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This paper considers few-shot anomaly detection (FSAD), a practical yet under-studied setting for anomaly detection (AD), where only a limited number of normal images are provided for each category at training. So far, existing FSAD studies…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Chaoqin Huang , Haoyan Guan , Aofan Jiang , Ya Zhang , Michael Spratling , Yan-Feng Wang

Within (semi-)automated visual inspection, learning-based approaches for assessing visual defects, including deep neural networks, enable the processing of otherwise small defect patterns in pixel size on high-resolution imagery. The…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 André Luiz B. Vieira e Silva , Francisco Simões , Danny Kowerko , Tobias Schlosser , Felipe Battisti , Veronica Teichrieb

Detecting anomaly patterns from images is a crucial artificial intelligence technique in industrial applications. Recent research in this domain has emphasized the necessity of a large volume of training data, overlooking the practical…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Shenxing Wei , Xing Wei , Zhiheng Ma , Songlin Dong , Shaochen Zhang , Yihong Gong

Cross-Domain Detection (XDD) aims to train an object detector using labeled image from a source domain but have good performance in the target domain with only unlabeled images. Existing approaches achieve this either by aligning the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Kai Li , Curtis Wigington , Chris Tensmeyer , Vlad I. Morariu , Handong Zhao , Varun Manjunatha , Nikolaos Barmpalios , Yun Fu

Autonomous vehicles often have varying camera sensor setups, which is inevitable due to restricted placement options for different vehicle types. Training a perception model on one particular setup and evaluating it on a new, different…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Felix Embacher , David Holtz , Jonas Uhrig , Marius Cordts , Markus Enzweiler

The collection and detection of video anomaly data has long been a challenging problem due to its rare occurrence and spatio-temporal scarcity. Existing video anomaly detection (VAD) methods under perform in open-world scenarios. Key…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Zunkai Dai , Ke Li , Jiajia Liu , Jie Yang , Yuanyuan Qiao

Unsupervised domain adaptation (UDA) in videos is a challenging task that remains not well explored compared to image-based UDA techniques. Although vision transformers (ViT) achieve state-of-the-art performance in many computer vision…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 André Sacilotti , Samuel Felipe dos Santos , Nicu Sebe , Jurandy Almeida

Medical vision foundation models remain limited in downstream tasks, particularly volumetric medical image segmentation. While fine-tuning on labeled target-domain data improves performance, existing approaches typically rely on randomly…

Image and Video Processing · Electrical Eng. & Systems 2026-05-07 Jin Yang , Daniel S. Marcus , Aristeidis Sotiras

Unsupervised domain adaptation is one of the challenging problems in computer vision. This paper presents a novel approach to unsupervised domain adaptations based on the optimal transport-based distance. Our approach allows aligning target…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Thanh-Dat Truong , Naga Venkata Sai Raviteja Chappa , Xuan Bac Nguyen , Ngan Le , Ashley Dowling , Khoa Luu

Conventional unsupervised domain adaptation (UDA) studies the knowledge transfer between a limited number of domains. This neglects the more practical scenario where data are distributed in numerous different domains in the real world. The…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Xingchao Peng , Yichen Li , Kate Saenko

Due to the success of Bidirectional Encoder Representations from Transformers (BERT) in natural language process (NLP), the multi-head attention transformer has been more and more prevalent in computer-vision researches (CV). However, it…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Weiqiang Jin , Hang Yu , Hang Yu

In the area of fewshot anomaly detection (FSAD), efficient visual feature plays an essential role in memory bank M-based methods. However, these methods do not account for the relationship between the visual feature and its rotated visual…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Guoyang Xie , Jinbao Wang , Jiaqi Liu , Feng Zheng , Yaochu Jin

Time-series anomaly detection (TSAD) requires identifying both immediate Point Anomalies and long-range Context Anomalies. However, existing foundation models face a fundamental trade-off: 1D temporal models provide fine-grained pointwise…

Computer Vision and Pattern Recognition · Computer Science 2026-02-19 Yingyuan Yang , Tian Lan , Yifei Gao , Yimeng Lu , Wenjun He , Meng Wang , Chenghao Liu , Chen Zhang

This technical report introduces the winning solution of the team Segment Any Anomaly for the CVPR2023 Visual Anomaly and Novelty Detection (VAND) challenge. Going beyond uni-modal prompt, e.g., language prompt, we present a novel…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Yunkang Cao , Xiaohao Xu , Chen Sun , Yuqi Cheng , Liang Gao , Weiming Shen

Recently, adversarial-based domain adaptive object detection (DAOD) methods have been developed rapidly. However, there are two issues that need to be resolved urgently. Firstly, numerous methods reduce the distributional shifts only by…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Chengyang Liang , Zixiang Zhao , Junmin Liu , Jiangshe Zhang

Deep learning models such as convolutional neural networks and transformers have been widely applied to solve 3D object detection problems in the domain of autonomous driving. While existing models have achieved outstanding performance on…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Ruixiao Zhang , Juheon Lee , Xiaohao Cai , Adam Prugel-Bennett

Industrial anomaly detection (IAD) is crucial for automating industrial quality inspection. The diversity of the datasets is the foundation for developing comprehensive IAD algorithms. Existing IAD datasets focus on the diversity of data…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Zilong Zhang , Zhibin Zhao , Xingwu Zhang , Chuang Sun , Xuefeng Chen

Unsupervised domain adaptation (UDA) is vital for alleviating the workload of labeling 3D point cloud data and mitigating the absence of labels when facing a newly defined domain. Various methods of utilizing images to enhance the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Jingyi Xu , Weidong Yang , Lingdong Kong , Youquan Liu , Rui Zhang , Qingyuan Zhou , Ben Fei

Unsupervised anomaly detection (UAD) aims to detect anomalies without labeled data, a necessity in many machine learning applications where anomalous samples are rare or not available. Most state-of-the-art methods fall into two categories:…

Machine Learning · Computer Science 2025-07-30 Nicolas Pinon , Carole Lartizien

In the object detection task, CNN (Convolutional neural networks) models always need a large amount of annotated examples in the training process. To reduce the dependency of expensive annotations, few-shot object detection has become an…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Yuewen Li , Wenquan Feng , Shuchang Lyu , Qi Zhao , Xuliang Li