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We introduce a new task called Referring Atomic Video Action Recognition (RAVAR), aimed at identifying atomic actions of a particular person based on a textual description and the video data of this person. This task differs from…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Kunyu Peng , Jia Fu , Kailun Yang , Di Wen , Yufan Chen , Ruiping Liu , Junwei Zheng , Jiaming Zhang , M. Saquib Sarfraz , Rainer Stiefelhagen , Alina Roitberg

This paper presents the development of a comprehensive dataset capturing interactions between Autonomous Vehicles (AVs) and traffic control devices, specifically traffic lights and stop signs. Derived from the Waymo Motion dataset, our work…

Robotics · Computer Science 2025-12-24 Zheng Li , Zhipeng Bao , Haoming Meng , Haotian Shi , Qianwen Li , Handong Yao , Xiaopeng Li

Activity detection is one of the attractive computer vision tasks to exploit the video streams captured by widely installed cameras. Although achieving impressive performance, conventional activity detection algorithms are usually designed…

Computer Vision and Pattern Recognition · Computer Science 2022-01-17 Lijun Yu , Yijun Qian , Wenhe Liu , Alexander G. Hauptmann

Video anomaly detection (VAD) has been extensively studied. However, research on egocentric traffic videos with dynamic scenes lacks large-scale benchmark datasets as well as effective evaluation metrics. This paper proposes traffic anomaly…

Computer Vision and Pattern Recognition · Computer Science 2020-04-08 Yu Yao , Xizi Wang , Mingze Xu , Zelin Pu , Ella Atkins , David Crandall

Video activity recognition has become increasingly important in robots and embodied AI. Recognizing continuous video activities poses considerable challenges due to the fast expansion of streaming video, which contains multi-scale and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Hao Wu , Donglin Bai , Shiqi Jiang , Qianxi Zhang , Yifan Yang , Xin Ding , Ting Cao , Yunxin Liu , Fengyuan Xu

Air traffic control (ATC) is a safety-critical service system that demands constant attention from ground air traffic controllers (ATCos) to maintain daily aviation operations. The workload of the ATCos can have negative effects on…

Machine Learning · Computer Science 2023-07-25 Yutian Pang , Jueming Hu , Christopher S. Lieber , Nancy J. Cooke , Yongming Liu

Storing network traffic data is key to efficient network management; however, it is becoming more challenging and costly due to the ever-increasing data transmission rates, traffic volumes, and connected devices. In this paper, we explore…

Networking and Internet Architecture · Computer Science 2023-11-10 Paul Almasan , Krzysztof Rusek , Shihan Xiao , Xiang Shi , Xiangle Cheng , Albert Cabellos-Aparicio , Pere Barlet-Ros

Weakly-supervised temporal action localization aims to recognize and localize action segments in untrimmed videos given only video-level action labels for training. Without the boundary information of action segments, existing methods…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Bo He , Xitong Yang , Le Kang , Zhiyu Cheng , Xin Zhou , Abhinav Shrivastava

This paper offers openly available microscopic vehicle trajectory (MVT) datasets collected using unmanned aerial vehicles (UAVs) in heterogeneous, area-based urban traffic conditions. Traditional roadside video collection often fails in…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Yawar Ali , K. Ramachandra Rao , Ashish Bhaskar , Niladri Chatterjee

Temporal action segmentation (TAS) in videos aims at densely identifying video frames in minutes-long videos with multiple action classes. As a long-range video understanding task, researchers have developed an extended collection of…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Guodong Ding , Fadime Sener , Angela Yao

Videos capture events that typically contain multiple sequential, and simultaneous, actions even in the span of only a few seconds. However, most large-scale datasets built to train models for action recognition in video only provide a…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Mathew Monfort , Bowen Pan , Kandan Ramakrishnan , Alex Andonian , Barry A McNamara , Alex Lascelles , Quanfu Fan , Dan Gutfreund , Rogerio Feris , Aude Oliva

When applied to autonomous vehicle (AV) settings, action recognition can enhance an environment model's situational awareness. This is especially prevalent in scenarios where traditional geometric descriptions and heuristics in AVs are…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Eddy Zhou , Alex Zhuang , Alikasim Budhwani , Owen Leather , Rowan Dempster , Quanquan Li , Mohammad Al-Sharman , Derek Rayside , William Melek

In this paper, we address the challenge of fine-grained video event understanding in traffic scenarios, vital for autonomous driving and safety. Traditional datasets focus on driver or vehicle behavior, often neglecting pedestrian…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Quan Kong , Yuki Kawana , Rajat Saini , Ashutosh Kumar , Jingjing Pan , Ta Gu , Yohei Ozao , Balazs Opra , David C. Anastasiu , Yoichi Sato , Norimasa Kobori

Smart traffic engineering and intelligent transportation services are in increasing demand from governmental authorities to optimize traffic performance and thus reduce energy costs, increase the drivers' safety and comfort, ensure traffic…

Computer Vision and Pattern Recognition · Computer Science 2023-03-02 Bilel Benjdira , Anis Koubaa , Ahmad Taher Azar , Zahid Khan , Adel Ammar , Wadii Boulila

Data association is an essential part in the tracking-by-detection based Multi-Object Tracking (MOT). Most trackers focus on how to design a better data association strategy to improve the tracking performance. The rule-based handcrafted…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Song Guo , Rujie Liu , Narishige Abe

The goal of video anomaly detection is tantamount to performing spatio-temporal localization of abnormal events in the video. The multiscale temporal dependencies, visual-semantic heterogeneity, and the scarcity of labeled data exhibited by…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Dezhi An , Wenqiang Liu , Kefan Wang , Zening Chen , Jun Lu , Shengcai Zhang

Current state-of-the-art human action recognition is focused on the classification of temporally trimmed videos in which only one action occurs per frame. In this work we address the problem of action localisation and instance segmentation…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Suman Saha , Gurkirt Singh , Michael Sapienza , Philip H. S. Torr , Fabio Cuzzolin

Autonomous Vehicle (AV) perception systems require more than simply seeing, via e.g., object detection or scene segmentation. They need a holistic understanding of what is happening within the scene for safe interaction with other road…

Computer Vision and Pattern Recognition · Computer Science 2024-11-11 Salman Khan , Izzeddin Teeti , Reza Javanmard Alitappeh , Mihaela C. Stoian , Eleonora Giunchiglia , Gurkirt Singh , Andrew Bradley , Fabio Cuzzolin

This paper presents a new large-scale dataset for recognition and temporal localization of human actions collected from Web videos. We refer to it as HACS (Human Action Clips and Segments). We leverage both consensus and disagreement among…

Computer Vision and Pattern Recognition · Computer Science 2019-09-05 Hang Zhao , Antonio Torralba , Lorenzo Torresani , Zhicheng Yan

Temporal video segmentation and classification have been advanced greatly by public benchmarks in recent years. However, such research still mainly focuses on human actions, failing to describe videos in a holistic view. In addition,…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Jie Jiang , Zhimin Li , Jiangfeng Xiong , Rongwei Quan , Qinglin Lu , Wei Liu