光谱重建与光谱真实性检验中地物光谱的作用

 将地物光谱与高光谱重建、影像光谱真实性检验相结合,重点阐述地物光谱在高光谱数据预处理中的主要作用。以新疆东天山航空HyMap数据为例,在光谱重建过程中导入数据区特征地物（白云母和高岭石）光谱,以对利用大气模型校正的视反射率影像光谱进行平滑、去“伪”或增强处理。进一步利用2种矿物的特征光谱评价重建光谱的真实性,从数据源头确保高光谱遥感数据光谱特性的准确与可靠。

SPECTRAL APPLICATION IN SPECTRAL RECONSTRUCTIONAND VALIDATION BASED ON HYPERSPECTRAL IMAGING DATA

The main roles of spectra in pre-processing of hyperspectral imaging data were studied for the spectral reconstruction and validation based on aero HyMap data in Eastern Tianshan Mountain. The spectra of both muscovite and kaolinite in the area were used to smooth the noise and pseudo-spectral features or enhance some spectral features in the processing of atmospheric correction. Furthermore, in order to ensure the spectral realities and reliabilities of hyperspectral imaging data, the authors used spectra of muscovite and calcite to validate the spectral features of hyperspectral imaging data on the basis of above processing.