USGS Spectral Library是由美国地质调查局光谱分析实验室和地质、地球物理、地球化学科学中心联合编纂的综合性光谱数据库。该数据库通过实验室、野外和航空光谱仪测量多种物质的反射率波谱，并收集X射线衍射、电子探针等分析技术数据。库内光谱覆盖紫外到远红外波长范围，样品包括纯净矿物、岩石、土壤、植物、微...
In order to USGS standard spectral library of the corrosion is fossil as the reference spectrum, respectively, of the reference spectrum, and pre-processing on spectral image each pixel of the spectrum for a continuous process, to remove the highlighted within a band of the spectrum, and then ...