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To help accelerate progress in multi-target, multi-camera tracking systems, we present (i) a new pair of precision-recall measures of performance that treats errors of all types uniformly and emphasizes correct identification over sources…

Computer Vision and Pattern Recognition · Computer Science 2016-09-20 Ergys Ristani , Francesco Solera , Roger S. Zou , Rita Cucchiara , Carlo Tomasi

Cities increasingly rely on vehicle trajectory data to monitor traffic conditions; however, such data offer only a partial and spatially heterogeneous view of network dynamics and exhibit systematic biases across corridors and time periods.…

Systems and Control · Electrical Eng. & Systems 2026-05-12 Antonina Kosikova , Mehmet Kerem Turkcan , Ahmed Darrat , Andrew Smyth

Despite the widespread deployment of outdoor cameras, their potential for automated analysis remains largely untapped due, in part, to calibration challenges. The absence of precise camera calibration data, including intrinsic and extrinsic…

Computer Vision and Pattern Recognition · Computer Science 2023-11-09 Khiem Vuong , Robert Tamburo , Srinivasa G. Narasimhan

Multiple-object tracking and behavior analysis have been the essential parts of surveillance video analysis for public security and urban management. With billions of surveillance video captured all over the world, multiple-object tracking…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Guojun Yin , Bin Liu , Huihui Zhu , Tao Gong , Nenghai Yu

In urban traffic management, the primary challenge of dynamically and efficiently monitoring traffic conditions is compounded by the insufficient utilization of thousands of surveillance cameras along the intelligent transportation system.…

Systems and Control · Electrical Eng. & Systems 2024-08-19 Tao Li , Zilin Bian , Haozhe Lei , Fan Zuo , Ya-Ting Yang , Quanyan Zhu , Zhenning Li , Kaan Ozbay

Self-supervised feed-forward methods for scene flow estimation offer real-time efficiency, but their supervision from two-frame point correspondences is unreliable and often breaks down under occlusions. Multi-frame supervision has the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Qingwen Zhang , Chenhan Jiang , Xiaomeng Zhu , Yunqi Miao , Yushan Zhang , Olov Andersson , Patric Jensfelt

Mobile agents can autonomously complete user-assigned tasks through GUI interactions. However, existing mainstream evaluation benchmarks, such as AndroidWorld, operate by connecting to a system-level Android emulator and provide evaluation…

Artificial Intelligence · Computer Science 2026-04-14 Yunfei Feng , Xi Zhao , Cheng Zhang , Dahu Feng , Daolin Cheng , Jianqi Yu , Yubin Xia , Erhu Feng

Urban waste management remains a critical challenge for the development of smart cities. Despite the growing number of litter detection datasets, the problem of monitoring overflowing waste containers, particularly from images captured by…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Diogo J. Paulo , João Martins , Hugo Proença , João C. Neves

The integration of Unmanned Aerial Vehicles(UAVs) into Intelligent Transportation Systems (ITS) offers synoptic visibility for traffic monitoring, yet scalable deployment is hindered by trajectory fragmentation, where vehicle identity…

Robotics · Computer Science 2026-05-18 Jianlin Ye , Christos Kyrkou , Panayiotis Kolios

Reliable 3D dynamic perception requires models that can anticipate motion beyond predefined categories, yet progress is hindered by the scarcity of dense, high-quality motion annotations. While self-supervision on unlabeled real data offers…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Qingwen Zhang , Xiaomeng Zhu , Chenhan Jiang , Patric Jensfelt

LiDAR scene flow is the task of estimating per-point 3D motion between consecutive point clouds. Recent methods achieve centimeter-level accuracy on popular autonomous vehicle (AV) datasets, but are typically only trained and evaluated on a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Siyi Li , Qingwen Zhang , Ishan Khatri , Kyle Vedder , Eric Eaton , Deva Ramanan , Neehar Peri

Computer Vision has played a major role in Intelligent Transportation Systems (ITS) and traffic surveillance. Along with the rapidly growing automated vehicles and crowded cities, the automated and advanced traffic management systems (ATMS)…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Mahdi Rezaei , Mohsen Azarmi , Farzam Mohammad Pour Mir

Multi-camera multiple people tracking has become an increasingly important area of research due to the growing demand for accurate and efficient indoor people tracking systems, particularly in settings such as retail, healthcare centers,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-22 Hsiang-Wei Huang , Cheng-Yen Yang , Zhongyu Jiang , Pyong-Kun Kim , Kyoungoh Lee , Kwangju Kim , Samartha Ramkumar , Chaitanya Mullapudi , In-Su Jang , Chung-I Huang , Jenq-Neng Hwang

Scene flow estimation predicts the 3D motion at each point in successive LiDAR scans. This detailed, point-level, information can help autonomous vehicles to accurately predict and understand dynamic changes in their surroundings. Current…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Qingwen Zhang , Yi Yang , Peizheng Li , Olov Andersson , Patric Jensfelt

One-stream Transformer trackers have shown outstanding performance in challenging benchmark datasets over the last three years, as they enable interaction between the target template and search region tokens to extract target-oriented…

Computer Vision and Pattern Recognition · Computer Science 2024-02-14 Janani Kugarajeevan , Thanikasalam Kokul , Amirthalingam Ramanan , Subha Fernando

The rapid urbanization and increasing traffic have serious social, economic, and environmental impact on metropolitan areas worldwide. It is of a great importance to understand the complex interplay of road networks and traffic conditions.…

Other Computer Science · Computer Science 2018-10-31 Weizi Li , Meilei Jiang , Yaoyu Chen , Ming C. Lin

SmartFlow is a multi-layered framework that integrates Reinforcement Learning and Agentic AI to address the dynamic rebalancing problem in urban bike-sharing services. Its architecture separates strategic, tactical, and communication…

Cross-view spatial reasoning is essential for embodied AI, underpinning spatial understanding, mental simulation and planning in complex environments. Existing benchmarks primarily emphasize indoor or street settings, overlooking the unique…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Haotian Xu , Yue Hu , Zhengqiu Zhu , Chen Gao , Ziyou Wang , Junreng Rao , Wenhao Lu , Weishi Li , Quanjun Yin , Yong Li

Traffic light detection is essential for self-driving cars to navigate safely in urban areas. Publicly available traffic light datasets are inadequate for the development of algorithms for detecting distant traffic lights that provide…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Harindu Jayarathne , Tharindu Samarakoon , Hasara Koralege , Asitha Divisekara , Ranga Rodrigo , Peshala Jayasekara

Most existing mobile robotic datasets primarily capture static scenes, limiting their utility for evaluating robotic performance in dynamic environments. To address this, we present a mobile robot oriented large-scale indoor dataset,…

Robotics · Computer Science 2024-12-12 Zeshun Li , Fuhao Li , Wanting Zhang , Zijie Zheng , Xueping Liu , Yongjin Liu , Long Zeng