Oppositional Gravitational Search Algorithm and Artificial Neural Network-based Classification of Kidney Images

• Main Authors: Chaitanya S.M.K., Rajesh Kumar P.
• Format: Article
• Language: English
• Published: De Gruyter 2018-04-01
• Series: Journal of Intelligent Systems
• Subjects: probabilistic principal component analysis (ppca); oppositional gravitational search algorithm (ogsa); artificial neural network (ann); k-nearest neighbors (knn); genetic algorithm-based ann (ga-ann)
• Online Access: https://doi.org/10.1515/jisys-2017-0458
• ISSN: 0334-1860; 2191-026X

Ultrasound (US) imaging has been broadly utilized as part of kidney diagnosis because of its ability to show structural abnormalities like cysts, stones, and infections as well as information about kidney function. The main aim of this research is to effectively classify normal and abnormal kidney images through US based on the selection of relevant features. In this study, abnormal kidney images were classified through gray-scale conversion, region-of-interest generation, multi-scale wavelet-based Gabor feature extraction, probabilistic principal component analysis-based feature selection and adaptive artificial neural network technique. The anticipated method is executed in the working platform of MATLAB, and the results were analyzed and contrasted. Results show that the proposed approach had 94% accuracy and 100% specificity. In addition, its false-acceptance rate is 0%, whereas that of existing methods is not <27%. This shows the precise prediction level of the proposed approach, compared with that of existing methods.