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小波变换和预测编码结合的抗差错SAR图像无损压缩算法

A Lossless Compression Algorithm with Error-resistance Based on the Combination of Wavelet-transform and Prediction Coding for SAR Images
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摘要 分析了即将推出的JPEG2000标准算法和基于自适应的上下文预测编码技术,提出了小波变换有损编码加自适应上下文预测无损残差编码的具有抗差能力的SAR图像无损压缩算法。该算法既具有小波变换图像编码的累进传输,对信道具有一定鲁棒性的特点,而且压缩率高于即将推出的国际标准JPEG2000的无损压缩和国际标准算法JPEG-LS。 A lossless compression algorithm for Synthetic Aperture Radar (SAR) images is proposed. This algorithm is based on the combination of wavelet-transform and error-free context-based prediction coding. The algorithm has progressive transmission ability and is robust against communication channel error. In particular, compression rate of this algorithm is higher than ISO 憇 JPEG-LS standard and the lossless part of JPEG2000, a new standard going to be promulgated by ISO.
作者 刘荣科 张晓林 廖小涛 聂振钢
机构地区 北京航空航天大学电子工程系
出处 《电路与系统学报》 CSCD 2003年第5期62-67,共6页 Journal of Circuits and Systems
关键词 合成孔径雷达图像 小波图像编码 预测编码 无损压缩 抗差错性 SAR wavelet-based image coding prediction coding lossless compression error resilience
分类号 TN919.81 [电子电信—通信与信息系统]
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参考文献10

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电路与系统学报
2003年 第5期

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