基于优化残差注意力的广义对抗网络在胸部CT图像上的COVID-19分类

IF 1.8 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE
A. V. P. Sarvari, K. Sridevi
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引用次数: 0

摘要

COVID-19的早期发现和分类对疾病诊断和控制至关重要。为了减少对医疗专业人员的需求,需要快速准确地检测COVID-19的方法。由于对环境的考虑,图像的质量下降了。与逆转录聚合酶链反应(RT-PCR)相比,胸部计算机断层扫描(CT)成像可能是一种更可靠、更有用、更快速的新冠肺炎分类和评估技术。因此,深度学习(DL)技术的性能下降。因此,本文提出一种基于CT图像的混合DL技术,用于将COVID-19疾病分类为COVID或非COVID或肺炎。首先,在预处理阶段,引入混合非局部矩双边滤波(hybrid NMBF)技术进行图像去噪和尺寸调整。预处理后的图像进入特征提取阶段。采用灰度协方差矩阵(GLCM)技术提取相关特征,降低特征维数。在特征选择过程中,引入了增强的阿基米德优化算法(EAOA)来选择最优特征。引入残差通道注意力生成对抗网络(RCA-GAN)技术进行图像分类。在这里,使用矶鹞优化(Sandpiper optimization, SPO)算法对网络的超参数进行调整,以优化损失函数。本研究使用的数据集为covid - ct -机器学习深度学习(MD),并使用MATLAB工具对性能进行分析。在实验场景中,该系统达到了98.3%的准确率、98.7%的特异性、99.4%的灵敏度、97.4%的F-score和96.1%的kappa。实验结果表明,该系统比传统技术具有更好的工作性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimized Residual Attention Based Generalized Adversarial Network for COVID-19 Classification Using Chest CT Images

The early detection and classification of COVID-19 is crucial for disease diagnosis and control. To reduce the need for medical professionals, fast and accurate detection approaches for COVID-19 are required. Due to environmental concerns, the quality of the image gets degraded. Compared with reverse-transcription polymerase chain reaction (RT-PCR), chest computed tomography (CT) imaging may be a significantly more trustworthy, useful, and rapid technique to classify and evaluate COVID-19. Thus, the performance of the deep learning (DL) techniques is diminished. Therefore, a CT image-based hybrid DL technology is presented in this article for the classification of COVID-19 disease as COVID or non-COVID or pneumonia. Initially, in the pre-processing stage, the hybrid nonlocal moment bilateral filtering (Hybrid NMBF) technique is introduced for image de-noising and re-sizing. After pre-processing, the image is fed into the feature extraction phase. Gray-level covariance matrices (GLCM) technique is used to extract the relevant features and reduce feature dimensionality issues. For the feature selection process, the enhanced Archimedes optimization algorithm (EAOA) is introduced to select optimal features. The residual channel attention-generative adversarial network (RCA-GAN) technique is introduced for image classification. Here, the hyperparameter of the network is tuned using the Sandpiper optimization (SPO) algorithm to optimize the loss function. The data set used in this research is COVID-CT-machine learning deep learning (MD), and the performance is analyzed using the MATLAB tool. In the experimental scenario, the proposed system achieves 98.3% accuracy, 98.7% specificity, 99.4% sensitivity, 97.4% F-score, and 96.1% kappa. The attained results prove that the proposed system works better than the traditional techniques.

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来源期刊
Computational Intelligence
Computational Intelligence 工程技术-计算机:人工智能
CiteScore
6.90
自引率
3.60%
发文量
65
审稿时长
>12 weeks
期刊介绍: This leading international journal promotes and stimulates research in the field of artificial intelligence (AI). Covering a wide range of issues - from the tools and languages of AI to its philosophical implications - Computational Intelligence provides a vigorous forum for the publication of both experimental and theoretical research, as well as surveys and impact studies. The journal is designed to meet the needs of a wide range of AI workers in academic and industrial research.
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