万物在光照下均会呈现独有的光谱曲线，它们像“身份证”一样标识不同的物质。利用这一特性，可以反推光谱信息来源于哪些物质。

All things show unique spectral curves under light, and they identify different substances like ID cards. Using this property, we can deduce what material the spectral information comes f rom.

但其中仍有两大难题，一是提高光谱分辨率的难度大，低分辨率下不同物质的光谱曲线相似度高，很难区分不同光谱信息间的细微差别；二是在采集大面积待测区域的光谱信息时，单位像素中多种物质混杂，不易得到各类纯物质的光谱信息。

But there are still two problems, one is to improve the spectral resolution difficulty, spectral curve similarity of different materials under low resolution is high, it is difficult to distinguish between different nuances of spectral information; two is in the collection of large area spectral info rmation region measured when the hybrid material unit pixel, is not easy to get the spectral inf ormation of all kinds of pure substances.

该校光谱成像与智能感知重点实验室经过5年努力，成功攻克了两大难题，使光谱分辨率最大可达4nm，相当于一张纸厚度的万分之一；同时，实现了多种物质光谱信息的“解混”，并可根据使用环境经纬度、大气、光照等因素自我校正，保证分析结果的准确性。

The Key Laboratory of spectral imaging and intelligent perception after 5 years of efforts, has successfully overcome the two problems, the spectral resolution of up to 4nm, equivalent to the thickness of a sheet of paper 1/10000; at the s ame time, the mixed solution of various substances , and the spectral information can be used according to the latitude and longitude, atmospheric environment, illumination etc. the factors of self correction, to ensure the accuracy of the results.

整套系统总重不足4.5kg，既可搭载在直升机上，在2000米高空对整座山林进行大面积扫描拍摄；也可搭载在无人机上进行低空作业，1小时内就可完成对1万平方米农田的土壤分析；还可以在桌面上对地质勘探样本进行分析。

The whole system weight less than 4.5kg, which can be mounted on the helicopter, a large area scanning of the whole mountain forest at a height of 2000 meters; but also can be equipped with low altitude operations in UAV, you can complete the analysis of the 10 thousand square meters of f armland soil within 1 hours; but also on the desktop for geological exploration sample analysis.

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