https://scholars.lib.ntu.edu.tw/handle/123456789/346854
標題: | Single-iteration full-search fractional motion estimation for quad full HD H.264/AVC encoding | 作者: | Tsung, P.-K. Chen, W.-Y. Ding, L.-F. Tsai, C.-Y. Chuang, T.-D. LIANG-GEE CHEN |
關鍵字: | Fractional motion estimation; Full search; H.264/AVC; Quad full high definition; Video coding | 公開日期: | 2009 | 起(迄)頁: | 9-12 | 來源出版物: | Proceedings - 2009 IEEE International Conference on Multimedia and Expo, ICME 2009 | 會議論文: | 2009 IEEE International Conference on Multimedia and Expo, ICME 2009 | 摘要: | Fractional motion estimation (FME) is widely used in video compression standards. In H.264/AVC, the precision of motion vector is down to quarter pixels to improve the coding efficiency. However, FME occupies over 45% of the computation complexity in an H.264 encoder and this high complexity limits the processing capability. In this paper, a single-iteration full search FME is proposed. By the algorithm and architecture co-optimization, the bandwidth to the frame buffer is reduced by 31%. Furthermore, 82% of circuit area for the Hadamard transformation and subtraction are saved from the direct implementation. Compared with prior arts, the proposed design supports 3.39 x higher throughput with only 0.02 dB PSNR drop. Thus, the specification of 4096 x 2160 quad full high definition H.264/AVC FME processing can be achieved. ©2009 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-70449559388&doi=10.1109%2fICME.2009.5202423&partnerID=40&md5=a4adae120fc9d14feab28f0ea81386e7 http://scholars.lib.ntu.edu.tw/handle/123456789/346854 |
DOI: | 10.1109/ICME.2009.5202423 | SDG/關鍵字: | Fractional motion estimation; Full search; H.264/AVC; Quad full high definition; Video coding; Computational efficiency; Estimation; Image compression; Motion Picture Experts Group standards; Multimedia systems; Visual communication; Motion estimation |
顯示於: | 電機工程學系 |
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