Efficient Processing Technique for Unavailable Data in Hardware Implementation of Motion Estimator with Parallel Processing Architecture

움직임 추정기의 병렬처리 구조 하드웨어 구현시비유효 데이터의 효율적인처리 방법

  • Published : 2009.02.28


In this paper, we propose the efficient processing technique for unavailable data in hardware implementation of motion estimator in H.264/AVC with parallel processing architecture. Motion estimation processing in the hardware is generally based on pipe-lining, some MV data of neighbor blocks are not available, whereas all MV data are valid in software processing where the data are sequentially processed. In this paper, we solve the problem of data being unavailable in MVp computation. To minimize the quality degradation caused by unavailable MVs, in the proposed method, the unavailable MV of a neighboring block is replaced with an integer pel unit MV, an MVp of neighboring blocks, or an MVcol (MV of co-located block). Comparing to the conventional method [7], our method outperformed maximally 0.832dB and 0.179dB for QCIF and CIF, respectively, in terms of BDPSNR.


H.264;MPEG4 AVC;Inter Prediction;Motion Estimation;Motion Compensation


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