Applied Computer, College of Medicals and Applied Sciences, Charmo University, Chamchamal, Sulaimani, KRG, Iraq.
Technical College of Informatics, Sulaimani Polytechnic University, Sulaimani, KRG, Iraq.
Biomed Res Int. 2020 Jul 10;2020:8125392. doi: 10.1155/2020/8125392. eCollection 2020.
Discrete wavelet transform (DWT) is often implemented by an iterative filter bank; hence, a lake of optimization of a discrete time basis is observed with respect to time localization for a constant number of zero moments. This paper discusses and presents an improved form of DWT for feature extraction, called Slantlet transform (SLT) along with neutrosophy, a generalization of fuzzy logic, which is a relatively new logic. Thus, a novel composite NS-SLT model has been suggested as a source to derive statistical texture features that used to identify the malignancy of brain tumor. The MR images in the neutrosophic domain are defined using three membership sets, true (), false (), and indeterminate (); then, SLT was applied to each membership set. Three statistical measurement-based methods are used to extract texture features from images of brain MRI. One-way ANOVA has been applied as a method of reducing the number of extracted features for the classifiers; then, the extracted features are subsequently provided to the four neural network classification techniques, Support Vector Machine Neural Network (SVM-NN), Decision Tree Neural Network (DT-NN), -Nearest Neighbor Neural Network (KNN-NN), and Naive Bayes Neural Networks (NB-NN), to predict the type of the brain tumor. Meanwhile, the performance of the proposed model is assessed by calculating average accuracy, precision, sensitivity, specificity, and Area Under the Curve (AUC) of the Receiver Operating Characteristic (ROC) curve. The experimental results demonstrate that the proposed approach is quite accurate and efficient for diagnosing brain tumors when the Gray Level Run Length Matrix (GLRLM) features derived from the composite NS-SLT technique is used.
离散小波变换 (DWT) 通常通过迭代滤波器组实现;因此,对于固定数量的零阶矩,观察到离散时间基的优化不足,时间局部化。本文讨论并提出了一种用于特征提取的改进的 DWT 形式,称为斜变换 (SLT) 以及 Neutrosophy,这是模糊逻辑的推广,是一种相对较新的逻辑。因此,提出了一种新的复合 NS-SLT 模型作为一种源,用于提取统计纹理特征,用于识别脑肿瘤的恶性程度。 Neutrosophic 域中的 MR 图像使用三个隶属度集定义,真 (true)、假 (false) 和不确定 (indeterminate);然后,将 SLT 应用于每个隶属度集。使用三种基于统计测量的方法从脑 MRI 图像中提取纹理特征。应用单向方差分析作为减少分类器提取特征数量的方法;然后,将提取的特征提供给四种神经网络分类技术,支持向量机神经网络 (SVM-NN)、决策树神经网络 (DT-NN)、K 近邻神经网络 (KNN-NN) 和朴素贝叶斯神经网络 (NB-NN),以预测脑肿瘤的类型。同时,通过计算接收者操作特性 (ROC) 曲线的平均准确度、精确度、灵敏度、特异性和曲线下面积 (AUC) 来评估所提出模型的性能。实验结果表明,当使用复合 NS-SLT 技术得出的灰度游程长度矩阵 (GLRLM) 特征时,所提出的方法对于诊断脑肿瘤非常准确和有效。