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In this work we propose a segmentation framework to detect chest regions in CT images, which are infected by COVID-19. ... map for COVID-19 pixels. 2D-anisotropic total-variation is used for this purpose, and therefore the proposed model is called "TV-UNet". ... ACKNOWLEDGMENT The authors would like to thank our radiologist, Doctor Ghazaleh Soufi, for her advice on the important signals in chest CT images for detecting COVID-19. ...arXiv:2007.12303v3 fatcat:5324ft3qhjbndhqhxmlviptnnm