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This paper describes a bottom-types classification method for mapping shallow coral reef area using hyperspectral bottom index (BI) imagery. Monitoring of coral reef degradation, especially coral bleaching, is important because coral reefs offer important ecosystem services. However, it is difficult to monitor coral reefs using spaceborne multispectral sensors due to spectral confusion between coral,...
Coral bleaching can lead to death of corals and has been increasing in worldwide in recent years. We proposed a method to classify extents of alive and dead corals by using space-bone hyperspectral sensor to monitor the events. The method was composed of two different approaches- Bottom Index and first derivative analysis of reflectance. In this study, examinations for improvement of classification...
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