Bandwidth-rate-distortion optimized motion estimation

  • Authors:

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

  • Affiliations:

  • Institute of Electronics Engineering, National Chiao-Tung University, Hsinchu, Taiwan;Institute of Electronics Engineering, National Chiao-Tung University, Hsinchu, Taiwan;Institute of Electronics Engineering, National Chiao-Tung University, Hsinchu, Taiwan

  • Venue:
  • ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
  • Year:
  • 2009

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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.