| 河口表层悬浮泥沙气象卫星遥感定量模式研究 |
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| 引用本文： | 李四海,恽才兴.河口表层悬浮泥沙气象卫星遥感定量模式研究[J].遥感学报,2001,5(2):154-160. |
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| 作者姓名： | 李四海 恽才兴 |
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| 作者单位： | 中国科学院长春光学精密机械研究所!吉林长春130022 |
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| 基金项目： | 国家“九五”科技攻关项目“区域海洋地理信息示范系统”(96-922-04-04)资助。 |
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| 摘 要： | 分析了HRIS光谱图像帧序列的相关性 ,并针对这一特性 ,提出了利用D2 PCM方法 ,降低光谱图像序列的谱相关和空间相关 ,减少图像中的冗余 ,从而实现光谱图像的压缩。该方法提高了压缩比和压缩效率 ,算法运算量小 ,快速。
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| 关 键 词： | 谱相关 空间相关 DPCM D2PCM 无损压缩 |
A Study on the Quantitative Model of the Suspended Sediment Concentration from the Meteorological Satellite Imagery |
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| LI Si-hai and YUN Cai-xing.A Study on the Quantitative Model of the Suspended Sediment Concentration from the Meteorological Satellite Imagery[J].Journal of Remote Sensing,2001,5(2):154-160. |
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| Authors: | LI Si-hai and YUN Cai-xing |
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| Institution: | State Key Lab.of Estuarine and Coastal Research,Shanghai 200062,China;National Marine Data and Information Service,Tianjin 300171,China;State Key Lab.of Estuarine and Coastal Research,Shanghai 200062,China |
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| Abstract: | The correlation of HRIS spectral image sequence was analyzed in this paper. A lossless compression algorithm based on D 2PCM coder, which reduced the spectral and spatial correlation, has been developed. The proposed method depressed the image redundancy sufficiently, and increased compression ratio and efficiency. The results of experiments prove it practicable and fast. |
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| Keywords: | spectral correlation spatial correlation DPCM D 2PCM lossless compression |
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