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• W3138073335 abstract "Current unsupervised anomaly detection and pixel-wise anomaly localisation systems are commonly formulated as one-class classifiers that depend on an effective estimation of the distribution of normal images and robust criteria to identify anomalies. However, the distribution of normal images estimated by current systems tends to be unstable for classes of normal images that are under-represented in the training set, and the anomaly identification criteria commonly explored in the field does not work well for multi-scale structural and non-structural anomalies. In this paper, we introduce a new unsupervised anomaly detection and localisation method designed to address these two issues. More specifically, we introduce a normal image distribution estimation method that is robust to under-represented classes of normal images -- this method is based on adversarially interpolated descriptors from training images and a Gaussian classifier. We also propose a new anomaly identification criterion that can accurately detect and localise multi-scale structural and non-structural anomalies. In extensive experiments on MNIST, Fashion MNIST, CIFAR10, MVTec AD and two medical datasets, our approach shows better results than the current state of the art in the standard experimental setup for unsupervised anomaly detection and localisation. Code is available at this https URL." @default.
• W3138073335 created "2021-03-29" @default.
• W3138073335 creator A5029215323 @default.
• W3138073335 creator A5039104219 @default.
• W3138073335 creator A5048813928 @default.
• W3138073335 creator A5058617327 @default.
• W3138073335 date "2021-01-25" @default.
• W3138073335 modified "2023-09-27" @default.
• W3138073335 title "Unsupervised Anomaly Detection with Multi-scale Interpolated Gaussian Descriptors" @default.
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• W3138073335 hasPublicationYear "2021" @default.

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