Open Access

ARTICLE

A Novel Hybrid Machine Learning Approach for Classification of Brain Tumor Images

Abdullah A. Asiri¹, Amna Iqbal², Javed Ferzund², Tariq Ali^2,*, Muhammad Aamir², Khalaf A. Alshamrani¹, Hassan A. Alshamrani¹, Fawaz F. Alqahtani¹, Muhammad Irfan³, Ali H. D. Alshehri¹

1 Radiological Sciences Department, College of Applied Medical Sciences, Najran University, Najran, 61441, Saudi Arabia
2 Department of Computer Science, COMSATS University Islamabad, Sahiwal Campus, Sahiwal, 57000, Pakistan
3 College of Engineering, Najran University, Najran, 61441, Saudi Arabia

* Corresponding Author: Tariq Ali. Email:

Computers, Materials & Continua 2022, 73(1), 641-655. https://doi.org/10.32604/cmc.2022.029000

Received 22 February 2022; Accepted 25 March 2022; Issue published 18 May 2022

Abstract

Abnormal growth of brain tissues is the real cause of brain tumor. Strategy for the diagnosis of brain tumor at initial stages is one of the key step for saving the life of a patient. The manual segmentation of brain tumor magnetic resonance images (MRIs) takes time and results vary significantly in low-level features. To address this issue, we have proposed a ResNet-50 feature extractor depended on multilevel deep convolutional neural network (CNN) for reliable images segmentation by considering the low-level features of MRI. In this model, we have extracted features through ResNet-50 architecture and fed these feature maps to multi-level CNN model. To handle the classification process, we have collected a total number of 2043 MRI patients of normal, benign, and malignant tumor. Three model CNN, multi-level CNN, and ResNet-50 based multi-level CNN have been used for detection and classification of brain tumors. All the model results are calculated in terms of various numerical values identified as precision (P), recall (R), accuracy (Acc) and f1-score (F1-S). The obtained average results are much better as compared to already existing methods. This modified transfer learning architecture might help the radiologists and doctors as a better significant system for tumor diagnosis.

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Keywords

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