Study on detection of Bacterial Leaf Blight disease using multi-temporal SPOT images

摘要

Many vegetation indices have been developed to extract information about vegetation condition. This study aims to detect the change of vegetation index of NDVI，GNDVI and EVI using multi-temporal images then verify the result by analyzing its relationship with the damage ratio of BLB occurrence in the field. The analysis result showed that correlation between BLB damage ratios with each indices has coefficient of determination 0.49 for NDVI change, 0.37 for GNDVI change and 0.51 for EVI change.