Thermal Image Diseases Identification Using Hybrid Genetic Algorithm with Relevance Vector Machine Classification

Abstract

For thermal-based applications, images are obtained by an Infrared camera through Plank’s law. Thermal sensitivity is the smallest temperature difference detected by the camera. Thermal-images were captured through the heat emitted from plant leaves. Initially, the Gaussian noise in the medical Infrared (IR) images is pre-processed by the median filter. Then the features from the preprocessed images are obtained through the principal component analysis algorithm. From the extracted features, the optimal features are selected using the Scale Invariant Differential Evolution-based Feature (SIDEF) algorithm. Through the exploitation of the selected features, the hybrid genetic algorithm with Relevance Vector Machine (HGRVMA) classifier classifies the features into diseases and non-diseases. To validate the performance of the proposed algorithm, it is compared with the existing algorithms in terms of metrics such as sensitivity, accuracy, precision, and recall. The validation results prove that the proposed HGRVM algorithm is optimal than the existing algorithms for all the metrics.