About: COVID TV-UNet: Segmenting COVID-19 Chest CT Images Using Connectivity Imposed U-Net

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About: COVID TV-UNet: Segmenting COVID-19 Chest CT Images Using Connectivity Imposed U-Net Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	COVID TV-UNet: Segmenting COVID-19 Chest CT Images Using Connectivity Imposed U-Net
Creator	Kafieh, Rahele Minaee, Shervin Saeedizadeh, Narges Sonka, Milan Yazdani, Shakib
source	ArXiv
abstract	The novel corona-virus disease (COVID-19) pandemic has caused a major outbreak in more than 200 countries around the world, leading to a severe impact on the health and life of many people globally. As of mid-July 2020, more than 12 million people were infected, and more than 570,000 death were reported. Computed Tomography (CT) images can be used as an alternative to the time-consuming RT-PCR test, to detect COVID-19. In this work we propose a segmentation framework to detect chest regions in CT images, which are infected by COVID-19. We use an architecture similar to U-Net model, and train it to detect ground glass regions, on pixel level. As the infected regions tend to form a connected component (rather than randomly distributed pixels), we add a suitable regularization term to the loss function, to promote connectivity of the segmentation map for COVID-19 pixels. 2D-anisotropic total-variation is used for this purpose, and therefore the proposed model is called%22TV-UNet%22. Through experimental results on a relatively large-scale CT segmentation dataset of around 900 images, we show that adding this new regularization term leads to 2/% gain on overall segmentation performance compared to the U-Net model. Our experimental analysis, ranging from visual evaluation of the predicted segmentation results to quantitative assessment of segmentation performance (precision, recall, Dice score, and mIoU) demonstrated great ability to identify COVID-19 associated regions of the lungs, achieving a mIoU rate of over 99/%, and a Dice score of around 86/%.
has issue date	2020-07-24(xsd:dateTime)
has license	arxiv
sha1sum (hex)	2a2abdab3d7de2d83ac7a9ec63f0c3bc4a17c167
resource representing a document's title	COVID TV-UNet: Segmenting COVID-19 Chest CT Images Using Connectivity Imposed U-Net
resource representing a document's body	covid:2a2abdab3d7de2d83ac7a9ec63f0c3bc4a17c167#body_text
is schema:about of	named entity 'severe' named entity 'evaluation' named entity 'segmentation' named entity 'COVID-19' named entity 'regularization' »more»

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