Title :
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
fDate :
June 28 2009-July 3 2009
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;
Conference_Titel :
Multimedia and Expo, 2009. ICME 2009. IEEE International Conference on
Conference_Location :
New York, NY
Print_ISBN :
978-1-4244-4290-4
Electronic_ISBN :
1945-7871
DOI :
10.1109/ICME.2009.5202461
