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| 基于随机访问的多视点视频编码模式评价模型 |
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杨 铀1,2,3, 蒋刚毅1,2,3, 郁 梅1,2,4, 曹德侠5
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1.中国科学院 计算技术研究所,北京 100190;2.中国科学院 研究生院,北京 100049;3.宁波大学 信息科学与工程学院,浙江 宁波 315211;4.北京大学 视听信息处理国家重点实验室,北京 100871;5.中国矿业大学 理学院,江苏 徐州 221008
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| 摘要: |
| 运用随机图论、超空间等方法,首先提出了针对编码预测结构的随机访问性能评价函数,对解码端和服务器端的随机访问支持代价进行评价.进而根据实际应用中的带宽、交互限制等多种目标建立了编码策略评价的多目标非线性数学模型,对编码策略在多种性能参数约束条件下如何实现最优策略进行了讨论.利用该非线性多目标规划模型对多视点视频编码策略进行了优化设计,可以获得较好的随机访问性能. |
| 关键词: 多视点视频编码 数学模型 随机图论 交互式服务 随机访问 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.60472100 (国家自然科学基金); the NSFC/KOSEF Joint Research Project under Grant No.60472100 (中韩国家基金合作研究项目); the Key Project of the Ministry of Education of China under Grant No.206059 (国家教育部科学技术研究重点项目); the Program for New Century Excellent Talents in University of China under Grant No.NCET-06-0537 (新世纪优秀人才支持计划) |
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| A Random Access Based Evaluation Model for Multiview Video Coding Schemes |
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YANG You,JIANG Gang-Yi,YU Mei,CAO De-Xia
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| Abstract: |
| In this paper, evaluation function of MVC (multiview video coding) random accessibility for decoder and server is first proposed based on the methods from random graph theory and hyper-space. Furthermore, a non-linear multi-purpose programming model for MVC performance evaluation is also proposed according to the constraints from practical network bandwidth, restrictions of interaction and other problems. Based on this model, optimal coding strategies for different MVC schemes under variant performance constraints are discussed. It is found that random accessibility of MVC scheme can be improved via this non-linear multi-purpose programming model. |
| Key words: multiview video coding mathematical model random graph theory interactive service random access |
