An H.264/AVC video coder based on Multiple Description Scalar Quantizer

An H.264/AVC video coder based on Multiple Description Scalar Quantizer
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DOI：
10.1109/tcsvt.2008.918113
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发表时间：
2008-02
期刊：
2006 Fortieth Asilomar Conference on Signals, Systems and Computers
影响因子：
--
通讯作者：
O. Campana;R. Contiero;G. Mian
O. Campana;R. Contiero;G. Mian
中科院分区：
其他
文献类型：
--
作者：
O. Campana;R. Contiero;G. Mian

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在不可靠的网络上传输编码的视频序列通常需要采用保护技术来保证接收端良好的重建质量。多描述编码(MDC)策略增加了实时视频应用的可靠性，在实时视频应用中，不可能重传，并且分组丢失会影响几个帧的整体质量。提出了一种新的基于H.264/AVC标准的多描述编码方案和一种多描述标量量化器，将残差信息编码成两个描述。最后，给出了客观和直观的表现。
Transmission of encoded video sequences over unreliable networks usually requires the adoption of protection techniques to guarantee good reconstruction quality at the receiver side. Multiple description coding (MDC) strategies add reliability to real-time video applications, where retransmission is not possible and packet losses afflict several frames degrading the overall quality. This paper presents a novel MDC scheme based on the H.264/AVC standard and a multiple description scalar quantizer which encodes the residual information into two descriptions. Finally, objective and visual performances are presented.