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一、意义对于卫星遥感图像处理和机助制图而言,目前可资利用的通道是很有限的,例如陆地卫星1,2,3号只有MSS4,5,6,7四个通道,SPOT卫星模拟试验只有C_1,C_2,C_3三个通道,所能提供的信息显得不够充足。况且,这些通道之中,有的质量欠佳,例如MSS4和C_1往往含有较大的噪音干扰,留有明显的探测器扫描痕迹,尽管经过噪音纠正,依然难以消除。这就给图像解译带来较多的困难。
First, the significance of For satellite remote sensing image processing and machine-assisted mapping, the current available channels are very limited, such as terrestrial satellite 1, 2, 3 only MSS4,5,6,7 four channels, SPOT satellite simulation The experiment only C_1, C_2, C_3 three channels, the information can not be sufficient enough. Moreover, some of these channels are of poor quality. For example, MSS4 and C_1 often contain large noise interference with obvious traces of the detector scan, which are still difficult to eliminate despite noise correction. This brings more difficulties to image interpretation.