EasyNet: An Easy Network for 3D Industrial Anomaly Detection

• URL: http://arxiv.org/abs/2307.13925v4
• Date: Fri, 1 Sep 2023 02:33:26 GMT
• Title: EasyNet: An Easy Network for 3D Industrial Anomaly Detection
• Authors: Ruitao Chen, Guoyang Xie, Jiaqi Liu, Jinbao Wang, Ziqi Luo, Jinfan Wang, Feng Zheng
• Abstract summary: 3D anomaly detection is an emerging and vital computer vision task in industrial manufacturing. We propose an easy and deployment-friendly network (called EasyNet) without using pre-trained models and memory banks. Experiments show that EasyNet achieves an anomaly detection AUROC of 92.6% without using pre-trained models and memory banks.
• Score: 49.26348455493123
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: 3D anomaly detection is an emerging and vital computer vision task in industrial manufacturing (IM). Recently many advanced algorithms have been published, but most of them cannot meet the needs of IM. There are several disadvantages: i) difficult to deploy on production lines since their algorithms heavily rely on large pre-trained models; ii) hugely increase storage overhead due to overuse of memory banks; iii) the inference speed cannot be achieved in real-time. To overcome these issues, we propose an easy and deployment-friendly network (called EasyNet) without using pre-trained models and memory banks: firstly, we design a multi-scale multi-modality feature encoder-decoder to accurately reconstruct the segmentation maps of anomalous regions and encourage the interaction between RGB images and depth images; secondly, we adopt a multi-modality anomaly segmentation network to achieve a precise anomaly map; thirdly, we propose an attention-based information entropy fusion module for feature fusion during inference, making it suitable for real-time deployment. Extensive experiments show that EasyNet achieves an anomaly detection AUROC of 92.6% without using pre-trained models and memory banks. In addition, EasyNet is faster than existing methods, with a high frame rate of 94.55 FPS on a Tesla V100 GPU.

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