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In this paper, we propose a residual non-local attention network for high-quality image restoration. Without considering the uneven distribution of information in the corrupted images, previous methods are restricted by local convolutional…

计算机视觉与模式识别 · 计算机科学 2019-03-26 Yulun Zhang , Kunpeng Li , Kai Li , Bineng Zhong , Yun Fu

Many unsupervised visual anomaly detection methods train an auto-encoder to reconstruct normal samples and then leverage the reconstruction error map to detect and localize the anomalies. However, due to the powerful modeling and…

计算机视觉与模式识别 · 计算机科学 2024-12-18 Qingqing Fang , Qinliang Su , Wenxi Lv , Wenchao Xu , Jianxing Yu

Anomaly detection is defined as discovering patterns that do not conform to the expected behavior. Previously, anomaly detection was mostly conducted using traditional shallow learning techniques, but with little improvement. As the…

计算机视觉与模式识别 · 计算机科学 2022-12-13 Zhiyuan Liu , Chunjie Cao , Jingzhang Sun

Anomaly detection methods require high-quality features. In recent years, the anomaly detection community has attempted to obtain better features using advances in deep self-supervised feature learning. Surprisingly, a very promising…

计算机视觉与模式识别 · 计算机科学 2021-08-13 Tal Reiss , Niv Cohen , Liron Bergman , Yedid Hoshen

Object-centric learning (OCL) seeks to learn representations that only encode an object, isolated from other objects or background cues in a scene. This approach underpins various aims, including out-of-distribution (OOD) generalization,…

计算机视觉与模式识别 · 计算机科学 2025-04-14 Alexander Rubinstein , Ameya Prabhu , Matthias Bethge , Seong Joon Oh

Few-shot multi-class industrial anomaly detection identifies diverse defects across multiple categories using a single unified model and limited normal samples. Although vision-language models offer strong generalization, modeling multiple…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Runzhi Deng , Yundi Hu , Xinshuang Zhang , Zhao Wang , Xixi Liu , Wang-Zhou Dai , Caifeng Shan , Fang Zhao

Anomaly detection has recently gained increasing attention in the field of computer vision, likely due to its broad set of applications ranging from product fault detection on industrial production lines and impending event detection in…

计算机视觉与模式识别 · 计算机科学 2023-10-06 Neelu Madan , Nicolae-Catalin Ristea , Radu Tudor Ionescu , Kamal Nasrollahi , Fahad Shahbaz Khan , Thomas B. Moeslund , Mubarak Shah

Deep anomaly detection (AD) aims to provide robust and efficient classifiers for one-class and unbalanced settings. However current AD models still struggle on edge-case normal samples and are often unable to keep high performance over…

计算机视觉与模式识别 · 计算机科学 2023-03-10 Loic Jezequel , Ngoc-Son Vu , Jean Beaudet , Aymeric Histace

Although continual learning and anomaly detection have separately been well-studied in previous works, their intersection remains rather unexplored. The present work addresses a learning scenario where a model has to incrementally learn a…

机器学习 · 计算机科学 2022-07-15 Ahmed Frikha , Denis Krompaß , Volker Tresp

Deep neural networks have been extensively studied for undersampled MRI reconstruction. While achieving state-of-the-art performance, they are trained and deployed specifically for one anatomy with limited generalization ability to another…

计算机视觉与模式识别 · 计算机科学 2021-03-10 Xinwen Liu , Jing Wang , Feng Liu , S. Kevin Zhou

Understanding and reconstructing occluded objects is a challenging problem, especially in open-world scenarios where categories and contexts are diverse and unpredictable. Traditional methods, however, are typically restricted to closed…

计算机视觉与模式识别 · 计算机科学 2024-11-21 Jiayang Ao , Yanbei Jiang , Qiuhong Ke , Krista A. Ehinger

Learning discriminative features for effectively separating abnormal events from normality is crucial for weakly supervised video anomaly detection (WS-VAD) tasks. Existing approaches, both video and segment-level label oriented, mainly…

计算机视觉与模式识别 · 计算机科学 2023-02-13 Hang Zhou , Junqing Yu , Wei Yang

Multimodal industrial anomaly detection benefits from integrating RGB appearance with 3D surface geometry, yet existing \emph{unsupervised} approaches commonly rely on memory banks, teacher-student architectures, or fragile fusion schemes,…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Radia Daci , Vito Renò , Cosimo Patruno , Angelo Cardellicchio , Abdelmalik Taleb-Ahmed , Marco Leo , Cosimo Distante

Existing Multivariate Time Series Anomaly Detection (MTSAD) frameworks increasingly rely on integrating Graph Neural Networks (GNNs) with sequence models to capture complex spatio-temporal dependencies. However, less attention is paid to…

人工智能 · 计算机科学 2026-05-19 Suofei Zhang , Yaxuan Zheng , Haifeng Hu

Universal visual anomaly detection (AD) aims to identify anomaly images and segment anomaly regions towards open and dynamic scenarios, following zero- and few-shot paradigms without any dataset-specific fine-tuning. We have witnessed…

计算机视觉与模式识别 · 计算机科学 2026-01-12 Bin-Bin Gao , Chengjie Wang

Unsupervised anomaly detection (UAD) attracts a lot of research interest and drives widespread applications, where only anomaly-free samples are available for training. Some UAD applications intend to further locate the anomalous regions…

计算机视觉与模式识别 · 计算机科学 2023-08-30 Yixuan Zhou , Xing Xu , Jingkuan Song , Fumin Shen , Heng Tao Shen

Unsupervised anomaly detection (UAD) methods are trained with normal (or healthy) images only, but during testing, they are able to classify normal and abnormal (or disease) images. UAD is an important medical image analysis (MIA) method to…

图像与视频处理 · 电气工程与系统科学 2023-08-16 Yu Tian , Fengbei Liu , Guansong Pang , Yuanhong Chen , Yuyuan Liu , Johan W. Verjans , Rajvinder Singh , Gustavo Carneiro

Open-world object detection (OWOD), as a more general and challenging goal, requires the model trained from data on known objects to detect both known and unknown objects and incrementally learn to identify these unknown objects. The…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Shuailei Ma , Yuefeng Wang , Jiaqi Fan , Ying Wei , Thomas H. Li , Hongli Liu , Fanbing Lv

Jointly utilizing global and local features to improve model accuracy is becoming a popular approach for the person re-identification (ReID) problem, because previous works using global features alone have very limited capacity at…

计算机视觉与模式识别 · 计算机科学 2020-09-09 Wenpeng Li , Yongli Sun , Jinjun Wang , Han Xu , Xiangru Yang , Long Cui

Radiography imaging protocols focus on particular body regions, therefore producing images of great similarity and yielding recurrent anatomical structures across patients. Exploiting this structured information could potentially ease the…

图像与视频处理 · 电气工程与系统科学 2024-03-14 Tiange Xiang , Yixiao Zhang , Yongyi Lu , Alan Yuille , Chaoyi Zhang , Weidong Cai , Zongwei Zhou
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