Study on Calibration and Chlorophyll a Inversion of UAV Hyperspectral Remote Sensing Images
UAV hyperspectral remote sensing is an important means in the study of water quality monitoring.As a common phenomenon in UAV hyperspectral remote sensing images,solar flares have a serious impact on water quality monitoring.In this paper,the non-water region is removed by the water index method,and then the solar flare in the image is corrected based on the theory that the radiation from water in the near infrared band is approximately zero,and the chlorophyll a concentration is retrieved based on this.The results show that the flare correction effect is good,the image texture features and spectral features are well preserved and restored,and the chlorophyll a inversion effect is relatively good.
UAV hyperspectrumsolar flareschlorophyll a inversion