Optimized Deformable Model-based Segmentation and Deep Learning for Lung Cancer Classification

Lung cancer is one of the life taking disease and causes more deaths worldwide. Early detection and treatment is necessary to save life. It is very difficult for doctors to interpret and identify diseases using imaging modalities alone. Therefore computer aided diagnosis can assist doctors for the early detection of cancer very accurately. In the proposed work, optimized deformable models and deep learning techniques are applied for the detection and classification of lung cancer. This method involves pre-processing, lung lobe segmentation, lung cancer segmentation, Data augmentation and lung cancer classification. The median filtering is considered for pre-processing and the Bayesian fuzzy clustering is applied for segmenting the lung lobes. The lung cancer segmentation is carried out using Water Cycle Sea Lion Optimization (WSLnO) based deformable model. The data augmentation process is used to augment the size of segmented region in order to perform better classification. The lung cancer classification is done effectively using Shepard Convolutional Neural Network (ShCNN), which is trained by WSLnO algorithm. The proposed WSLnO algorithm is designed by incorporating Water cycle algorithm (WCA) and Sea Lion Optimization (SLnO) algorithm. The performance of the proposed technique is analyzed with various performance metrics and attained the better results in terms of accuracy, sensitivity, specificity and average segmentation accuracy of 0.9303, 0.9123, 0.9133 and 0.9091 respectively. J. Med. Invest. 69 : 244-255, August, 2022