Morphological Analysis for Banana Disease Detection in Close Range Hyperspectral Remote Sensing Images

Early detection of banana disease can limit the spread of disease, as well as reduce the treatment costs. However, the disease symptoms are so unapparent in the earlier stage that makes the labeled samples acquisition difficult and expensive. Meanwhile, it is much easier to obtain labeled samples at the late stage where the disease symptoms are obvious. In this paper, we exploit machine learning methods to use labeled samples from the late stage to train the model, then detect the banana disease in the earlier stage. Morphological openings and closings are utilized to extract the spectral-spatial features from banana leaves at both earlier and late stages, initial experimental results demonstrate significant improvements over using only spectral information.