atmospheric correction for airborne hyperspectral data

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Last Post 10 Sep 2015 05:16 PM by anon

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anon

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Posts:22

10 Sep 2015 05:16 PM
Hi, I am a MS student in Geology at Bowling Green State University. I am trying to do atmospheric correction for airborne hyperspectral images using ENVI 5.2. I tried ENVI FLAASH and got a 'good looking' image. But when I checked the spectral profile, the data values are not that good. Is it possible to use flaash to process my data? I tried QUick correction too. It looks lot more better than flaash and the spectral profile match with my in-situ measurements. Is this QUick correction reliable for hyperspectral airborne data? Thank you.Prabha

MariM

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Posts:2396
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14 Sep 2015 11:19 AM
What kind of imagery are you using? Did you use ENVI's radiometric calibration tool with 'FLAASH settings' to calibrate to radiance first? What is the range of the output values from FLAASH? Yes, Quac is also a very good method for performing atmospheric correction of an image. It was developed by the same engineers who created FLAASH and is typically within +/-15% of the FLAASH model.

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