4.6 Article

An Efficient Methodology for Brain MRI Classification Based on DWT and Convolutional Neural Network

期刊

SENSORS
卷 21, 期 22, 页码 -

出版社

MDPI
DOI: 10.3390/s21227480

关键词

classification; convolutional neural network; discrete wavelet transform; MRI

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This paper introduces a brain MR image classification model based on discrete wavelet transform and convolutional neural network, which consists of three main stages: preprocessing, feature extraction, and classification. The proposed model has shown good results with high accuracy, outperforming other algorithms in comparison.
In this paper, a model based on discrete wavelet transform and convolutional neural network for brain MR image classification has been proposed. The proposed model is comprised of three main stages, namely preprocessing, feature extraction, and classification. In the preprocessing, the median filter has been applied to remove salt-and-pepper noise from the brain MRI images. In the discrete wavelet transform, discrete Harr wavelet transform has been used. In the proposed model, 3-level Harr wavelet decomposition has been applied on the images to remove low-level detail and reduce the size of the images. Next, the convolutional neural network has been used for classifying the brain MR images into normal and abnormal. The convolutional neural network is also a prevalent classification method and has been widely used in different areas. In this study, the convolutional neural network has been used for brain MRI classification. The proposed methodology has been applied to the standard dataset, and for performance evaluation, we have used different performance evaluation measures. The results indicate that the proposed method provides good results with 99% accuracy. The proposed method results are then presented for comparison with some state-of-the-art algorithms where simply the proposed method outperforms the counterpart algorithms. The proposed model has been developed to be used for practical applications.

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