| 一种基于H.264的细粒度多适应性视频编码算法 |
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| 引用本文： | 蒲菊华,熊璋,侯亚荣.一种基于H.264的细粒度多适应性视频编码算法[J].系统仿真学报,2005,17(6):1462-1465. |
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| 作者姓名： | 蒲菊华 熊璋 侯亚荣 |
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| 作者单位： | 北京航空航天大学计算机学院601,北京,100083 |
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| 基金项目： | 航天科技创新基金，航空基础科学基金(00F51057) |
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| 摘 要： | 提出了一种基于H．264的细粒度多适应性编码算法并对其进行了仿真实验。该算法综合运用了MP(Matching Pursuit)变换和位面编码等细粒度编码技术，灵活地将MP变换结果分为两个层次的码流，帧间预测也采用了两级预测模式，生成了多层次细粒度的视频压缩码流。该算法输出码流具有精细可调性，能自适应网络带宽变化，对于解决视频应用在现有尽力而为网络上所面，临的带宽波动和异构等问题有着重要意义。仿真实验证明了该算法的恢复质量和可伸缩性。
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| 关 键 词： | 视频 细粒度 H．264 多适应性编码 匹配追踪变换 |
| 文章编号： | 1004-731X(2005)06-1462-04 |
| 修稿时间： | 2004年7月14日 |
Fine Granularity Adaptive Video Coding Algorithm Based on H.264 |
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| PU Ju-hua,XIONG Zhang,HOU Ya-rong.Fine Granularity Adaptive Video Coding Algorithm Based on H.264[J].Journal of System Simulation,2005,17(6):1462-1465. |
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| Authors: | PU Ju-hua XIONG Zhang HOU Ya-rong |
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| Abstract: | A fine granular adaptive video coding algorithm is presented based on H.264, which combines such fine granular scalable (FGS) coding methods as matching pursuit and bit-plane, and the results of video residual after matching pursuit are encoded into two layer bit streams. Another point presented here is the two layer inter-prediction mode. All these results are multi-layer FGS video bit streams. The algorithm is flexible for granularity adjustment and adaptive to bandwidth variation, so it is a promising solution to video application over the best-effort internet with heterogeneity and bandwidth variation. The simulation and experiments indicate its performance in video recovery and scalability. |
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| Keywords: | video fine granularity H 264 adaptive video coding matching pursuit |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
