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Image anomaly detection consists in detecting images or image portions that are visually different from the majority of the samples in a dataset. The task is of practical importance for various real-life applications like biomedical image…

计算机视觉与模式识别 · 计算机科学 2022-10-28 Axel De Nardin , Pankaj Mishra , Gian Luca Foresti , Claudio Piciarelli

Domain generalization (DG) task aims to learn a robust model from source domains that could handle the out-of-distribution (OOD) issue. In order to improve the generalization ability of the model in unseen domains, increasing the diversity…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Shanshan Wang , ALuSi , Xun Yang , Ke Xu , Huibin Tan , Xingyi Zhang

Object recognition is a key enabler across industry and defense. As technology changes, algorithms must keep pace with new requirements and data. New modalities and higher resolution sensors should allow for increased algorithm robustness.…

计算机视觉与模式识别 · 计算机科学 2020-12-24 Samuel Rivera , Joel Klipfel , Deborah Weeks

A Convolutional Neural Network (CNN) is sometimes confronted with objects of changing appearance ( new instances) that exceed its generalization capability. This requires the CNN to incorporate new knowledge, i.e., to learn incrementally.…

计算机视觉与模式识别 · 计算机科学 2020-11-12 Tobias Scheck , Ana Perez Grassi , Gangolf Hirtz

Graph anomaly detection (GAD) has garnered increasing attention in recent years, yet remains challenging due to two key factors: (1) label scarcity stemming from the high cost of annotations and (2) homophily disparity at node and class…

机器学习 · 计算机科学 2026-01-30 Yunhui Liu , Jiashun Cheng , Yiqing Lin , Qizhuo Xie , Jia Li , Fugee Tsung , Hongzhi Yin , Tao Zheng , Jianhua Zhao , Tieke He

Defect detection is a critical research area in artificial intelligence. Recently, synthetic data-based self-supervised learning has shown great potential on this task. Although many sophisticated synthesizing strategies exist, little…

计算机视觉与模式识别 · 计算机科学 2023-10-12 Yuxuan Cai , Dingkang Liang , Dongliang Luo , Xinwei He , Xin Yang , Xiang Bai

Unsupervised detection of anomaly points in time series is a challenging problem, which requires the model to derive a distinguishable criterion. Previous methods tackle the problem mainly through learning pointwise representation or…

机器学习 · 计算机科学 2022-06-30 Jiehui Xu , Haixu Wu , Jianmin Wang , Mingsheng Long

Few-shot graph anomaly detection (GAD) has recently garnered increasing attention, which aims to discern anomalous patterns among abundant unlabeled test nodes under the guidance of a limited number of labeled training nodes. Existing…

机器学习 · 计算机科学 2024-10-14 Jiazhen Chen , Sichao Fu , Zhibin Zhang , Zheng Ma , Mingbin Feng , Tony S. Wirjanto , Qinmu Peng

Domain adaptation, a pivotal branch of transfer learning, aims to enhance the performance of machine learning models when deployed in target domains with distinct data distributions. This is particularly critical for object detection tasks,…

计算机视觉与模式识别 · 计算机科学 2025-01-07 Helia Mohamadi , Mohammad Ali Keyvanrad , Mohammad Reza Mohammadi

Unsupervised industrial anomaly detection (UAD) is essential for modern manufacturing inspection, where defect samples are scarce and reliable detection is required. In this paper, we propose HLGFA, a high-low resolution guided feature…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Han Zhou , Yuxuan Gao , Yinchao Du , Xuezhe Zheng

Multi-Source Unsupervised Domain Adaptation (multi-source UDA) aims to learn a model from several labeled source domains while performing well on a different target domain where only unlabeled data are available at training time. To align…

计算机视觉与模式识别 · 计算机科学 2021-09-28 Marin Scalbert , Maria Vakalopoulou , Florent Couzinié-Devy

Conventional object detection models inevitably encounter a performance drop as the domain disparity exists. Unsupervised domain adaptive object detection is proposed recently to reduce the disparity between domains, where the source domain…

计算机视觉与模式识别 · 计算机科学 2020-07-06 Zhenwei He , Lei Zhang

Convolutional neural networks (CNNs) have been recently used for a variety of histology image analysis. However, availability of a large dataset is a major prerequisite for training a CNN which limits its use by the computational pathology…

计算机视觉与模式识别 · 计算机科学 2018-03-07 Ruqayya Awan , Navid Alemi Koohbanani , Muhammad Shaban , Anna Lisowska , Nasir Rajpoot

Transfer learning through fine-tuning a pre-trained neural network with an extremely large dataset, such as ImageNet, can significantly accelerate training while the accuracy is frequently bottlenecked by the limited dataset size of the new…

机器学习 · 计算机科学 2020-05-14 Xingjian Li , Haoyi Xiong , Hanchao Wang , Yuxuan Rao , Liping Liu , Zeyu Chen , Jun Huan

Transformer-based methods have achieved remarkable results in image super-resolution tasks because they can capture non-local dependencies in low-quality input images. However, this feature-intensive modeling approach is computationally…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Wei Long , Xingyu Zhou , Leheng Zhang , Shuhang Gu

Although unsupervised generative modeling of an image dataset using a Variational AutoEncoder (VAE) has been used to detect anomalous images, or anomalous regions in images, recent works have shown that this method often identifies images…

计算机视觉与模式识别 · 计算机科学 2020-08-13 David Dehaene , Pierre Eline

3D anomaly detection (AD) is a crucial task in computer vision, aiming to identify anomalous points or regions from point cloud data. However, existing methods may encounter challenges when handling point clouds with changes in orientation…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Hanzhe Liang , Jie Zhou , Can Gao , Bingyang Guo , Jinbao Wang , Linlin Shen

Aggregating information from features across different layers is an essential operation for dense prediction models. Despite its limited expressiveness, feature concatenation dominates the choice of aggregation operations. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2023-01-20 Yung-Hsu Yang , Thomas E. Huang , Min Sun , Samuel Rota Bulò , Peter Kontschieder , Fisher Yu

Anomaly Detection is an important problem within computer vision, having variety of real-life applications. Yet, the current set of solutions to this problem entail known, systematic shortcomings. Specifically, contemporary surface Anomaly…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Riya Sadrani , Hrishikesh Sharma , Ayush Bachan

Convolutional neural networks (CNN) have improved speech recognition performance greatly by exploiting localized time-frequency patterns. But these patterns are assumed to appear in symmetric and rigid kernels by the conventional CNN…

音频与语音处理 · 电气工程与系统科学 2025-06-19 Jiamin Xie , John H. L. Hansen