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Study on an efficient algorithm for H.263 and its implementation with single chip DSP
Author(s): 
Pages: 53-55,69
Year: Issue:  1
Journal: TV ENGINEERING

Keyword:  H.263标准运动搜索运动匹配准则零块判决离散余弦变换;
Abstract: 提出了基于H.263的快速压缩算法,并在高性能DSP芯片TMS320C62x上实时实现了该视频压缩标准.为了提高编解码的速度而提出了以下几个准则:改进的预测运动搜索法,基于边缘像素点的MSE运动匹配准则以及DCT及量化后产生零块的前判断准则,它们的使用极大地改善了编码器的性能.同时,针对DSP的特点还提出了一系列的优化方案.并且已经在TMS320C62x的开发板上完全实现了H.263协议,在CIF格式下能同时编解码20~25帧图像.
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