Progressive back-projection network for COVID-CT super-resolution | |
Song, Zhaoyang1; Zhao, Xiaoqiang1,2,3; Hui, Yongyong1,2,3; Jiang, Hongmei1,2,3 | |
刊名 | COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE |
2021-09 | |
卷号 | 208 |
关键词 | COVID-CT Super-resolution Progressive back-projection network Residual attention module Up-projection and down-projection residual module |
ISSN号 | 0169-2607 |
DOI | 10.1016/j.cmpb.2021.106193 |
英文摘要 | Background and Objective: Recently, the COVID-19 epidemic has become more and more serious around the world, how to improve the image resolution of COVID-CT is a very important task. The network based on progressive upsampling for COVID-CT super-resolution increases the reconstruction error. This paper proposes a progressive back-projection network (PBPN) for COVID-CT super-resolution to solve this problem. Methods: In this paper, we propose a progressive back-projection network (PBPN) for COVID-CT super-resolution. PBPN is divided into two stages, and each stage consists of back-projection, deep feature ex-traction and upscaling. We design an up-projection and down-projection residual module to minimize the reconstruction error and construct a residual attention module to extract deep features. In each stage, firstly, PBPN performs back-projection to extract shallow features by two up-projection and down-projection residual modules; then, PBPN extracts deep features from the shallow features by two residual attention modules; finally, PBPN upsamples the deep features through sub-pixel convolution. Results: The proposed method achieves the improvements of about 0.14-0.47 dB/0.0 012-0.0 060 for x 2 scale factor, 0.02-0.08 dB/0.0 024-0.0 059 for x 3 scale factor, and 0.08-0.41 dB/ 0.0040-0.0147 for x 4 scale factor than state-of-the-art methods (Bicubic, SRCNN, FSRCNN, VDSR, LapSRN, DRCN and DSRN) in terms of PSNR/SSIM on benchmark datasets. Conclusions: The proposed mehtod obtains better performance for COVID-CT super-resolution and recon-structs high-quality high-resolution COVID-CT images that contain more details and edges. (c) 2021 Elsevier B.V. All rights reserved. |
WOS研究方向 | Computer Science ; Engineering ; Medical Informatics |
语种 | 英语 |
出版者 | ELSEVIER IRELAND LTD |
WOS记录号 | WOS:000685503300003 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/148760] |
专题 | 电气工程与信息工程学院 |
作者单位 | 1.Lanzhou Univ Technol, Coll Elect Engn & Informat Engn, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Natl Expt Teaching Ctr Elect & Control Engn, Lanzhou 730050, Peoples R China 3.Key Lab Gansu Adv Control Ind Proc, Lanzhou 730050, Peoples R China; |
推荐引用方式 GB/T 7714 | Song, Zhaoyang,Zhao, Xiaoqiang,Hui, Yongyong,et al. Progressive back-projection network for COVID-CT super-resolution[J]. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE,2021,208. |
APA | Song, Zhaoyang,Zhao, Xiaoqiang,Hui, Yongyong,&Jiang, Hongmei.(2021).Progressive back-projection network for COVID-CT super-resolution.COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE,208. |
MLA | Song, Zhaoyang,et al."Progressive back-projection network for COVID-CT super-resolution".COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 208(2021). |
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