arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2209.01779eess.IVcs.CVcs.LG
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使用潜在自编码器的非黑色素瘤皮肤癌的表示学习

Representation Learning for Non-Melanoma Skin Cancer using a Latent Autoencoder

Australian e-Health Research Centre, CSIRO(澳大利亚联邦科学与工业研究组织电子健康研究中心)

Simon Myles Thomas

摘要:

生成学习是表征学习的一个强大工具,在生物医学成像问题上表现出了特别的希望。然而,在这种情况下,从分布中采样是次要的,以找到真实图像的表示,这往往带有标签,并明确表示目标分布的内容和质量。从生成模型忠实地重建图像仍然很困难,特别是那些像组织学图像一样复杂的模型。在这项工作中,结合了两种现有的方法(自动编码器和对抗性潜伏自动编码器),试图提高我们对非黑色素瘤皮肤癌,特别是表皮内癌(IEC)的真实图像进行编码和解码的能力。利用IEC(256 x 256)的高质量图像数据集,这项工作评估了图像重建质量和表示学习的结果。研究表明,对抗性训练可以将基线FID分数从76提高到50,并且表征学习的基准可以提高3%。平滑和现实的插值的形态结构的变化也首次提出,定位表示学习作为一个有前途的方向,在计算病理学的背景下。

英文摘要:

Generative learning is a powerful tool for representation learning, and shows particular promise for problems in biomedical imaging. However, in this context, sampling from the distribution is secondary to finding representations of real images, which often come with labels and explicitly represent the content and quality of the target distribution. It remains difficult to faithfully reconstruct images from generative models, particularly those as complex as histological images. In this work, two existing methods (autoencoders and adversarial latent autoencoders) are combined in attempt to improve our ability to encode and decode real images of non-melanoma skin cancer, specifically intra-epidermal carcinoma (IEC). Utilising a dataset of high-quality images of IEC (256 x 256), this work assesses the result of both image reconstruction quality and representation learning. It is shown that adversarial training can improve baseline FID scores from 76 to 50, and that benchmarks on representation learning can be improved by up to 3%. Smooth and realistic interpolations of the variation in the morphological structure are also presented for the first time, positioning representation learning as a promising direction in the context of computational pathology.

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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