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Anomaly detection in industrial visual inspection is challenging due to the scarcity of defective samples. Most existing methods rely on unsupervised reconstruction using only normal data, often resulting in overfitting and poor detection…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Amirhossein Khadivi Noghredeh , Abdollah Safari , Fatemeh Ziaeetabar , Firoozeh Haghighi

Recently, the dense correlation volume method achieves state-of-the-art performance in optical flow. However, the correlation volume computation requires a lot of memory, which makes prediction difficult on high-resolution images. In this…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Zihua Zheng , Ni Nie , Zhi Ling , Pengfei Xiong , Jiangyu Liu , Hao Wang , Jiankun Li

Optical Flow (OF) is the movement pattern of pixels or edges that is caused in a visual scene by the relative motion between an agent and a scene. OF is used in a wide range of computer vision algorithms and robotics applications. While the…

Image and Video Processing · Electrical Eng. & Systems 2023-09-25 Jonas Kühne , Michele Magno , Luca Benini

Visual Anomaly Detection (VAD) has gained significant research attention for its ability to identify anomalous images and pinpoint the specific areas responsible for the anomaly. A key advantage of VAD is its unsupervised nature, which…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Manuel Barusco , Francesco Borsatti , Davide Dalle Pezze , Francesco Paissan , Elisabetta Farella , Gian Antonio Susto

Machine learning is increasingly critical for analysis of the ever-growing corpora of overhead imagery. Advanced computer vision object detection techniques have demonstrated great success in identifying objects of interest such as ships,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Adam Van Etten

Scene flow estimation, which aims to predict per-point 3D displacements of dynamic scenes, is a fundamental task in the computer vision field. However, previous works commonly suffer from unreliable correlation caused by locally constrained…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Jiuming Liu , Guangming Wang , Weicai Ye , Chaokang Jiang , Jinru Han , Zhe Liu , Guofeng Zhang , Dalong Du , Hesheng Wang

Efficient and accurate detection of small objects in manufacturing settings, such as defects and cracks, is crucial for ensuring product quality and safety. To address this issue, we proposed a comprehensive strategy by synergizing Faster…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Md Sohag Mia , Abdullah Al Bary Voban , Abu Bakor Hayat Arnob , Abdu Naim , Md Kawsar Ahmed , Md Shariful Islam

Humans recognize anomalies through two aspects: larger patch-wise representation discrepancies and weaker patch-to-normal-patch correlations. However, the previous AD methods didn't sufficiently combine the two complementary aspects to…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Xincheng Yao , Ruoqi Li , Zefeng Qian , Yan Luo , Chongyang Zhang

Anomaly detection in multivariate time series is challenging as heterogeneous subsequence anomalies may occur. Reconstruction-based methods, which focus on learning normal patterns in the frequency domain to detect diverse abnormal…

Machine Learning · Computer Science 2025-05-09 Xingjian Wu , Xiangfei Qiu , Zhengyu Li , Yihang Wang , Jilin Hu , Chenjuan Guo , Hui Xiong , Bin Yang

High-fidelity flow simulations are indispensable when analyzing systems exhibiting multiphase flow phenomena. The accuracy of multiphase flow simulations is strongly contingent upon the finest mesh resolution used to represent the…

Computational Physics · Physics 2023-04-05 Kumar Saurabh , Masado Ishii , Makrand A. Khanwale , Hari Sundar , Baskar Ganapathysubramanian

In the domain of computer vision, optical flow stands as a cornerstone for unraveling dynamic visual scenes. However, the challenge of accurately estimating optical flow under conditions of large nonlinear motion patterns remains an open…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Chanuka Algama , Kasun Amarasinghe

Anomaly detection is a critical problem in the manufacturing industry. In many applications, images of objects to be analyzed are captured from multiple perspectives which can be exploited to improve the robustness of anomaly detection. In…

Computer Vision and Pattern Recognition · Computer Science 2021-09-01 Peter Jakob , Manav Madan , Tobias Schmid-Schirling , Abhinav Valada

Visual Anomaly Detection (VAD) is a critical task for many applications including industrial inspection and healthcare. While VAD has been extensively studied, two key challenges remain largely unaddressed in conjunction: edge deployment,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Manuel Barusco , Francesco Borsatti , David Petrovic , Davide Dalle Pezze , Gian Antonio Susto

Anomaly detection is a critical task in industrial manufacturing, aiming to identify defective parts of products. Most industrial anomaly detection methods assume the availability of sufficient normal data for training. This assumption may…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Zhenyu Yan , Qingqing Fang , Wenxi Lv , Qinliang Su

Accurate fall detection for the assistance of older people is crucial to reduce incidents of deaths or injuries due to falls. Meanwhile, a vision-based fall detection system has shown some significant results to detect falls. Still,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Sagar Chhetri , Abeer Alsadoon , Thair Al Dala in , P. W. C. Prasad , Tarik A. Rashid , Angelika Maag

In video based face recognition, face images are typically captured over multiple frames in uncontrolled conditions, where head pose, illumination, shadowing, motion blur and focus change over the sequence. Additionally, inaccuracies in…

Computer Vision and Pattern Recognition · Computer Science 2014-03-17 Yongkang Wong , Shaokang Chen , Sandra Mau , Conrad Sanderson , Brian C. Lovell

Zero-shot anomaly classification (AC) and segmentation (AS) methods aim to identify and outline defects without using any labeled samples. In this paper, we reveal a key property that is overlooked by existing methods: normal image patches…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Xurui Li , Feng Xue , Yu Zhou

Micro Crack detection using deep neural networks (DNNs) through an automated pipeline using wave fields interacting with the damaged areas is highly sought after. These high-dimensional spatio-temporal crack data are limited, and these…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Fatahlla Moreh , Yusuf Hasan , Bilal Zahid Hussain , Mohammad Ammar , Sven Tomforde

This paper presents a novel method for detecting scene changes from a pair of images with a difference of camera viewpoints using a dense optical flow based change detection network. In the case that camera poses of input images are fixed…

Computer Vision and Pattern Recognition · Computer Science 2017-12-11 Ken Sakurada , Weimin Wang , Nobuo Kawaguchi , Ryosuke Nakamura

Machine failures decrease up-time and can lead to extra repair costs or even to human casualties and environmental pollution. Recent condition monitoring techniques use artificial intelligence in an effort to avoid time-consuming manual…

Machine Learning · Computer Science 2020-01-14 Kilian Hendrickx , Wannes Meert , Yves Mollet , Johan Gyselinck , Bram Cornelis , Konstantinos Gryllias , Jesse Davis
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