| 基于H.264压缩域的运动对象快速分割方法 |
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| 引用本文： | 孔祥鹏,邢薇,马立和.基于H.264压缩域的运动对象快速分割方法[J].智能计算机与应用,2012(4):14-16,21. |
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| 作者姓名： | 孔祥鹏 邢薇 马立和 |
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| 作者单位： | 哈尔滨工程大学计算机科学与技术学院 |
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| 基金项目： | 黑龙江省自然科学基金项目(2011年度,编号:F201103) |
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| 摘 要： | 针对H.264压缩域的运动对象分割问题,提出了一种基于Fisher准则的运动对象分割方法。首先将运动对象中每个宏块中子块的运动矢量进行加权,获取每个宏块的运动矢量,然后利用多帧的运动矢量进行累加,获取整个宏块的运动矢量,最后使用Fisher准则将运动对象的矢量分类,从而获取H.264压缩域中的运动对象。通过实验证明,在基本满足运动对象分割准确率的前提下,达到了较好的实时性。
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| 关 键 词： | Fisher准则 H.264 运动矢量 |
A Fast Moving Object Extraction Method based on H.264 Compressed Video |
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| KONG Xiangpeng,XING Wei,MA Lihe.A Fast Moving Object Extraction Method based on H.264 Compressed Video[J].INTELLIGENT COMPUTER AND APPLICATIONS,2012(4):14-16,21. |
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| Authors: | KONG Xiangpeng XING Wei MA Lihe |
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| Affiliation: | (Science and Technology College,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | For the purpose of extracting moving object from H.264 compressed video,a extracting moving method based on Fisher criterion is presented.Firstly,the paper retrives the moving vectors(MV) of sub block in the Macro Block(MB) which was 16x16 pixels in P frame,and the moving vector of each sub block is weighted in each MB.The each moving vector of the same MB is also weighted in the inter frames.Finally,the weighted moving vector of each MB is retrived from the P frame and is judged by the Fisher criterion.The experimental results show that the proposed approach can quickly extract moving object from H.264 compressed video,which guarantees extracting quality. |
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| Keywords: | Fisher Criterion: H 264 Compressed Video: Motion Vector Field |
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