A Quadratic Prediction Based Fractional Pixel Motion Estimation Algorithm for AVS-M Video Coding

摘要

AVS-M is the latest video coding standard developed by China for mobile application, which promises improved performance close to H.264/AVC with lower complexity. In an AVS-M video encoder, motion estimation (ME) can efficiently eliminate temporal redundancy between adjacent frames. At the same time, ME is also regarded as a vital component in a video encoder as it consumes a large amount of computation resources. Especially, in AVS-M, ME accounts for most of the complexity of the encoder for its seven block sizes and 1/4-pel accuracy fractional pixel search. Therefore, simplifying the ME process is essential for real-time applications.