[1] Natl Cent Univ, Dept Elect Engn, Taipei 10617, Taiwan
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY | 2004年 / 14卷 / 06期
关键词：
binary motion estimation (BME); MPEG-4; shape coding; video object plane (VOP);
D O I：
10.1109/TCSVT.2004.828318
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：
This paper presents a fast binary motion estimation (BME) algorithm using diamond search pattern for MPEG-4 shape coding, which is the key technology for supporting the content-based video coding. Based on the properties of binary shape information, a boundary mask for efficient search positions can be generated. Therefore, a large number of search points can be skipped. Simulation results show that our algorithm combined with diamond shaped zones takes equal bit rate in the same quality but reduces the number of search points marvelously in BME to 0.6% compared with full search algorithm, which is described in MPEG-4 verification mode. The proposed algorithm will reduce computational complexity of shape coding significantly and be suitable for real-time software and hardware applications of MPEG-4 shape coding.
引用
收藏
页码：908 / 913
页数：6
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