On their way to the Earth’s surface, electromagnetic waves emitted by the Sun are subject to atmospheric distortion in the form of refraction, scattering, and absorption events. As a remote sensing satellite, LAPAN A3 imagery is not immune to atmospheric disturbance. To produce images free of atmospheric disturbance, corrections are needed to remove atmospheric effects. In this study, a comparison was made between three atmospheric corrections, namely histogram adjustment, FLAASH and 6S. The research was conducted in the Batu Jamus rubber plantation area owned by PT Perkebunan Nusantara I Regional 3 and the Karanganyar area. Atmospherically corrected images were used for unsupervised classification using the ISODATA method. Visual analysis showed that atmospheric correction of the LAPAN A3 image resulted in a brighter image in the FLAASH method. Spectral reflectance curve analysis shows that the histogram adjustment method has a similar spectral reflectance shape to the reference. The classification results show no change in the histogram adjustment method, which is indicated by the accuracy value reaching 100%. On the other hand, for the FLAASH and 6S methods, there is a change in the classification, indicated by a decrease in accuracy of 44.0514% and 48.8370%, respectively.
Effect of Atmosphere Correction for Unsupervised Classification in Multispectral Camera LAPAN A3
Springer Proceedings Phys.
International Seminar on Aerospace Science and Technology ; 2024 ; Bali, Indonesia September 17, 2024 - September 17, 2024
Proceedings of the 10th International Seminar on Aerospace Science and Technology; ISAST 2024; 17 September, Bali, Indonesia ; Chapter : 12 ; 113-122
2025-02-15
10 pages
Article/Chapter (Book)
Electronic Resource
English
LAPAN A3 , Atmospheric Correction , Atmospheric Disturbance , Unsupervised Classification Physics , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) , Aerospace Technology and Astronautics , Climate, general , Ecology , Astronomy, Astrophysics and Cosmology , Measurement Science and Instrumentation , Physics and Astronomy