Advance in Scence Change-Based H.264 Rate Control Methods

摘要

Scene change occurs frequently in the video, which has an important impact on the video quality. The JVT-G012 rate control algorithm for H.264/AVC uses fixed-length group of picture structure, which can not effectively deal with the video sequence scene change, resulting in the quality decline of frames after scene change. We reviewed the scene change-based H.264 rate control methods in this paper. They are classified into two categories-scene change detection-based rate control method and scene adaptive rate control method. A comparative study of the interaction and discussion about the various algorithms and their advantages and disadvantages are presented. Based on these research results, some improvedment are discussed.