New Prediction Techniques for Inter- and Intra-Frames of Advanced Video Coding
A novel multi-order-residual-prediction (MORP) coding approach is proposed to improve spatial prediction efficiency in video coding. We observe that the compression ratio of a video coding algorithm depends on the nature of sequences as indicated by the ratio between inter and intra blocks in the bit-stream. When the percentage of intra blocks increases, the prediction efficiency decreases, thus leading to a poorer coding gain. In other words, one bottleneck of video coding lies in poor intra prediction efficiency. To address this issue, we propose an MORP coding scheme that adopts a second-order prediction scheme after the traditional first-order prediction. Different prediction techniques are adopted in different stages to tailor to the nature of the corresponding residual signals. The proposed MORP scheme outperforms H.264/AVC by a significant margin for the intra block coding and, thus, improves the overall coding efficiency especially for HD coding.
Chung-Cheng Lou Szu-Wei Lee Seung-Hwan Kim C.-C. Jay Kuo
University of Southern California, Los Angeles CA, USA Intel Corp., Santa Clara CA, USA
国际会议
2011亚太信号与信息处理协会年度峰会(APSIPAASC 2011)
西安
英文
1-4
2011-10-18（万方平台首次上网日期，不代表论文的发表时间）