Long-term prediction for hierarchical-B-picture-based coding of video with repeated shots

摘要: The latest video coding standard High Efficiency Video Coding (HEVC) can achieve much higher efficiency than previous standards. Particularly, by exploiting the hierarchical B-picture prediction structure, temporal redundancy among neighbor frames is eliminated remarkably well. In practice, videos available to consumers usually contain many repeated shots, such as TV series, movies, and talk shows. According our observations, when these are encoded HEVC with correlation in each shot well exploited. However, long-term between shots has not been used. We propose a (LTP) scheme use correlated video. reference (LTR) of source chosen clustering similar extracting representative frames, modified structure based on an LTR frame introduced support prediction. An adaptive quantization method further designed for improve overall efficiency. Experimental results show that up 22.86% gain be achieved using new scheme.