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Training robust deep learning models is crucial in Earth Observation, where globally deployed models often face distribution shifts that degrade performance, especially in low-data regions. Out-of-distribution (OOD) detection addresses this…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Burak Ekim , Girmaw Abebe Tadesse , Caleb Robinson , Gilles Hacheme , Michael Schmitt , Rahul Dodhia , Juan M. Lavista Ferres

Unsupervised out-of-distribution (U-OOD) detection is to identify OOD data samples with a detector trained solely on unlabeled in-distribution (ID) data. The likelihood function estimated by a deep generative model (DGM) could be a natural…

Machine Learning · Statistics 2024-09-09 Yewen Li , Chaojie Wang , Xiaobo Xia , Xu He , Ruyi An , Dong Li , Tongliang Liu , Bo An , Xinrun Wang

We introduce an adaptive method with formal quality guarantees for weak supervision in a non-stationary setting. Our goal is to infer the unknown labels of a sequence of data by using weak supervision sources that provide independent noisy…

Machine Learning · Computer Science 2025-05-05 Alessio Mazzetto , Reza Esfandiarpoor , Akash Singirikonda , Eli Upfal , Stephen H. Bach

With the sweeping digitalization of societal, medical, industrial, and scientific processes, sensing technologies are being deployed that produce increasing volumes of time series data, thus fueling a plethora of new or improved…

Machine Learning · Computer Science 2024-04-23 David Campos , Tung Kieu , Chenjuan Guo , Feiteng Huang , Kai Zheng , Bin Yang , Christian S. Jensen

Urban change is a constant process that influences the perception of neighbourhoods and the lives of the people within them. The field of Urban Scene Change Detection (USCD) aims to capture changes in street scenes using computer vision and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Tim Alpherts , Sennay Ghebreab , Nanne van Noord

Deep learning (DL) based supervised change detection (CD) models require large labeled training data. Due to the difficulty of collecting labeled multi-temporal data, unsupervised methods are preferred in the CD literature. However,…

Machine Learning · Computer Science 2021-04-13 Sudipan Saha , Biplab Banerjee , Xiao Xiang Zhu

Scene understanding is a pivotal task for autonomous vehicles to safely navigate in the environment. Recent advances in deep learning enable accurate semantic reconstruction of the surroundings from LiDAR data. However, these models…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Borna Bešić , Nikhil Gosala , Daniele Cattaneo , Abhinav Valada

Unsupervised domain adaptation (UDA) has been successfully applied to transfer knowledge from a labeled source domain to target domains without their labels. Recently introduced transferable prototypical networks (TPN) further addresses…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Xiaofeng Liu , Fangxu Xing , Jia You , Jun Lu , C. -C. Jay Kuo , Georges El Fakhri , Jonghye Woo

Out-of-distribution (OOD) detection is crucial for model reliability, as it identifies samples from unknown classes and reduces errors due to unexpected inputs. Vision-Language Models (VLMs) such as CLIP are emerging as powerful tools for…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Yabin Zhang , Wenjie Zhu , Chenhang He , Lei Zhang

In this study, we propose a novel remote sensing change detection task, non-registration change detection, to address the increasing number of emergencies such as natural disasters, anthropogenic accidents, and military strikes. First, in…

Computer Vision and Pattern Recognition · Computer Science 2025-05-16 Zhe Shan , Lei Zhou , Liu Mao , Shaofan Chen , Chuanqiu Ren , Xia Xie

We present an automated vision-based system for defect detection and classification of laser power meter sensor coatings. Our approach addresses the critical challenge of identifying coating defects such as thermal damage and scratches that…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Dongqi Zheng , Wenjin Fu , Guangzong Chen

Change Detection (CD) is a fundamental task in remote sensing. It monitors the evolution of land cover over time. Based on this, Open-Vocabulary Change Detection (OVCD) introduces a new requirement. It aims to reduce the reliance on…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Xu Zhang , Danyang Li , Yingjie Xia , Xiaohang Dong , Hualong Yu , Jianye Wang , Qicheng Li

Existing industrial anomaly detection methods mainly determine whether an anomaly is present. However, real-world applications also require discovering and classifying multiple anomaly types. Since industrial anomalies are semantically…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Botong Zhao , Qijun Shi , Shujing Lyu , Yue Lu

Positive and Unlabeled (PU) learning, a binary classification model trained with only positive and unlabeled data, generally suffers from overfitted risk estimation due to inconsistent data distributions. To address this, we introduce a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Chengjie Wang , Chengming Xu , Zhenye Gan , Jianlong Hu , Wenbing Zhu , Lizhuag Ma

Open-World Object Detection (OWOD) extends object detection problem to a realistic and dynamic scenario, where a detection model is required to be capable of detecting both known and unknown objects and incrementally learning newly…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Ruohuan Fang , Guansong Pang , Lei Zhou , Xiao Bai , Jin Zheng

Humans do not memorize everything. Thus, humans recognize scene changes by exploring the past images. However, available past (i.e., reference) images typically represent nearby viewpoints of the present (i.e., query) scene, rather than the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Kyusik Cho , Suhan Woo , Hongje Seong , Euntai Kim

In this work, we present a novel approach to transform supervised classifiers into effective unsupervised anomaly detectors. The method we have developed, termed Discriminatory Detection of Distortions (DDD), enhances anomaly detection by…

Weakly-Supervised Change Detection (WSCD) aims to distinguish specific object changes (e.g., objects appearing or disappearing) from background variations (e.g., environmental changes due to light, weather, or seasonal shifts) in paired…

Computer Vision and Pattern Recognition · Computer Science 2025-12-15 Zhenghui Zhao , Chen Wu , Di Wang , Hongruixuan Chen , Cuiqun Chen , Zhuo Zheng , Bo Du , Liangpei Zhang

Unsupervised domain adaptation aims to address the problem of classifying unlabeled samples from the target domain whilst labeled samples are only available from the source domain and the data distributions are different in these two…

Machine Learning · Computer Science 2019-11-20 Qian Wang , Toby P. Breckon

Concept drift detection is a crucial task in data stream evolving environments. Most of state of the art approaches designed to tackle this problem monitor the loss of predictive models. However, this approach falls short in many real-world…

Machine Learning · Computer Science 2021-03-09 Vitor Cerqueira , Heitor Murilo Gomes , Albert Bifet , Luis Torgo