Optimal DSP Based Integer Motion Estimation Implementation for H.264/AVC Baseline Encoder

: The coding gain of the H.264/AVC video encoder mainly comes from the new incorporated prediction tools. However, their enormous computation and ultrahigh memory bandwidth are the penalties. In this paper we present an approach supporting efficient data reuse process to avoid unnecessary memory accesses and redundant motion estimation computations combined with a novel fast algorithm. A merging procedure joining search origin, search pattern and new variable block size motion estimation for H.264/AVC is detailed in this paper. Those approaches yield good tradeoffs between motion estimation distortion and number of computations since they invest and exploit the centre-biased characteristics of the real world video sequences: a reliable predictor determines the search origin, localizing the search process. An efficient search pattern exploits structural constraints within the motion field. A new fast block size selection DSP-based algorithm allows simultaneous fidelity of the video qual...

• Type: Journal
• Year: 2010
• Where: IAJIT
• Authors: Imen Werda, Haithem Chaouch, Amine Samet, Mohamed Ali Ben Ayed, Nouri Masmoudi
• Keywords: IAJIT 2010, Motion Estimation, Motion Estimation Computations, Search Origin