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Article type: Research Article
Authors: Shankarlal, B.a; * | Dhivya, S.b | Rajesh, K.c | Ashok, S.d
Affiliations: [a] Department of Electrical and Computer Engineering, Perunthalaivar Kamarajar Institute of Engineering and Technology, Karaikal, India | [b] Department of Electrical and Computer Engineering, Sri Manakula Vinayagar Engineering College, Puducherry, India | [c] Department of Electrical and Computer Engineering, SSM Institute of Engineering and Technology, Kuttathupatti, Dindigul, India | [d] Department of Electrical and Computer Engineering, Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, India
Correspondence: [*] Corresponding author: B. Shankarlal, Assistant Professor, Department of Electrical and Computer Engineering, Perunthalaivar Kamarajar Institute of Engineering and Technology, Karaikal, India. E-mail: shankarlal.pkiet@gmail.com.
Note: [1] This article received a correction notice (Erratum) with the reference 10.3233/XST-200002, available at http://doi.org/10.3233/XST-200002.
Abstract: BACKGROUND:Thyroid tumor is considered to be a very rare form of cancer. But recent researches and surveys highlight the fact that it is becoming prevalent these days because of various factors. OBJECTIVES:This paper proposes a novel hybrid classification system that is able to identify and classify the above said four different types of thyroid tumors using high end artificial intelligence techniques. The input data set is obtained from Digital Database of Thyroid Ultrasound Images through Kaggle repository and augmented for achieving a better classification performance using data warping mechanisms like flipping, rotation, cropping, scaling, and shifting. METHODS:The input data after augmentation goes through preprocessing with the help of bilateral filter and is contrast enhanced using dynamic histogram equalization. The ultrasound images are then segmented using SegNet algorithm of convolutional neural network. The features needed for thyroid tumor classification are obtained from two different algorithms called CapsuleNet and EfficientNetB2 and both the features are fused together. This process of feature fusion is carried out to heighten the accuracy of classification. RESULTS:A Multilayer Perceptron Classifier is used for classification and Bonobo optimizer is employed for optimizing the results produced. The classification performance of the proposed model is weighted using metrics like accuracy, sensitivity, specificity, F1-score, and Matthew’s correlation coefficient. CONCLUSION:It can be observed from the results that the proposed multilayer perceptron based thyroid tumor type classification system works in an efficient manner than the existing classifiers like CANFES, Spatial Fuzzy C means, Deep Belief Networks, Thynet and Generative adversarial network and Long Short-Term memory.
Keywords: Thyroid tumor, bilateral filter, dynamic histogram equalization, feature fusion, segnet, multilayer perceptron, capsulenet
DOI: 10.3233/XST-230430
Journal: Journal of X-Ray Science and Technology, vol. 32, no. 3, pp. 651-675, 2024
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