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针对高光谱遥感影像由于各波段光谱范围窄,难以获得符合人们视觉效果的真彩色合成影像问题,提出一种基于物理机理的高光谱遥感图像真彩色校正模型。该模型充分利用高光谱影像在红、绿、蓝反射区的所有谱段信息,通过插补波段并进行波段加权积分重建真彩色合成图像,进而结合实测地物反射率光谱,利用辐射传输模拟的方式,构建具备普适性的真彩色校正模型。利用航空高光谱遥感影像进行色彩校正实验的结果表明,所构建的真彩色校正模型能够很好地应用于高光谱遥感影像真彩色校正。
Because of the narrow spectral range of each band, it is difficult to obtain a true color composite image that meets people’s visual effects in hyperspectral remote sensing images. A true color correction model based on physical mechanism for hyperspectral remote sensing images is proposed. The model makes full use of the information of all spectrums in the red, green and blue reflectance regions of the hyperspectral image, reconstructs the true color composite image by interpolating the band and weighted integral of the band, and then combines the reflectance spectrum of the measured object with the radiative transfer simulation Way to build a universal true color correction model. The results of color calibration experiments using aerial hyperspectral remote sensing images show that the true color correction model can be applied to true color correction of hyperspectral remote sensing images.