| 基于H.264的感兴趣区域自适应压缩编码技术 |
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| 引用本文： | 马文琪,杨华,尹海燕. 基于H.264的感兴趣区域自适应压缩编码技术[J]. 电视技术, 2013, 37(3) |
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| 作者姓名： | 马文琪 杨华 尹海燕 |
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| 作者单位： | 上海交通大学,上海交通大学,上海交通大学 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 针对公安监控中的需求，本文提出一种基于ROI的自适应编码算法，通过均值法背景建模技术提取ROI后，针对不同的空间区域采用分级编码策略。同时采用一种基于邻居宏块的性能补偿方案，减小ROI宏块漏检率，同时降低因采用分级编码策略而产生的块效应影响。实验结果表明，该算法在保证ROI编码质量的前提下，能够有效降低系统码率。
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| 关 键 词： | H.264；分级编码；ROI |
| 收稿时间： | 2012-07-23 |
| 修稿时间： | 2012-08-08 |
A Novel Adaptive H.264 Method Based on the Region of Interest |
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| mawenqi,yanghua and yinhaiyan. A Novel Adaptive H.264 Method Based on the Region of Interest[J]. Ideo Engineering, 2013, 37(3) |
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| Authors: | mawenqi yanghua yinhaiyan |
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| Affiliation: | Shanghai Jiaotong University,Shanghai Jiaotong University,Shanghai Jiaotong University |
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| Abstract: | To satisfy the requirement of the security monitor system, a novel adaptive H.264 method based on the ROI is proposed. The ROI is firstly extracted via background modeling method and then the frame is encoded with spatial scalability. Meanwhile, to decline the omission ratio of the ROI and reduce the influence of the blocking artifact, a compensation scheme based on the neighborhood macro blocks is applied. Experiment shows that the proposed encoding scheme could decrease the bitrate while keep the encoding quality in a proper level. |
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| Keywords: | H.264 Spatial scalability ROI |
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