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arxiv 2006.16067 v2 pith:P54EGD6T submitted 2020-06-29 cs.CV

Patch SVDD: Patch-level SVDD for Anomaly Detection and Segmentation

classification cs.CV
keywords anomalydetectionsegmentationmethodsvddimagelearningproposed
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this paper, we address the problem of image anomaly detection and segmentation. Anomaly detection involves making a binary decision as to whether an input image contains an anomaly, and anomaly segmentation aims to locate the anomaly on the pixel level. Support vector data description (SVDD) is a long-standing algorithm used for an anomaly detection, and we extend its deep learning variant to the patch-based method using self-supervised learning. This extension enables anomaly segmentation and improves detection performance. As a result, anomaly detection and segmentation performances measured in AUROC on MVTec AD dataset increased by 9.8% and 7.0%, respectively, compared to the previous state-of-the-art methods. Our results indicate the efficacy of the proposed method and its potential for industrial application. Detailed analysis of the proposed method offers insights regarding its behavior, and the code is available online.

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