Spectral Reflectance Retrival of Image Data by Imaging Spectrometer PHI
PHI成像光谱图像反射率转换

The reflectance retrievalofremote sensing data can be classified intothree kinds.The first one use radiative transfer model.The second oneis base upon imageitselfto getrelative reflectance .Thethird methodisto getempirical relationship between image DNvalues and reflectance ofthe objects by using thereflectance and radiation ofthe known objects.This paperfirstanalysesthese methods,andthentransform the data ofairborneimagingspectrometer PHItore flectance using the empiricalline method .The accuracy oftheresultis also presented .