Inpainting Transformer for Anomaly Detection

• URL: http://arxiv.org/abs/2104.13897v1
• Date: Wed, 28 Apr 2021 17:27:44 GMT
• Title: Inpainting Transformer for Anomaly Detection
• Authors: Jonathan Pirnay, Keng Chai
• Abstract summary: Inpainting Transformer (InTra) is trained to inpaint covered patches in a large sequence of image patches. InTra achieves better than state-of-the-art results on the MVTec AD dataset for detection and localization.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Anomaly detection in computer vision is the task of identifying images which deviate from a set of normal images. A common approach is to train deep convolutional autoencoders to inpaint covered parts of an image and compare the output with the original image. By training on anomaly-free samples only, the model is assumed to not being able to reconstruct anomalous regions properly. For anomaly detection by inpainting we suggest it to be beneficial to incorporate information from potentially distant regions. In particular we pose anomaly detection as a patch-inpainting problem and propose to solve it with a purely self-attention based approach discarding convolutions. The proposed Inpainting Transformer (InTra) is trained to inpaint covered patches in a large sequence of image patches, thereby integrating information across large regions of the input image. When learning from scratch, InTra achieves better than state-of-the-art results on the MVTec AD [1] dataset for detection and localization.

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