Rajakumar M P, Sonia R, Uma Maheswari B, Karuppiah S P
St. Joseph's College of Engineering, OMR, Chennai, India.
B.S Abdur Rahman Crescent Institute of Science & Technology, Chennai, India.
J Xray Sci Technol. 2021;29(6):961-974. doi: 10.3233/XST-210976.
World-Health-Organization (WHO) has listed Tuberculosis (TB) as one among the top 10 reasons for death and an early diagnosis will help to cure the patient by giving suitable treatment. TB usually affects the lungs and an accurate bio-imaging scheme will be apt to diagnose the infection. This research aims to implement an automated scheme to detect TB infection in chest radiographs (X-ray) using a chosen Deep-Learning (DL) approach. The primary objective of the proposed scheme is to attain better classification accuracy while detecting TB in X-ray images. The proposed scheme consists of the following phases namely, (1) image collection and pre-processing, (2) feature extraction with pre-trained VGG16 and VGG19, (3) Mayfly-algorithm (MA) based optimal feature selection, (4) serial feature concatenation and (5) binary classification with a 5-fold cross validation. In this work, the performance of the proposed DL scheme is separately validated for (1) VGG16 with conventional features, (2) VGG19 with conventional features, (3) VGG16 with optimal features, (4) VGG19 with optimal features and (5) concatenated dual-deep-features (DDF). All experimental investigations are conducted and achieved using MATLAB® program. Experimental outcome confirms that the proposed system with DDF yields a classification accuracy of 97.8%using a K Nearest-Neighbor (KNN) classifier.
世界卫生组织(WHO)已将结核病(TB)列为十大死因之一,早期诊断有助于通过给予适当治疗治愈患者。结核病通常影响肺部,精确的生物成像方案有助于诊断感染。本研究旨在采用选定的深度学习(DL)方法,实现一种自动检测胸部X光片中结核病感染的方案。该方案的主要目标是在X光图像中检测结核病时获得更高的分类准确率。该方案包括以下阶段:(1)图像采集与预处理;(2)使用预训练的VGG16和VGG19进行特征提取;(3)基于蜉蝣算法(MA)的最优特征选择;(4)串行特征拼接;(5)采用五折交叉验证的二元分类。在这项工作中,分别针对以下情况验证了所提出的深度学习方案的性能:(1)具有传统特征的VGG16;(2)具有传统特征的VGG19;(3)具有最优特征的VGG16;(4)具有最优特征的VGG19;(5)拼接的双深度特征(DDF)。所有实验研究均使用MATLAB®程序进行并完成。实验结果证实,采用K近邻(KNN)分类器的所提出的DDF系统产生了97.8%的分类准确率。