arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2301.07533cs.CV
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皮肤镜图像分布外检测的多尺度框架

A Multi-Scale Framework for Out-of-Distribution Detection in Dermoscopic Images

Fuzhou University(福州大学);Minjiang University(闽江学院);South China University of Technology(华南理工大学)

Zhongzheng Huang, Tao Wang, Yuanzheng Cai, Lingyu Liang

摘要:

通过皮肤镜图像自动检测皮肤疾病可以提高诊断效率,帮助医生做出更准确的判断。然而,传统的皮肤病识别系统可能会对分布外(OOD)数据产生高置信度,这可能成为实际应用中的主要安全漏洞。在本文中,我们提出了一个多尺度检测框架,以检测出的分布的皮肤病图像数据,以确保系统的鲁棒性。我们的框架从神经网络的不同层提取特征。在前几层中,使用校正激活使输出特征更接近行为良好的分布,然后训练单类SVM检测OOD数据;在倒数第二层中,使用自适应Gram矩阵计算校正激活后的特征,最后选择性能最好的层计算正态性得分。实验表明,该框架实现了优越的性能相比,其他国家的最先进的方法在皮肤病识别的任务。

英文摘要:

The automatic detection of skin diseases via dermoscopic images can improve the efficiency in diagnosis and help doctors make more accurate judgments. However, conventional skin disease recognition systems may produce high confidence for out-of-distribution (OOD) data, which may become a major security vulnerability in practical applications. In this paper, we propose a multi-scale detection framework to detect out-of-distribution skin disease image data to ensure the robustness of the system. Our framework extracts features from different layers of the neural network. In the early layers, rectified activation is used to make the output features closer to the well-behaved distribution, and then an one-class SVM is trained to detect OOD data; in the penultimate layer, an adapted Gram matrix is used to calculate the features after rectified activation, and finally the layer with the best performance is chosen to compute a normality score. Experiments show that the proposed framework achieves superior performance when compared with other state-of-the-art methods in the task of skin disease recognition.

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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