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多级树集合分裂算法对SAR复数图像压缩 被引量:1

Method Based on Set Partitioning in Hierarchical Trees for Complex SAR Image Data Compression
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摘要 通过分析嵌入式编码的多级树集合分裂算法SPIHT的特点,提出了一种对合成孔径雷达(SAR)复数图像数据进行压缩的方法。该算法应用SPIHT对复数图像数据中的实部和虚部分别进行压缩处理,在压缩比1∶16的情况下仍然能够较好地保留原始数据图像的模值和相位信息。在实验评估中,分别采用带点目标和面目标的SAR复数图像,通过对比原始图像和解压缩后模值图像的视觉效果、信噪比、平均相位误差、峰值旁瓣比和积分旁瓣比等参数,验证了该算法的有效性。 An approach using wavelet transform and embedded coding is proposed for complex SAR image data compression. By compressing the separated real and complex part of the image data with SPIHT, this approach manages to keep the magnitude and phase information well under the compress rate 1:16. It approves the efficiency of the method for complex-valued SAR images by displaying PSNR, PSLR, and MPE of scene image, presenting PSLR, ISLR of point target, and comparing the images of raw 'data and decompressed data.
作者 刘媛 张毅
出处 《科学技术与工程》 2009年第13期3629-3633,3641,共6页 Science Technology and Engineering
关键词 合成孔径雷达 复数图像 小波变换 嵌入式编码 SPIHT SAR complex image wavelet transform embedded coding SPIHT
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参考文献4

  • 1Eichel P, Ives R W. Compression of complex-valued SAR images. IEEE Trans Image Processing, 1999 ;8 : 1483--1487
  • 2Shapiro J M. Embedded image coding using zerotree of wavelet coefficients. IEEE Trans Signal Processing, 1993 ;41 (12) :3445--3462
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同被引文献10

  • 1宋莹华,宋建社,薛文通,袁礼海.SAR图像压缩技术的发展与现状[J].计算机应用研究,2005,22(4):6-8. 被引量:10
  • 2Eichel P, Ives R W. Compression of complex-valued SAR images[ J]. IEEE Trans Image Processing, 1999, 8:1483-1487.
  • 3Pan Z, Gao X, Sun X, et al. A lossless compression algorithm for SAR amplitude imagery based on modified quadtree coding of bit plane [ J]. IEEE Geoseience and Remote Sensing Letters, 2010,7 (4) :723-726.
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  • 9Wang J J, Liu B. Modified SPIHT based image compression algorithm for hardware implementation [ C ]//Second International Computer Science and Engineering. Qingdao, Shandong, China, Oct 28 - 30, 2009, 2 : 572-576.
  • 10Wang Z, Simoncelli E P, Bovik A C. Muhi-scale structural similarity for image quality assessment[ C]//Asilomar Conference on Signals, Systems, and Computers. 2003 : 1398-1402.

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