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Identifying Severity of COVID-19 Medical Images by Categorizing Using HSDC Model
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作者 K.Ravishankar C.Jothikumar 《Computer Systems Science & Engineering》 SCIE EI 2023年第10期613-635,共23页
Since COVID-19 infections are increasing all over the world,there is a need for developing solutions for its early and accurate diagnosis is a must.Detectionmethods for COVID-19 include screeningmethods like Chest X-r... Since COVID-19 infections are increasing all over the world,there is a need for developing solutions for its early and accurate diagnosis is a must.Detectionmethods for COVID-19 include screeningmethods like Chest X-rays and Computed Tomography(CT)scans.More work must be done on preprocessing the datasets,such as eliminating the diaphragm portions,enhancing the image intensity,and minimizing noise.In addition to the detection of COVID-19,the severity of the infection needs to be estimated.The HSDC model is proposed to solve these problems,which will detect and classify the severity of COVID-19 from X-ray and CT-scan images.For CT-scan images,the histogram threshold of the input image is adaptively determined using the ICH Swarm Optimization Segmentation(ICHSeg)algorithm.Based on the Statistical and Shape-based feature vectors(FVs),the extracted regions are classified using a Hybrid model for CT images(HSDCCT)algorithm.When the infections are detected,it’s classified as Normal,Moderate,and Severe.A fused FHI is formed for X-ray images by extracting the features of Histogram-oriented gradient(HOG)and Image profile(IP).The FHI features of X-ray images are classified using Hybrid Support Vector Machine(SVM)and Deep Convolutional Neural Network(DCNN)HSDCX algorithm into COVID-19 or else Pneumonia,or Normal.Experimental results have shown that the accuracy of the HSDC model attains the highest of 94.6 for CT-scan images and 95.6 for X-ray images when compared to SVM and DCNN.This study thus significantly helps medical professionals and doctors diagnose COVID-19 infections quickly,which is the most needed in current years. 展开更多
关键词 CT-SCAN convolution neural network(CNN) deep CNN(HSDC) hybrid support vector machine(SVM) improved chicken swarmoptimization(ICHO) COVID-19 and image profile(ip)
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CR设备使用中应注意的问题
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作者 连瑞彬 陈国兴 《疾病监测与控制》 2008年第3期164-165,共2页
我院使用的CR机是柯达950型,相机是柯达8900型干式激光相机。均是柯达公司目前推广的最新产品。此产品具有性能优良,图像清晰,处理速度快等优点。与任何X光机均可配合使用。甚至利用小型移动式床旁机也能够获得良好的图像。在我院发... 我院使用的CR机是柯达950型,相机是柯达8900型干式激光相机。均是柯达公司目前推广的最新产品。此产品具有性能优良,图像清晰,处理速度快等优点。与任何X光机均可配合使用。甚至利用小型移动式床旁机也能够获得良好的图像。在我院发挥了巨大作用,并带来了很好的经济效益。 展开更多
关键词 CR(COMPUTED RADIOGRAPHY) 计算机摄影ip(image.Plate) 影像板
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