Results 11 to 20 of about 645,498 (280)

Localization in the Crowd with Topological Constraints

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2021
We address the problem of crowd localization, i.e., the prediction of dots corresponding to people in a crowded scene. Due to various challenges, a localization method is prone to spatial semantic errors, i.e., predicting multiple dots within a same person or collapsing multiple dots in a cluttered region.
Shahira Abousamra   +3 more
openaire   +4 more sources

Crowd-Driven Mapping, Localization and Planning [PDF]

open access: yes, 2021
Accepted to ISER ...
Tingxiang Fan   +3 more
openaire   +5 more sources

SRNet: Scale-Aware Representation Learning Network for Dense Crowd Counting

open access: yesIEEE Access, 2021
Huge variations in the scales of people in images create an extremely challenging problem in the task of crowd counting. Currently, many researchers apply multi-column structures to solve the scale variation problem.
Liangjun Huang   +4 more
doaj   +1 more source

Map-Assisted 3D Indoor Localization Using Crowd-Sensing-Based Trajectory Data and Error Ellipse-Enhanced Fusion

open access: yesRemote Sensing, 2022
Crowd-sensing-based localization is regarded as an effective method for providing indoor location-based services in large-scale urban areas. The performance of the crowd-sensing approach is subject to the poor accuracy of collected daily-life ...
Qiao Wan   +3 more
doaj   +1 more source

Congested Crowd Counting via Adaptive Multi-Scale Context Learning

open access: yesSensors, 2021
In this paper, we propose a novel congested crowd counting network for crowd density estimation, i.e., the Adaptive Multi-scale Context Aggregation Network (MSCANet).
Yani Zhang   +5 more
doaj   +1 more source

Research on crowd-sourced localization algorithm for narrow and closed battlefield environment [PDF]

open access: yesZhihui kongzhi yu fangzhen, 2023
In order to solve the problem of how to quickly and accurately obtain the location information of self-organizing networks or target objects in the narrow and closed battlefield environment, such as the enemy command center, cabins, and underground ...
LI Yaoyu, CHEN Jie, WEI Yong
doaj   +1 more source

Unsupervised camera localization in crowded spaces [PDF]

open access: yes2017 IEEE International Conference on Robotics and Automation (ICRA), 2017
Existing camera networks in public spaces such as train terminals or malls can help social robots to navigate crowded scenes. However, the localization of the cameras is required, i.e., the positions and poses of all cameras in a unique reference. In this work, we estimate the relative location of any pair of cameras by solely using noisy trajectories ...
Alahi, Alexandre   +3 more
openaire   +2 more sources

Anomaly Detection and Localization in Crowded Scenes [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2014
The detection and localization of anomalous behaviors in crowded scenes is considered, and a joint detector of temporal and spatial anomalies is proposed. The proposed detector is based on a video representation that accounts for both appearance and dynamics, using a set of mixture of dynamic textures models.
Weixin Li 0002   +2 more
openaire   +4 more sources

Crowd Anomaly Detection via Spatial Constraints and Meaningful Perturbation

open access: yesISPRS International Journal of Geo-Information, 2022
Crowd anomaly detection is a practical and challenging problem to computer vision and VideoGIS due to abnormal events’ rare and diverse nature. Consequently, traditional methods rely on low-level reconstruction in a single image space, easily affected by
Jiangfan Feng, Dini Wang, Li Zhang
doaj   +1 more source

Cloud Update of Geodetic Normal Distribution Map Based on Crowd-Sourcing Detection against Road Environment Changes

open access: yesJournal of Advanced Transportation, 2022
LiDAR-based localization has been widely used for the pose estimation of autonomous vehicles. Since the localization requires a sustainable map reflecting environment changes, a map update framework based on crowd-sourcing measurements has been ...
Chansoo Kim   +5 more
doaj   +1 more source

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