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The potential of using remote sensing imagery for environmental modelling and for providing real time support to humanitarian operations such as hurricane relief efforts is well established. These applications are substantially affected by…

Image and Video Processing · Electrical Eng. & Systems 2019-11-01 Michael Zotov , Jevgenij Gamper

Previous studies on event camera sensing have demonstrated certain detection performance using dense event representations. However, the accumulated noise in such dense representations has received insufficient attention, which degrades the…

Robotics · Computer Science 2025-06-12 Yangjie Cui , Boyang Gao , Yiwei Zhang , Xin Dong , Jinwu Xiang , Daochun Li , Zhan Tu

Recently a category of tracking methods based on "tracking-by-detection" is widely used in visual tracking problem. Most of these methods update the classifier online using the samples generated by the tracker to handle the appearance…

Computer Vision and Pattern Recognition · Computer Science 2019-03-20 Yuefeng Chen , Qing Wang

Robust traffic sign detection and recognition (TSDR) is of paramount importance for the successful realization of autonomous vehicle technology. The importance of this task has led to a vast amount of research efforts and many promising…

Image and Video Processing · Electrical Eng. & Systems 2020-06-05 Sabbir Ahmed , Uday Kamal , Md. Kamrul Hasan

High-quality point cloud data is a critical foundation for tasks such as autonomous driving and 3D reconstruction. However, LiDAR-based point cloud acquisition is often affected by various disturbances, resulting in a large number of noise…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Ge Zhang , Chunyang Wang , Bin Liu , Guan Xi

As one of the fundamental video tasks in computer vision, Open-Vocabulary Action Recognition (OVAR) recently gains increasing attention, with the development of vision-language pre-trainings. To enable generalization of arbitrary classes,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 Haozhe Cheng , Cheng Ju , Haicheng Wang , Jinxiang Liu , Mengting Chen , Qiang Hu , Xiaoyun Zhang , Yanfeng Wang

Satellite videos provide continuous observations of surface dynamics but pose significant challenges for multi-object tracking (MOT), especially under unstabilized conditions where platform jitter and the weak appearance of tiny objects…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Jiajun Chen , Jing Xiao , Shaohan Cao , Yuming Zhu , Liang Liao , Jun Pan , Mi Wang

With the increasing prevalence of drones in various industries, the navigation and tracking of unmanned aerial vehicles (UAVs) in challenging environments, particularly GNSS-denied areas, have become crucial concerns. To address this need,…

Robotics · Computer Science 2023-10-16 Iacopo Catalano , Xianjia Yu , Jorge Pena Queralta

Reliable positioning is essential for Uncrewed Aerial Vehicles (UAVs) in safety-critical urban operations, yet achieving sub-meter accuracy under stringent latency constraints remains challenging. While 3rd Generation Partnership Project…

Signal Processing · Electrical Eng. & Systems 2026-04-13 Zexin Fang , Bin Han , Anjie Qiu , Zhuojun Tian , Hans D. Schotten

We identify and formalize an underexplored phenomenon in deep learning optimization: directional alignment and loss convergence can be decoupled. An optimizer can exhibit near-perfect directional consistency (cc_t -> 1, measured via…

Machine Learning · Computer Science 2026-05-08 Victor Daniel Gera

Unsupervised Domain Adaptation (UDA) has shown significant advancements in object detection under well-lit conditions; however, its performance degrades notably in low-visibility scenarios, especially at night, posing challenges not only…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Jicheng Yuan , Anh Le-Tuan , Manfred Hauswirth , Danh Le-Phuoc

Recently, much progress has been made in unsupervised denoising learning. However, existing methods more or less rely on some assumptions on the signal and/or degradation model, which limits their practical performance. How to construct an…

Image and Video Processing · Electrical Eng. & Systems 2022-04-29 Wei Wang , Fei Wen , Zeyu Yan , Peilin Liu

Autonomous vehicles (AVs) are expected to revolutionize transportation by improving efficiency and safety. Their success relies on 3D vision systems that effectively sense the environment and detect traffic agents. Among sensors AVs use to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Amirhesam Aghanouri , Cristina Olaverri-Monreal

Direct Volume Rendering (DVR) using Volumetric Path Tracing (VPT) is a scientific visualization technique that simulates light transport with objects' matter using physically-based lighting models. Monte Carlo (MC) path tracing is often…

Graphics · Computer Science 2021-06-16 Jose A. Iglesias-Guitian , Prajita Mane , Bochang Moon

Sound recordings are used in various ecological studies, including acoustic wildlife monitoring. Such surveys require automatic detection of target sound events. However, current detectors, especially those relying on band-limited energy,…

Applications · Statistics 2021-10-13 Julius Juodakis , Stephen Marsland

Images captured from the real world are often affected by different types of noise, which can significantly impact the performance of Computer Vision systems and the quality of visual data. This study presents a novel approach for defect…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Mohsen Hami , Mahdi JameBozorg

Target domain pseudo-labelling has shown effectiveness in unsupervised domain adaptation (UDA). However, pseudo-labels of unlabeled target domain data are inevitably noisy due to the distribution shift between source and target domains.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Zhongying Deng , Da Li , Junjun He , Yi-Zhe Song , Tao Xiang

Automated respiratory sound classification faces practical challenges from background noise and insufficient denoising in existing systems. We propose Adaptive Differential Denoising network, that integrates noise suppression and…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-04 Gaoyang Dong , Zhicheng Zhang , Ping Sun , Minghui Zhang

Stochastic gradient descent (SGD) still is the workhorse for many practical problems. However, it converges slow, and can be difficult to tune. It is possible to precondition SGD to accelerate its convergence remarkably. But many attempts…

Machine Learning · Statistics 2017-02-23 Xi-Lin Li

Programming Knowledge Tracking (PKT) aims to dynamically diagnose learners' mastery levels of programming knowledge based on their coding activities, facilitating more effective and personalized programming education. However, current PKT…

Software Engineering · Computer Science 2025-06-16 Weibo Gao , Qi Liu , Rui Li , Yuze Zhao , Hao Wang , Linan Yre , Fangzhou Yao , Zheng Zhang
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