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Wyner-Ziv视频系统中解码算法研究 被引量：2

Study of Decoding Algorithm for Wyner-Ziv Video Coding System
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摘要 首先简要介绍了一种典型的分布式视频编码-Wyner-Ziv视频编码。然后对Wyner-Ziv视频编码中边信息进行理论分析,随后给出了基于加权MAD准则的边信息估计算法和基于先验概率约束的联合解码算法。实验仿真结果表明,采用本文解码优化策略,在编码端相同输出码率情况下,重建解码图像的PSNR比原始算法平均提高1.5dB。 The Wyner-Ziv video coding,which is a kind of typical distributed video coding scheme,is introduced at first. Then the mathematical analysis of the side information in Wyner-Ziv video coding is given and we propose an improved decoding algorithm of Wyner-Ziv video coding based on side information estimation using weighted MAD motion estimation criterion and decoding reconstruction based on the prior model. The results of simulation tests show that average 1.5dB gain can be achieved by applying the proposed method.
作者 干宗良 齐丽娜 朱秀昌
机构地区 南京邮电大学图像处理与图像通信重点实验室
出处 《信号处理》 CSCD 北大核心 2008年第4期609-613,共5页 Journal of Signal Processing
基金 江苏省自然科学基金(BK2004151)
关键词 分布式视频编码 Wyner—Ziv视频编码 边信息 运动估计 distributed video coding Wyner-Ziv video coding side information motion estimation
分类号 TN911.22 [电子电信—通信与信息系统] TN948.12 [电子电信—信号与信息处理]
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参考文献17

  • 1Z. Xiong, Angelos D. Liveri, Samuel Cheng. Distributed source coding for sensor networks [ J ]. Signal Processing Magazine,IEEE Volume 21 ,Issue 5 ,Sept. 2004 Page(s) : 80-94.
  • 2B. Girod, A. Aaron. , S. Rane, D. Rebollo-Monedero. Distributed video coding[ J]. Proceedings of the IEEE Volume 93, Issue 1, Jan. 2005 pp :71 - 83.
  • 3Catarina Brites, Fernando Pereira. Distributed Video Coding: Bringing New Applications to Life [ EB/OL ] http ://amalia, img. Ix. it. pt/- cicb/conftele2005 final, pdf.
  • 4A. Aaron, R. Zhang, B. Girod. Wyner-Ziv coding of motion video[ C ]. the Asilomar Conf. Signals and Systems, Pacific Grove, CA, 2002.
  • 5A. Aaron, S. Rane, R. Zhang, B. Girod. Wyner-Ziv coding for video:applications to compression and error resilience [ C ]. Proc. IEEE Data Compression Conf. , 2003, pp. 93-102.
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同被引文献20

  • 1Slepian D, Wolf J. Noiseless coding of correlated information sources [ J ]. IEEE Transactions on Information Theory, 1973, 19(4) : 471-480.
  • 2Wyner A, Ziv J. The rate-distortion function for source coding with side information at the decoder [ J ]. IEEE Transactions on Information Theory, 1976, 22 ( 1 ) : 1 - 10.
  • 3Girod B, Aaron A, Rane S, et al. Distributed video coding [ J ]. Proceedings of the IEEE, 2005, 93( 1 ) :71-88.
  • 4Aseenso J, Brites C, Pereira F. Improving frame interpolation with spatial motion smoothing for pixel domain distributed video coding [ C ]//Proceedings of 5th EURASIP Conference on Speech and Image Processing, Multimedia Communications and Services. Slovak : Slovak University of Technology, 2005.
  • 5Ascenso J, Brites C, Pereira F. Content adaptive Wyner-Ziv video coding driven by motion activity [ C ]// Proceedings of ICIP2006. Piscataway, NJ: IEEE Press, 2006: 605-608.
  • 6Li Z, Liu L, Delp E J. Rate-distortion analysis of motion side estimation in Wyner-Ziv video coding [ J ]. IEEE Transactions on Image Processing, 2007,16 ( 1 ) : 98-113.
  • 7Ascenso J, Pereira F. Hierarchical motion estimation for side information creation in Wyner-Ziv video coding[ C ]//Proceedings of the 2nd International Conference on Ubiquitous Information Management and Communication. New York, USA: ACM Press, 2008 : 347-352.
  • 8Cagnazzo M, Maugey T, Pesquet B. A differential motion estimation method for image interpolation in distributed video coding [ C ]// Proceedings of ICASSP2009. Washington, DC, USA : IEEE Computer Society Press, 2009 : 1861-1864.
  • 9MaechiaveUo B, Brandi F, Peixoto E, et al. Side-information generation for temporal and spatial scalable Wyner-Ziv codecs [ J]. EURASIP Journal on Image and Video Processing, 2009, 2009:1-11.
  • 10Suhring K, Tourapis A. H264/AVC Reference Software J M16.0 [ CP/OL]. [ 2010- 04- 14 ]. http ://iphome. hhi. de/suehring/ tml/download/.

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信号处理
2008年 第4期

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