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Algorithm and Architecture Design of Bandwidth-Oriented Motion Estimation for Real-Time Mobile Video Applications

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2 Author(s)
Jui-Hung Hsieh ; Department of Electronics Engineering, National Chiao-Tung University, Hsinchu, Taiwan ; Tian-Sheuan Chang

This paper proposes a data bandwidth-oriented motion estimation design for resource-limited mobile video applications using an integrated bandwidth rate distortion optimization framework. This framework predicts and allocates the appropriate data bandwidth for motion estimation under a limited bandwidth supply to fit a dynamically changing bandwidth supply. The simulation results show that our proposed algorithm can achieve 66% and 41% memory bandwidth savings while maintaining an equivalent rate-distortion performance and meeting real-time targets, when compared with conventional approaches for low-motion and high-motion D1 (704 ×  576)-size video, respectively. The final implementation costs 122 K gate counts with TSMC 0.13-μ m CMOS technology and consumes 74 mW of power for D1 resolution at 30 frames/s which is 40% of that achieved in previous designs.

Published in:

IEEE Transactions on Very Large Scale Integration (VLSI) Systems  (Volume:21 ,  Issue: 1 )