Fast Mode Decision Technique for HEVC Intra Prediction Based on Reliability Metric for Motion Vectors

作者：Tsutake Chihiro; Nakano Yutaka; Yoshida Toshiyuki^*

来源：IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, 2016, E99D(4): 1193-1201.

DOI：10.1587/transinf.2015EDP7244

• H.265/HEVC
• intra prediction
• mode decision
• reliability metric
• coding efficiency
• computational complexity

This paper proposes a fast mode decision technique for intra prediction of High Efficiency Video Coding (HEVC) based on a reliability metric for motion vectors (RMMV). Since such a decision problem can be regarded as a kind of pattern classification, an efficient classifier is required for the reduction of computation complexity. This paper employs the RMMV as a classifier because the RMMV can efficiently categorize image blocks into flat(uniform), active, and edge blocks, and can estimate the direction of an edge block as well. A local search for angular modes is introduced to further speed up the decision process. An experiment shows the advantage of our technique over other techniques.

• 出版日期2016-4