Results 41 to 50 of about 27,881 (274)

A Practice-Distributed Thunder-Localization System with Crowd-Sourced Smart IoT Devices

open access: yesSensors, 2023
Lightning localization is of great significance to weather forecasting, forest fire prevention, aviation, military, and other aspects. Traditional lightning localization requires the deployment of base stations and expensive measurement equipment.
Bingxian Lu   +3 more
doaj   +1 more source

Geometric and Physical Constraints for Drone-Based Head Plane Crowd Density Estimation

open access: yes, 2019
State-of-the-art methods for counting people in crowded scenes rely on deep networks to estimate crowd density in the image plane. While useful for this purpose, this image-plane density has no immediate physical meaning because it is subject to ...
Fua, Pascal   +3 more
core   +1 more source

Detecting Flow Anomalies in Distributed Systems [PDF]

open access: yes, 2014
Deep within the networks of distributed systems, one often finds anomalies that affect their efficiency and performance. These anomalies are difficult to detect because the distributed systems may not have sufficient sensors to monitor the flow of ...
Chua, Freddy Chong Tat   +2 more
core   +3 more sources

A Crowd Counting and Localization Network Based on Adaptive Feature Fusion and Multi-Scale Global Attention Up Sampling

open access: yesIEEE Access
Crowd counting is an important research topic in the fields of computer vision and image processing, with monitoring and management of crowded scenes becoming an increasingly prominent issue.
Min Wang   +4 more
doaj   +1 more source

RMapCS: Radio Map Construction From Crowdsourced Samples for Indoor Localization

open access: yesIEEE Access, 2018
Fingerprint crowdsourcing has recently been promoted as a promising solution for fingerprinting-based indoor localization systems to relieve the burden of site survey. When constructing an indoor localization map from crowd-sourced samples, the following
Yanzhen Ye, Bang Wang
doaj   +1 more source

DecideNet: Counting Varying Density Crowds Through Attention Guided Detection and Density Estimation

open access: yes, 2018
In real-world crowd counting applications, the crowd densities vary greatly in spatial and temporal domains. A detection based counting method will estimate crowds accurately in low density scenes, while its reliability in congested areas is downgraded ...
Gao, Chenqiang   +3 more
core   +1 more source

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.
Abousamra, Shahira   +3 more
openaire   +2 more sources

Crowd Counting and Individual Localization Using Pseudo Square Label

open access: yesIEEE Access
Recent work in crowd counting focuses on counting over detected individuals rather than estimating the number of people in the image. However, existing crowd localization methods directly detect the head point or region of individuals, which may entail ...
Jihye Ryu, Kwangho Song
doaj   +1 more source

Clustered Crowd GPS for Privacy Valuing Active Localization

open access: yesIEEE Access, 2018
With the proliferation of mobile devices having BLE capability and the introduction of Beacon technology, crowdsourcing-based approaches have recently emerged as a promising solution for localization of lost objects or individuals (e.g., children or ...
Fatih Yucel, Eyuphan Bulut
doaj   +1 more source

Ego-Downward and Ambient Video based Person Location Association

open access: yes, 2018
Using an ego-centric camera to do localization and tracking is highly needed for urban navigation and indoor assistive system when GPS is not available or not accurate enough.
Huo, Zhouyuan   +3 more
core   +1 more source

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