標題: | An Efficient Mode Preselection Algorithm for Fractional Motion Estimation in H.264/AVC Scalable Video Extension |
作者: | Li, Gwo-Long Chang, Tian-Sheuan 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | Fractional motion estimation;scalable video coding |
公開日期: | 1-十一月-2013 |
摘要: | The video coding standard, H.264/AVC scalable video extension (SVC), adopts various advanced interlayer prediction modes to explore the data redundancies between layers for better coding efficiency but at the expense of significantly increased computational complexity and data access bandwidth, especially for hardware realization of fractional motion estimation mode decision. To deal with this problem, this paper proposes a mode preselection algorithm for fractional motion estimation in scalable video coding. We first analyze the rate distortion cost relationship between different prediction modes. With the statistical results, several mode preselection rules are proposed to filter out the potentially skippable prediction modes. Simulation results show that our proposed algorithm reduces up to 65.97% prediction modes and 79.79% coding time on average with only 0.036 dB and 0.496% BD-peak signal-to-noise ratio (PSNR) degradation and BD-rate increase, respectively. Furthermore, the proposed mode preselection algorithm has been implemented in hardware and it costs only 9k gate counts, when synthesized by 90nm CMOS technology. |
URI: | http://dx.doi.org/10.1109/TCSVT.2013.2248496 http://hdl.handle.net/11536/23295 |
ISSN: | 1051-8215 |
DOI: | 10.1109/TCSVT.2013.2248496 |
期刊: | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY |
Volume: | 23 |
Issue: | 11 |
起始頁: | 1837 |
結束頁: | 1848 |
顯示於類別: | 期刊論文 |