Easily Implemented Methods of Radiometric Corrections for Hyperspectral–UAV—Application to Guianese Equatorial Mudbanks Colonized by Pioneer Mangroves
- Jaud, Marion
- Sicot, Guillaume
- Brunier, Guillaume
- Michaud, Emma
- Le Dantec, Nicolas
- Ammann, Jérôme
- Grandjean, Philippe
- Launeau, Patrick
- Thouzeau, Gerard
- Fleury, Jules
- Delacourt, Christophe
DOIAbstract
Hyper-DRELIO (Hyperspectral DRone for Environmental and LIttoral Observations) is a custom, mini-UAV (unmanned aerial vehicle) platform (<20 kg), equipped with a light push broom hyperspectral sensor combined with a navigation module measuring position and orientation. Because of the particularities of UAV surveys (low flight altitude, small spatial scale, and high resolution), dedicated pre-processing methods have to be developed when reconstructing hyperspectral imagery. This article presents light, easy-implementation, in situ methods, using only two Spectralon® and a field spectrometer, allowing performance of an initial calibration of the sensor in order to correct “vignetting effects” and a field standardization to convert digital num...
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