Hyperspectral image processing method used for extracting calcite information

一种用于方解石信息提取的高光谱影像处理方法

Abstract

The invention relates to a hyperspectral image processing method used for extracting calcite information. The method includes preserving the wavebands having significant spectral signatures of calcite, extracting images the wavebands of which are at 1760 nm, 1775nm, 1940 nm, 2000 nm, 2030 nm, 2105 nm, 2150 nm, 2165 nm, 2180 nm, 2195 nm, 2330 nm, 2345 nm and 2390 nm, performing a series of determination and calculation, and calculating abundance values of the calcite in different zones in the image scope. The method can remove the wavebands without significant signatures, thus highlighting the spectral signatures of the calcite in an information extraction process, reducing influences of other ground features or noises, and reducing the amount of data to be processed. Through an IDL program, the method can achieve an objective of information extraction of final results by less manual operation, thus increasing the precision and the speed of calcite information extraction.
本发明涉及一种用于方解石信息提取的高光谱影像处理方法,保留方解石的光谱特征明显的波段,提取波段在1760nm,1775nm,1940nm,2000nm,2030nm,2105nm,2150nm,2165nm,2180nm,2195nm,2330nm,2345nm,2390nm的影像,进行一系列判断和计算,计算出影像范围内不同区域方解石的丰度值。这种方法可以去除其他特征不明显的波段,从而在信息提取的过程突出方解石的光谱特征,降低其他地物或噪声的影响,减少了处理的数据量,并可以用IDL程序达到用较少的人工操作实现方解石信息提取的目的,提高了方解石信息提取的精度和速度。

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