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一种基于DCT的图像多描述编码方法 被引量:1

A Method of DCT-based Multiple-description Coding
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摘要 多描述编码针对不可靠网络传输将信号源编码成多个比特流,利用信号冗余估计丢失的信息,支持多层次质量解码。就两个描述的情况提出了三种基于离散余弦变换(DCT)的多描述编码方案。 Multiple-description coding is developed for un-reliable networks transmission.It describes resource signal into several bit-streams, estimates lost information by using the relationship between different descriptions, and supports multiple quality levels of decoding.In this paper, three schemes of multiple-description coding based on DCT are proposed for the case of two descriptions.
出处 《计算机应用研究》 CSCD 北大核心 2004年第2期246-247,260,共3页 Application Research of Computers
基金 浙江省青年人才基金(RC01057)资助项目 北京大学视觉与听觉信息处理国家重点实验室开放基金资助项目 浙江省中青年学科带头人基金资助项目 宁波市重点博士基金资助项目 (0 1J2 0 3 0 0 0 5 2 0 0 3A61 0 0 1 ) 教育部留学归国人员科研基金资助项目
关键词 离散余弦变换(Discrete COSINE Transform DCT) 多描述编码 不可靠网络传输 Discrete Cosine Transform(DCT) Multiple-description Coding Transmission via Un-reliable Networks
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同被引文献6

  • 1张洋,张楠,尹宝才.多描述编码研究现状[J].计算机学报,2007,30(9):1612-1624. 被引量:13
  • 2Ozarow L. On a source-coding problem with two channels and three receivers[J]. Bell System Technical Journal, 1980, 59(10) :1909.
  • 3Battlo J C, Vaishampayan V. Asymptotic performance of multiple description transform coding [ J ]. IEEE Transactions on Information Theory, 1997, 43(2):703.
  • 4Doo Man Chung, Yao Wang. Multiple description image coding using signal decomposition and reconstruction based on lapped orthogonal transforms[J]. IEEE Trans. on CSVT, 1999, 9(6) :895.
  • 5Wang Y, Orchard M T, Reibman A R. Multiple description image coding for noisy channels by pairing transform coefficients[C] // Proceedings of the IEEE 1st Workshop on Multimedia Signal Processing. Princeton, New Jersey, 1997:419-424.
  • 6Li Weiping. Overview of fine granularity scalability in MPEG-4 video standard [ J ]. IEEE Transactions on Circuits and System for Video Technology, 2001, 11(3) : 301.

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