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Method for performing automated in-scene based atmospheric compensation for multi-and hyperspectral imaging sensors in the solar reflective spectral region

机译:对太阳反射光谱区域中的多光谱和高光谱成像传感器执行基于场景的自动大气补偿的方法

摘要

A method of automatically compensating a multi- or hyper-spectral, multi-pixel image for atmospheric effects, comprising resolving a plurality of spectrally-diverse pixels from the image, determining a spectral baseline from the spectrally-diverse pixels, determining a statistical spectral deviation of the spectrally-diverse pixels, normalizing the statistical spectral deviation by applying a scale factor, and compensating image pixels with both the spectral baseline and the normalized spectral deviation. Another embodiment features a method of automatically determining a measure of atmospheric aerosol optical properties using a multi- or hyper-spectral, multi-pixel image, comprising resolving a plurality of spectrally-diverse pixels from the image, determining a statistical spectral deviation of the spectrally-diverse pixels, correcting the statistical spectral deviation for non-aerosol transmittance losses, and deriving from the statistical spectral deviation one or more wavelength-dependent aerosol optical depths. A final embodiment features a method of automatically determining a measure of atmospheric gaseous optical properties using a multi- or hyper-spectral, multi-pixel image, comprising resolving a plurality of spectrally-diverse pixels from the image, determining a statistical spectral deviation of the spectrally-diverse pixels, and deriving from the statistical spectral deviation wavelength-dependent gaseous optical depths.
机译:一种自动补偿多光谱或高光谱的多像素图像的大气影响的方法,包括:从图像中解析多个光谱不同的像素;从光谱不同的像素确定光谱基线;确定统计光谱偏差通过使用比例因子对光谱多样的像素进行归一化,对统计光谱偏差进行归一化,并同时使用光谱基线和归一化的光谱偏差对图像像素进行补偿。另一个实施例的特征在于一种使用多光谱或高光谱的多像素图像自动确定大气气溶胶光学特性的度量的方法,包括从图像中解析出多个光谱不同的像素,确定光谱的统计光谱偏差。 -不同的像素,校正非气溶胶透射率损失的统计光谱偏差,并从统计光谱偏差中得出一个或多个与波长相关的气溶胶光学深度。最终实施例的特征在于一种使用多光谱或高光谱的多像素图像自动确定大气气态光学特性的量度的方法,包括从图像中解析出多个光谱不同的像素,确定图像的统计光谱偏差。光谱不同的像素,并从统计光谱偏差得出与波长相关的气体光学深度。

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