| H.264中快速分数像素运动估计算法研究 |
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| 引用本文： | 曾孝平,沈利娟,张婷婷.H.264中快速分数像素运动估计算法研究[J].世界科技研究与发展,2012,34(3):408-409,430. |
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| 作者姓名： | 曾孝平 沈利娟 张婷婷 |
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| 作者单位： | 重庆大学通信工程学院,重庆,400044 |
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| 基金项目： | 国家自然科学基金，重庆市自然科学基金(CSTC)，重庆大学研究生创新基金 |
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| 摘 要： | 为了减少分数像素运动估计的计算量,提出了一种快速分数像素运动估计算法.该算法根据块尺寸大小采用不同搜索策略:对16×16块采用改进的快速分级搜索算法,而对比16×16小的块采用基于方向的T形CBFPS搜索算法.实验结果表明,该算法在保证视频质量的同时大大减少了分数像素运动估计的运算量.
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| 关 键 词： | 运动估计 分数像素 H.264/AVC 搜索算法 |
Study on Fast Fraction Pixel Motion Estimation in H.264 |
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| ZENG Xiaoping
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SHEN Lijuan
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ZHANG Tingting.Study on Fast Fraction Pixel Motion Estimation in H.264[J].World Sci-tech R & D,2012,34(3):408-409,430. |
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| Authors: | ZENG Xiaoping SHEN Lijuan ZHANG Tingting |
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| Institution: | ( College of Communication Engineering, Chongqing University, Chongqing 400044 ) |
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| Abstract: | In order to reduce fraction pixel motion estimation computation, a fast fraction pixel motion estimation algorithm is proposed. Differ- ent search mechanisms are used based the size of block partition：an improved and fast hierarchy search algorithm is used for block 16 × 16, but for those blocks whose size is smaller than 16 × 16 ,based on direction T-CBFPS search algorithm is used. Experimental results show that the improved algorithm reduces the time of motion estimation efficiently while keeping similar visual quality. |
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| Keywords: | motion estimation fraction pixel H 264/AVC search algorithm |
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