| 三维多光谱数据压缩的新方法 |
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| 引用本文： | 阎敬文,祁雷.三维多光谱数据压缩的新方法[J].光学学报,1997,17(3):98-303. |
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| 作者姓名： | 阎敬文 祁雷 |
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| 作者单位： | 中国科学院长春光学精密机械研究所应用光学国家重点实验室，长春邮电学院通信工程系 |
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| 摘 要： | 提出了一种三维多光谱图像数据压缩的新方法，在对多光变图像数据进行了Ｋａｒｈｕｎｅｎ－Ｌｅｏｖｅ变换Ｋ－Ｌ变换后，再对变换后的多光谱图像数据进行静止图像方法压缩编码，消除谱和空间相关性。
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| 关 键 词： | 多光谱图像 本征矢量 数据压缩 信息光学 |
| 收稿时间： | 1996/8/18 |
A New Method for 3D Multispectral Data Compression |
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| Yan Jingwen,Qian Shen en,Sun Hui,Zhang Shenghua.A New Method for 3D Multispectral Data Compression[J].Acta Optica Sinica,1997,17(3):98-303. |
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| Authors: | Yan Jingwen Qian Shen en Sun Hui Zhang Shenghua |
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| Abstract: | A new method is proposed for multispectral image data compression. The multispectral image data after Karhunen Leove Transformation (KLT) its spectral correlation and spatial redundancy are removed by using JPEG compression coding. A method is presented to decrease the bit flow to maximum degree. Experiment showed that this method can result in the compression ratio of 3.2~5.3 in the sixteen bands multispectral data to remove the spectral correlation without any loss. The total compression ratio of KLT+JPE can reach 103 (Q=50), PSNR being 34.0 dB. It is superior to the method of applying DCT to remove the spectral correlation. |
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| Keywords: | KLT multispectral image covariance matrix eigen vectors data compression |
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