| KL-变换/JPEG和JPEG/KL-变换压缩性能分析 |
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| 引用本文： | 祁雷,阎敬文,岳振贵,孙辉.KL-变换/JPEG和JPEG/KL-变换压缩性能分析[J].吉林大学学报(信息科学版),1997(2). |
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| 作者姓名： | 祁雷 阎敬文 岳振贵 孙辉 |
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| 作者单位： | 长春邮电学院通信工程系，中国科学院长春光机所 |
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| 摘 要： | 对ＫＬ－变换（ＫＬＴ）／ＪＰＥＧ和ＪＰＥＧ／ＫＬＴ构成的多光谱图象数据压缩系统的性能及优缺点进行了分析比较。在充分利用多光谱图象数据统计特征的基础上，将ＫＬＴ应用于多光谱数据压缩系统来消除谱相关性。仿真实验结果表明，ＫＬＴ／ＪＰＥＧ压缩系统的综合性能优于ＪＰＥＧ／ＫＬＴ压缩系统
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| 关 键 词： | KL－变换 多光谱图象 数据压缩 本征矢量 协方差矩阵 |
A compression performance analysis of KL transform/JPEG and JPEG/KL transform |
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| Qi Lei,Yan Jingwen,Yue Zhengui.A compression performance analysis of KL transform/JPEG and JPEG/KL transform[J].Journal of Jilin University:Information Sci Ed,1997(2). |
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| Authors: | Qi Lei Yan Jingwen Yue Zhengui |
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| Abstract: | The compression performance,advantage and disadvantage of KL transforms(KLT)/JPEG and JPEG/KLT for multispectral image data are presented.On the basis of statistical properties of multispectral image used,KLT is applied in the multispectral data compression system to remove spectral correlation. Simulation experiment results show the total performance of KLT/JPEG compression system is superior to that of JPEG/KLT compression system. |
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| Keywords: | KL transforms Multispectral images Data compression Eigen vectors Covariance matrix |
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