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The detection of manufacturing errors is crucial in fabrication processes to ensure product quality and safety standards. Since many defects occur very rarely and their characteristics are mostly unknown a priori, their detection is still…

Computer Vision and Pattern Recognition · Computer Science 2020-08-31 Marco Rudolph , Bastian Wandt , Bodo Rosenhahn

Unsupervised anomaly detection methods are at the forefront of industrial anomaly detection efforts and have made notable progress. Previous work primarily used 2D information as input, but multi-modal industrial anomaly detection based on…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Chenyang Bi , Yueyang Li , Haichi Luo

Surface defect detection plays an increasingly important role in manufacturing industry to guarantee the product quality. Many deep learning methods have been widely used in surface defect detection tasks, and have been proven to perform…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Jiahui Cheng , Bin Guo , Jiaqi Liu , Sicong Liu , Guangzhi Wu , Yueqi Sun , Zhiwen Yu

Due to the scarcity and unpredictable nature of defect samples, industrial anomaly detection (IAD) predominantly employs unsupervised learning. However, all unsupervised IAD methods face a common challenge: the inherent bias in normal…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Xin Chen , Liujuan Cao , Shengchuan Zhang , Xiewu Zheng , Yan Zhang

The accurate detection of lesion attributes is meaningful for both the computeraid diagnosis system and dermatologists decisions. However, unlike lesion segmentation and melenoma classification, there are few deep learning methods and…

Image and Video Processing · Electrical Eng. & Systems 2019-10-22 Xinzi He , Baiying Lei , Tianfu Wang

We propose the Part-based Recurrent Multi-view Aggregation network(PREMA) to eliminate the detrimental effects of the practical view defects, such as insufficient view numbers, occlusions or background clutters, and also enhance the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-10 Jiongchao Jin , Huanqiang Xu , Pengliang Ji , Zehao Tang , Zhang Xiong

In the realm of industrial quality inspection, defect detection stands as a critical component, particularly in high-precision, safety-critical sectors such as automotive components aerospace, and medical devices. Traditional methods,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Shuai Li , Shihan Chen , Wanru Geng , Zhaohua Xu , Xiaolu Liu , Can Dong , Zhen Tian , Changlin Chen

Self-supervised feature reconstruction methods have shown promising advances in industrial image anomaly detection and localization. Despite this progress, these methods still face challenges in synthesizing realistic and diverse anomaly…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Ximiao Zhang , Min Xu , Xiuzhuang Zhou

The surface defect detection method based on visual perception has been widely used in industrial quality inspection. Because defect data are not easy to obtain and the annotation of a large number of defect data will waste a lot of…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Qifan Jin , Li Chen

For the sake of recognizing and classifying textile defects, deep learning-based methods have been proposed and achieved remarkable success in single-label textile images. However, detecting multi-label defects in a textile image remains…

Computer Vision and Pattern Recognition · Computer Science 2021-02-02 Bing Wei , Kuangrong Hao , Lei Gao

Inspired by the adaptation phenomenon of neuronal firing, we propose the regularity normalization (RN) as an unsupervised attention mechanism (UAM) which computes the statistical regularity in the implicit space of neural networks under the…

Machine Learning · Computer Science 2021-12-30 Baihan Lin

Detecting subtle defects in window frames, including dents and scratches, is vital for upholding product integrity and sustaining a positive brand perception. Conventional machine vision systems often struggle to identify these defects in…

Image and Video Processing · Electrical Eng. & Systems 2023-09-14 Jorge Vasquez , Hemant K. Sharma , Tomotake Furuhata , Kenji Shimada

Surface defect inspection plays an important role in the process of industrial manufacture and production. Though Convolutional Neural Network (CNN) based defect inspection methods have made huge leaps, they still confront a lot of…

Computer Vision and Pattern Recognition · Computer Science 2024-02-06 Xiaoheng Jiang , Feng Yan , Yang Lu , Ke Wang , Shuai Guo , Tianzhu Zhang , Yanwei Pang , Jianwei Niu , Mingliang Xu

Recent advances in diffusion models have spurred research into their application for Reconstruction-based unsupervised anomaly detection. However, these methods may struggle with maintaining structural integrity and recovering the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Farzad Beizaee , Gregory A. Lodygensky , Christian Desrosiers , Jose Dolz

Overhead line inspection greatly benefits from defect recognition using visible light imagery. Addressing the limitations of existing feature extraction techniques and the heavy data dependency of deep learning approaches, this paper…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Weixi Wang , Xichen Zhong , Xin Li , Sizhe Li , Xun Ma

AI-driven pulse thermography (PT) has become a crucial tool in non-destructive testing (NDT), enabling automatic detection of hidden anomalies in various industrial components. Current state-of-the-art techniques feed segmentation and depth…

Computer Vision and Pattern Recognition · Computer Science 2025-01-20 Mohammed Salah , Naoufel Werghi , Davor Svetinovic , Yusra Abdulrahman

Laser chips, the core components of semiconductor lasers, are extensively utilized in various industries, showing great potential for future application. Smoothness emitting surfaces are crucial in chip production, as even imperceptible…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Pan Liu

Monocular depth estimation is an essential task for scene understanding. The underlying structure of objects and stuff in a complex scene is critical to recovering accurate and visually-pleasing depth maps. Global structure conveys scene…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Xiaotian Chen , Xuejin Chen , Zheng-Jun Zha

In image denoising, deep convolutional neural networks (CNNs) can obtain favorable performance on removing spatially invariant noise. However, many of these networks cannot perform well on removing the real noise (i.e. spatially variant…

Image and Video Processing · Electrical Eng. & Systems 2023-05-09 Wencong Wu , Shijie Liu , Yi Zhou , Yungang Zhang , Yu Xiang

Face super-resolution (FSR) under limited computational budgets remains challenging. Existing methods often treat all facial pixels equally, leading to suboptimal resource allocation and degraded performance. CNNs are sensitive to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Siyu Xu , Wenjie Li , Guangwei Gao , Jian Yang , Guo-Jun Qi , Chia-Wen Lin