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小波编码图像联合信源信道解码算法的研究

张晔 王申

张晔, 王申. 小波编码图像联合信源信道解码算法的研究[J]. 电子与信息学报, 2010, 32(7): 1569-1573. doi: 10.3724/SP.J.1146.2009.01145
引用本文: 张晔, 王申. 小波编码图像联合信源信道解码算法的研究[J]. 电子与信息学报, 2010, 32(7): 1569-1573. doi: 10.3724/SP.J.1146.2009.01145
Zhang Ye, Wang Shen. Study of Joint Source Channel Decoder for Wavelet Coding Images[J]. Journal of Electronics & Information Technology, 2010, 32(7): 1569-1573. doi: 10.3724/SP.J.1146.2009.01145
Citation: Zhang Ye, Wang Shen. Study of Joint Source Channel Decoder for Wavelet Coding Images[J]. Journal of Electronics & Information Technology, 2010, 32(7): 1569-1573. doi: 10.3724/SP.J.1146.2009.01145

小波编码图像联合信源信道解码算法的研究

doi: 10.3724/SP.J.1146.2009.01145

Study of Joint Source Channel Decoder for Wavelet Coding Images

  • 摘要: 为提高图像在噪声信道中传输的可靠性,该文提出了一种图像联合信源信道解码方案。信源图像首先经离散小波变换,压缩编码。编码数据经RCPC(率兼容删余卷积码)信道编码保护,通过噪声信道传输。在接收端的改进的APRI-SOVA (先验信息软输出维特比算法)在信道解码时,不仅利用了信道输出的软判决,而且进一步利用了信源解码器提供的当前解码的比特的可靠性信息。仿真结果显示,有效利用信源数据中遗留的相关性,能够实现图像解码质量的提高。
  • Hagenauer J. Source-controlled channel decoding[J]. IEEETransactions on Communications, 1995, COM-43(9):2449-2457.[2]Xu Wen, Hagenauer J, and Krgen J. Joint source and channeldecoding of compressed still images[J]. ELSEVIER SignalProcessing: Image Communication, 1999, 15(3): 217-229.[3]Yao Lei and Cao Lei. Progressive image transmission withgenetic algorithm-based optimization and multiple cyclicredundancy check structure[J]. SPIE Journal of ElectronicImaging, 2008, 17(2): 302-309.[4]Tripathi S and Mahaldar S. Joint source channel coding forwireless medium using SPIHT-RS codec[C]. Ad hoc andUbiquitous Computing, Surathkal, India, Dec. 20-23, 2006:175-178.[5]Xiang Wei-wei and Lu Pei-zhong. Joint source channel softdecoding using dynamic redundancy detection[C]. NetworksSecurity Wireless Communications and Trusted Computing,Wuhan, China, April. 25-26, 2009, 1: 576-579.[6]Yang Yang, Yi Wei-dong, and Chen Yong-rui, et al.. Iterativejoint source channel decoding in wireless sensor networks[C].Communications Circuits and Systems, Xiamen, China, May25-27, 2008: 109-113.[7]Sloane N J A, Wyner A, and Shannon C E. CollectedPapers[M]. New York: IEEE Press, 1993: 58-59.[8]Sherwood P G and Zeger K. Progressive image coding fornoisy channels[J].IEEE Signal Processing Letters.1997, 4(7):189-191[9]Hagenauer J. Rate-compatible punctured convolutional codesand their applications[J].IEEE Transactions onCommunications.1988, 36(4):389-400
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出版历程
  • 收稿日期:  2009-08-28
  • 修回日期:  2009-12-07
  • 刊出日期:  2010-07-19

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