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Accurately detecting and tracking pedestrians in 3D space is challenging due to large variations in rotations, poses and scales. The situation becomes even worse for dense crowds with severe occlusions. However, existing benchmarks either…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Peishan Cong , Xinge Zhu , Feng Qiao , Yiming Ren , Xidong Peng , Yuenan Hou , Lan Xu , Ruigang Yang , Dinesh Manocha , Yuexin Ma

The crowd counting task aims at estimating the number of people located in an image or a frame from videos. Existing methods widely adopt density maps as the training targets to optimize the point-to-point loss. While in testing phase, we…

Computer Vision and Pattern Recognition · Computer Science 2020-05-14 Xiyang Liu , Jie Yang , Wenrui Ding

This paper presents a Convolutional Neural Network (CNN) approach for counting and locating objects in high-density imagery. To the best of our knowledge, this is the first object counting and locating method based on a feature map…

Vehicular object detection is the heart of any intelligent traffic system. It is essential for urban traffic management. R-CNN, Fast R-CNN, Faster R-CNN and YOLO were some of the earlier state-of-the-art models. Region based CNN methods…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Raian Rahman , Zadid Bin Azad , Md. Bakhtiar Hasan

In this paper, we tackle the problem of Crowd Counting, and present a crowd density estimation based approach for obtaining the crowd count. Most of the existing crowd counting approaches rely on local features for estimating the crowd…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Viresh Ranjan , Mubarak Shah , Minh Hoai Nguyen

We present a method of estimating the number of people in high density crowds from still images. The method estimates counts by fusing information from multiple sources. Most of the existing work on crowd counting deals with very small…

Computer Vision and Pattern Recognition · Computer Science 2015-07-31 Ankan Bansal , K. S. Venkatesh

Background noise and scale variation are common problems that have been long recognized in crowd counting. Humans glance at a crowd image and instantly know the approximate number of human and where they are through attention the crowd…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Yuehai Chen , Jing Yang , Dong Zhang , Kun Zhang , Badong Chen , Shaoyi Du

This paper introduces a safe swarm of drones capable of performing landings in crowded environments robustly by relying on Reinforcement Learning techniques combined with Safe Learning. The developed system allows us to teach the swarm of…

We are interested in developing an automated system for detection of organized movements in human crowds. Computer vision algorithms can extract information from videos of crowded scenes and automatically detect and track groups of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Alexandre Matov

Object detection in high-resolution aerial images is a challenging task because of 1) the large variation in object size, and 2) non-uniform distribution of objects. A common solution is to divide the large aerial image into small (uniform)…

Computer Vision and Pattern Recognition · Computer Science 2020-04-14 Changlin Li , Taojiannan Yang , Sijie Zhu , Chen Chen , Shanyue Guan

Robots operating in human-populated environments must navigate safely and efficiently while minimizing social disruption. Achieving this requires estimating crowd movement to avoid congested areas in real-time. Traditional microscopic…

Robotics · Computer Science 2025-08-28 Maryam Kazemi Eskeri , Thomas Wiedemann , Ville Kyrki , Dominik Baumann , Tomasz Piotr Kucner

The paper focuses on improving the recent plug-and-play patch rescaling module (PRM) based approaches for crowd counting. In order to make full use of the PRM potential and obtain more reliable and accurate results for challenging images…

Computer Vision and Pattern Recognition · Computer Science 2021-12-20 Usman Sajid , Guanghui Wang

Crowd counting is a task of estimating the number of the crowd through images, which is extremely valuable in the fields of intelligent security, urban planning, public safety management, and so on. However, the existing counting methods…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Zhiyuan Zhao , Yubin Wen , Siyu Yang , Lichen Ning , Yuandong Liu , Junyu Gao

Detecting small objects, such as drones, over long distances presents a significant challenge with broad implications for security, surveillance, environmental monitoring, and autonomous systems. Traditional imaging-based methods rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Junran Guo , Tonglin Mu , Keyuan Li , Jianing Li , Ziyang Luo , Ye Chen , Xiaodong Fan , Jinquan Huang , Minjie Liu , Jinbei Zhang , Ruoyang Qi , Naiting Gu , Shihai Sun

In parallel with the advances of aerial networks, the use of drones is quickly included in daily activities. According to the characteristics of the operations to be carried out using the drones, the need for simultaneous use of one or more…

Cryptography and Security · Computer Science 2022-03-08 Yucel Aydin , Gunes Karabulur Kurt , Enver Ozdemir , Halim Yanikomeroglu

Traditional search and rescue methods in wilderness areas can be time-consuming and have limited coverage. Drones offer a faster and more flexible solution, but optimizing their search paths is crucial. This paper explores the use of deep…

Robotics · Computer Science 2025-02-06 Jan-Hendrik Ewers , David Anderson , Douglas Thomson

Swarms of drones offer an increased sensing aperture, and having them mimic behaviors of natural swarms enhances sampling by adapting the aperture to local conditions. We demonstrate that such an approach makes detecting and tracking…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Rakesh John Amala Arokia Nathan , Sigrid Strand , Daniel Mehrwald , Dmitriy Shutin , Oliver Bimber

In the field of crowd counting research, many recent deep learning based methods have demonstrated robust capabilities for accurately estimating crowd sizes. However, the enhancement in their performance often arises from an increase in the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Lei Chen , Xinghang Gao , Fei Chao , Xiang Chang , Chih Min Lin , Xingen Gao , Shaopeng Lin , Hongyi Zhang , Juqiang Lin

Crowd management technologies that leverage computer vision are widespread in contemporary times. There exists many security-related applications of these methods, including, but not limited to: following the flow of an array of people and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Soufien Hamrouni , Hakim Ghazzai , Hamid Menouar , Yahya Massoud

The rapid deployment of drones poses significant challenges for airspace management, security, and surveillance. Current detection and classification technologies, including cameras, LiDAR, and conventional radar systems, often struggle to…

Applied Physics · Physics 2026-01-14 O. Yerushalimov , D. Vovchuk , A. Glam , P. Ginzburg