Rice diseases classification using feature selection and rule generation techniques

• Published in: Computers and electronics in agriculture Vol. 90; pp. 76 - 85
• Main Authors: Phadikar, Santanu, Sil, Jaya, Das, Asit Kumar
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-01-2013; Elsevier
• Subjects: Agriculture; Agronomy. Soil science and plant productions; Biological and medical sciences; Classification; Classifiers; Color; Colour; Diseases; Feature extraction; Fermi energy; Fermi surfaces; Fundamental and applied biological sciences. Psychology; Genetic algorithm; Rice; Rice diseases; Rough set theory; Rule base classifier; Rough set theory; Feature extraction; Rice diseases; Genetic algorithm; Fermi energy; Rule base classifier; Monocotyledones; Feature selection; Classifier; Oryza; Energy; Gramineae; Angiospermae; Classification; Herbaceous plant; Spermatophyta; Extraction
• ISSN: 0168-1699; 1872-7107
• DOI: 10.1016/j.compag.2012.11.001

► Fermi energy based segmentation method is applied to extract infected portion from image. ► Two steps Genetic Algorithm has been applied for shape detection. ► Tree structure based position feature is extracted. ► Rough set based feature selection method is proposed to identify essential features. ► Classification rules are generated using complete coverage criterion.
Development of an automation system for classifying diseases of the infected plants is a growing research area in precision agriculture. The paper aims at classifying different types of rice diseases by extracting features from the infected regions of the rice plant images. Fermi energy based segmentation method has been proposed in the paper to isolate the infected region of the image from its background. Based on the field experts’ opinions, symptoms of the diseases are characterized using features like colour, shape and position of the infected portion and extracted by developing novel algorithms. To reduce complexity of the classifier, important features are selected using rough set theory (RST) to minimize the loss of information. Finally using selected features, a rule base classifier has been built that cover all the diseased rice plant images and provides superior result compare to traditional classifiers.