Dense GAN and Multi-layer Attention Based Lesion Segmentation Method for COVID-19 CT Images

Overview

Journal Biomed Signal Process Control

Publisher Elsevier

Date 2021 Jun 28

PMID 34178095

Citations 10

Authors

Ju Zhang

Lundun Yu

Decheng Chen

Weidong Pan

Chao Shi

Yan Niu

Xinwei Yao

Xiaobin Xu

Yun Cheng

Affiliations

Soon will be listed here.

Abstract

As the COVID-19 virus spreads around the world, testing and screening of patients have become a headache for governments. With the accumulation of clinical diagnostic data, the imaging big data features of COVID-19 are gradually clear, and CT imaging diagnosis results become more important. To obtain clear lesion information from the CT images of patients' lungs is helpful for doctors to adopt effective medical methods, and at the same time, is helpful to screen the patients with real infection. Deep learning image segmentation is widely used in the field of medical image segmentation. However, there are some challenges in using deep learning to segment the lung lesions of COVID-19 patients. Since image segmentation requires the labeling of lesion information on a pixel by pixel basis, most professional radiologists need to screen and diagnose patients on the front line, and they do not have enough energy to label a large amount of image data. In this paper, an improved Dense GAN to expand data set is developed, and a multi-layer attention mechanism method, combined with U-Net's COVID-19 pulmonary CT image segmentation, is proposed. The experimental results showed that the segmentation method proposed in this paper improved the segmentation accuracy of COVID-19 pulmonary medical CT image by comparing with other image segmentation methods.

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