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混合采样多描述图像编码

HYBRID SAMPLING CODING FOR MULTIPLE-DESCRIPTION IMAGES
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摘要 分析了图像DCT高频系数与不同采样方式的多描述图像编码的关系,得出了二者之间存在相关性的结论.在此基础上,提出了根据DCT高频系数来选择局部采样方式的编码方法——混合采样多描述编码.主客观评测表明,相同码率下混合采样具有更好的单描述重建图像质量. This paper describes the relationship between DCT high frequency coefficients of images and sampling schemes of multiple description coding （MDC）. Hybrid sampling coding with multiple--description is proposed which chooses its local sampling scheme according to DCT high frequency coefficient. Subjective and objective evaluation shows that in comparison with other sampling scheme in MDC, this method achieves higher description-image quality at similar compression rates.
作者 张博 叶卫平 钟承洋 匡炜 栗蔚
机构地区 北京师范大学信息科学与技术学院
出处 《北京师范大学学报（自然科学版）》 CAS CSCD 北大核心 2008年第4期391-395,共5页 Journal of Beijing Normal University(Natural Science)
关键词 多描述编码 DCT高频系数 混合采样 图像编码 multiple-description coding DCT high frequency coefficient hybrid sampling image coding
分类号 TN919.81 [电子电信—通信与信息系统] TP271.8 [自动化与计算机技术—检测技术与自动化装置]
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参考文献7

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二级参考文献51

  • 1Goyal V K.Multiple description coding:Compression meets the network.IEEE Signal Processing Magazine,2001,18(9):74-93
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  • 10Vaishampayan V A.Design of multiple description scalar quantizers.IEEE Transactions on Information Theory,1993,39(3):821-834

共引文献12

北京师范大学学报（自然科学版）
2008年 第4期

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