| H.264运动估计整像素部分算法及硬件实现 |
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| 引用本文： | 魏俊,曹宇辉,李式巨.H.264运动估计整像素部分算法及硬件实现[J].江南大学学报(自然科学版),2007,6(3):297-301. |
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| 作者姓名： | 魏俊 曹宇辉 李式巨 |
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| 作者单位： | 浙江大学,信息科学与工程学院,浙江,杭州,310027 |
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| 摘 要： | 根据图像序列运动矢量时间、空间分布特性,针对H.264图像压缩提出了一种基于六边形搜索派生的运动估计快速算法,采用双六边形与小菱形结合的搜索模板,减少了搜索点数,降低了运算复杂度.算法部分和编码器其他部分的Verilog模块结合在FPGA上进行了仿真,结果表明,该算法与全搜索、六边形搜索、菱形搜索和不对称十字与多六角形网格混合搜索等算法相比较,在保证图像质量的前提下,具有减少运算量和复杂度的优点.
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| 关 键 词： | 运动估计 块匹配 双六边形搜索 菱形搜索 分块模式选择 |
| 文章编号： | 1671-7147（2007）03-0297-05 |
| 收稿时间： | 2006-02-09 |
| 修稿时间： | 2006-02-092006-04-30 |
Integer Pixel Motion Estimation Algorithm of H. 264 and Hardware Realization |
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| WEI Jun,CAO Yu-hui,LI Shi-ju.Integer Pixel Motion Estimation Algorithm of H. 264 and Hardware Realization[J].Journal of Southern Yangtze University:Natural Science Edition,2007,6(3):297-301. |
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| Authors: | WEI Jun CAO Yu-hui LI Shi-ju |
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| Institution: | College of Information Science and Engineering, Zheiiang University, Hangzhou 310027,China |
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| Abstract: | In this paper,author proposes a novel technique for fast motion compensation which chooses different search pattern according to the type of video sequences.The paper proposes a double hexagon and diamond search pattern aimed at the video sequences to reduce the search points.The experimental results justify that the proposed algorithm can reduce the computation complexity as well as maintain the image quality. |
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| Keywords: | motion estimation block matching double hexagon search diamond search macroblock partition mode decision |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
