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arXiv 2310.20140eess.IVcs.CV
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利用扩散模型合成糖尿病足溃疡图像

Synthesizing Diabetic Foot Ulcer Images with Diffusion Model

Institute of Biomedical Engineering, University of Toronto(多伦多大学生物医学工程研究所);University Health Network(多伦多大学健康网络);Zivot Limb Preservation Centre, Peter Lougheed Centre(齐沃特肢体保护中心(彼得·劳埃德中心));Cumming School of Medicine, University of Calgary(卡尔加里大学卡明医学院)

Reza Basiri, Karim Manji, Francois Harton, Alisha Poonja, Milos R. Popovic, Shehroz S. Khan

AI总结:

本文研究利用扩散模型合成糖尿病足溃疡(DFU)图像,基于2,000张真实图像训练模型,临床评估显示70%的合成图像被误认为真实,同时发现FID和KID指标与临床判断不一致,表明需探索新的评估方法。

摘要:

糖尿病足溃疡(DFU)是一种需要专门护理的严重皮肤伤口。然而,真实的DFU数据集有限,阻碍了临床培训和研究活动。近年来,生成对抗网络和扩散模型已成为在许多应用中生成具有显著真实感和多样性的合成图像的强大工具。本文探讨了扩散模型在合成DFU图像方面的潜力,并通过临床专家评估其真实性。此外,还考察了Frechet Inception Distance(FID)和Kernel Inception Distance(KID)等评估指标,以评估合成DFU图像的质量。使用包含2,000张DFU图像的数据集训练扩散模型,并通过应用扩散过程生成合成图像。结果表明,扩散模型成功合成了视觉上无法区分的DFU图像。在70%的情况下,临床医生将合成DFU图像标记为真实DFU。然而,临床医生在评定真实图像时表现出比合成图像更高的一致置信度。研究还揭示,FID和KID指标与临床医生的评估并不显著一致,表明需要替代的评估方法。这些发现突显了扩散模型在生成合成DFU图像方面的潜力,以及它们对医学培训项目以及伤口检测和分类研究的影响。

英文摘要:

Diabetic Foot Ulcer (DFU) is a serious skin wound requiring specialized care. However, real DFU datasets are limited, hindering clinical training and research activities. In recent years, generative adversarial networks and diffusion models have emerged as powerful tools for generating synthetic images with remarkable realism and diversity in many applications. This paper explores the potential of diffusion models for synthesizing DFU images and evaluates their authenticity through expert clinician assessments. Additionally, evaluation metrics such as Frechet Inception Distance (FID) and Kernel Inception Distance (KID) are examined to assess the quality of the synthetic DFU images. A dataset of 2,000 DFU images is used for training the diffusion model, and the synthetic images are generated by applying diffusion processes. The results indicate that the diffusion model successfully synthesizes visually indistinguishable DFU images. 70% of the time, clinicians marked synthetic DFU images as real DFUs. However, clinicians demonstrate higher unanimous confidence in rating real images than synthetic ones. The study also reveals that FID and KID metrics do not significantly align with clinicians' assessments, suggesting alternative evaluation approaches are needed. The findings highlight the potential of diffusion models for generating synthetic DFU images and their impact on medical training programs and research in wound detection and classification.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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