Towards Better Dermoscopic Image Feature Representation Learning for Melanoma Classification

• URL: http://arxiv.org/abs/2207.07303v1
• Date: Fri, 15 Jul 2022 06:07:11 GMT
• Title: Towards Better Dermoscopic Image Feature Representation Learning for Melanoma Classification
• Authors: ChengHui Yu, MingKang Tang, ShengGe Yang, MingQing Wang, Zhe Xu, JiangPeng Yan, HanMo Chen, Yu Yang, Xiao-Jun Zeng, Xiu Li
• Abstract summary: Deep learning-based melanoma classification with dermoscopic images has recently shown great potential in automatic early-stage melanoma diagnosis. In this study, we seek to resolve problems respectively towards better representation learning for lesion features. Specifically, a GAN-based data augmentation (GDA) strategy is adapted to generate synthetic melanoma-positive images, in conjunction with the proposed implicit hair denoising (IHD) strategy. To train the IHD module, the hair noises are additionally labeled on the ISIC 2020 dataset, making it the first large-scale dermoscopic dataset with annotation of hair-like artifacts
• Score: 25.525492490284293
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Deep learning-based melanoma classification with dermoscopic images has recently shown great potential in automatic early-stage melanoma diagnosis. However, limited by the significant data imbalance and obvious extraneous artifacts, i.e., the hair and ruler markings, discriminative feature extraction from dermoscopic images is very challenging. In this study, we seek to resolve these problems respectively towards better representation learning for lesion features. Specifically, a GAN-based data augmentation (GDA) strategy is adapted to generate synthetic melanoma-positive images, in conjunction with the proposed implicit hair denoising (IHD) strategy. Wherein the hair-related representations are implicitly disentangled via an auxiliary classifier network and reversely sent to the melanoma-feature extraction backbone for better melanoma-specific representation learning. Furthermore, to train the IHD module, the hair noises are additionally labeled on the ISIC2020 dataset, making it the first large-scale dermoscopic dataset with annotation of hair-like artifacts. Extensive experiments demonstrate the superiority of the proposed framework as well as the effectiveness of each component. The improved dataset publicly avaliable at https://github.com/kirtsy/DermoscopicDataset.

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