Diverse COVID-19 CT Image-to-Image translation with stacked residual dropout

Kin, Wai Lee and Ka, Renee Yin Chin (2022) Diverse COVID-19 CT Image-to-Image translation with stacked residual dropout. Bioengineering, 9. pp. 1-32.

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Abstract

Machine learning models are renowned for their high dependency on a large corpus of data in solving real-world problems, including the recent COVID-19 pandemic. In practice, data acquisition is an onerous process, especially in medical applications, due to lack of data availability for newly emerged diseases and privacy concerns. This study introduces a data synthesization framework (sRD-GAN) that generates synthetic COVID-19 CT images using a novel stacked-residual dropout mechanism (sRD). sRD-GAN aims to alleviate the problem of data paucity by generating synthetic lung medical images that contain precise radiographic annotations. The sRD mechanism is designed using a regularization-based strategy to facilitate perceptually significant instance-level diversity without content-style attribute disentanglement. Extensive experiments show that sRD-GAN can generate exceptional perceptual realism on COVID-19 CT images examined by an experiment radiologist, with an outstanding Fréchet Inception Distance (FID) of 58.68 and Learned Perceptual Image Patch Similarity (LPIPS) of 0.1370 on the test set. In a benchmarking experiment, sRD-GAN shows superior performance compared to GAN, CycleGAN, and one-to-one CycleGAN. The encouraging results achieved by sRD-GAN in different clinical cases, such as community-acquired pneumonia CT images and COVID-19 in X-ray images, suggest that the proposed method can be easily extended to other similar image synthetization problems.

Item Type:	Article
Keyword:	COVID‑19, Image synthesis, Chest computed tomography, Generative adversarial networks
Subjects:	R Medicine > R Medicine (General) > R5-920 Medicine (General) > R858-859.7 Computer applications to medicine. Medical informatics R Medicine > RC Internal medicine > RC31-1245 Internal medicine > RC952-1245 Special situations and conditions > RC1030-1160 Transportation medicine Including automotive, aviation, and space medicine
Department:	FACULTY > Faculty of Engineering
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	21 May 2025 11:08
Last Modified:	21 May 2025 11:08
URI:	https://eprints.ums.edu.my/id/eprint/35557

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