Cache-based integer motion/disparity estimation for quad-HD H.264/AVC and HD multiview video coding

Authors:
Pei-Kuei Tsung;Wei-Yin Chen;Li-Fu Ding; Shao-Yi Chien;Liang-Gee Chen
Affiliations:
DSP/IC Design Lab, Graduated Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan;DSP/IC Design Lab, Graduated Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan;DSP/IC Design Lab, Graduated Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan;DSP/IC Design Lab, Graduated Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan;DSP/IC Design Lab, Graduated Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan
Venue:
ICASSP '09 Proceedings of the 2009 IEEE International Conference on Acoustics, Speech and Signal Processing
Year:
2009

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Abstract

To provide more vivid perception, more and more advanced features, like the 4k脳2k resolution and the multiview functionality, are emerging for TV. For a multiview video coding (MVC) encoder, motion and disparity estimation (ME/DE) take at least half the hardware requirement. To solve these challenges, a cache-based integer ME/DE algorithm is proposed. With a cache memory as the search window buffer, a predictor-centered ME/DE algorithm is presented. The search range can be reduced to 卤16 pixels with less than 0.1dB quality drop compared with full search algorithm. Based on this algorithm, an integer ME/DE chip design is realized. It can reduce 82% on-chip SRAM and 39% system bandwidth. Moreover, the search candidate requirement is also reduced by 79%. As the result, an ME/DE chip design for 4k脳2k quad-HD H.264 and HDTV MVC is implemented.