Bandwidth-rate-distortion optimized motion estimation

Author

Tai, Wei-Cheng ; Li, Gwo-Long ; Chang, Tian-Sheuan

Author_Institution

Inst. of Electron. Eng., Nat. Chiao-Tung Univ., Hsinchu, Taiwan

fYear

2009

fDate

June 28 2009-July 3 2009

Firstpage

161

Lastpage

164

Abstract

Motion estimation process is the most computational and memory intensive component in video encoders. However, traditional motion estimation algorithms focus on rate and distortion performance and do not take memory bandwidth into consideration. As a result, its performance will be degraded under bandwidth constraint environment. In this paper, a bandwidth-rate-distortion optimized motion estimation algorithm is introduced to solve the above issue. Simulation results show that the proposed method could achieve similar performance as the bandwidth unconstrained method with up to 70% bandwidth saving.

Keywords

motion estimation; video coding; bandwidth saving; bandwidth unconstrained method; bandwidth-rate-distortion; memory bandwidth; optimized motion estimation process; video encoder; Bandwidth; Channel allocation; Computational complexity; Constraint optimization; Data communication; Degradation; Design optimization; Motion estimation; Optimization methods; Rate distortion theory; Motion estimation; bandwidth-aware;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2009. ICME 2009. IEEE International Conference on

Conference_Location

New York, NY

ISSN

1945-7871

Print_ISBN

978-1-4244-4290-4

Electronic_ISBN

1945-7871

Type

conf

DOI

10.1109/ICME.2009.5202461

Filename

5202461