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基于下抽样多描述视频编码及错误隐藏 被引量:1

Downsample-based multiple description video coding and error concealment
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摘要 采用基于空间下抽样方法实现多描述视频编码,避免了常用多描述视频编码过程的误匹配问题;系统实现了2种不同的多描述分解方案,适用于不同纹理特点的视频图像。为了提高多描述解码器的性能,解码过程中使用基于自适应的边缘保持插值方法进行后处理。仿真实验结果表明,本文提出的编码方法能有效地应用于视频在不同的网络环境下传输;经过解码的后处理过程后,视频图像的信噪比有了明显提高。 Multiple description coding is a new coding technique to transmit video stream on the unreliable networks.In this paper,a multiple description coding is implemented based on the spatial sampling approach,by which the mismatching problems avoided.And two distinctive multiple description decomposition schemes are realized which are suitable for video images with various texture characteristics.In addition,to improve the multiple description decoder performance,edge dynamic matching interpolation is adopted in...
出处 《光电子.激光》 EI CAS CSCD 北大核心 2009年第4期513-516,共4页 Journal of Optoelectronics·Laser
基金 国家自然科学基金资助项目(60671037) 宁波市自然基金资助项目(2008A610029)
关键词 多描述视频编码 下抽样 错误隐藏 边缘自适应 multiple description video downsample error concealment edge adaptive
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