Results 21 to 30 of about 465,004 (290)

Parameter Estimation of Social Forces in Crowd Dynamics Models via a Probabilistic Method [PDF]

open access: yes, 2014
Focusing on a specific crowd dynamics situation, including real life experiments and measurements, our paper targets a twofold aim: (1) we present a Bayesian probabilistic method to estimate the value and the uncertainty (in the form of a probability ...
Corbetta, Alessandro   +3 more
core   +2 more sources

Scene Invariant Crowd Counting and Crowd Occupancy Analysis [PDF]

open access: yes, 2012
In public places, crowd size may be an indicator of congestion, delay, instability, or of abnormal events, such as a fight, riot or emergency. Crowd related information can also provide important business intelligence such as the distribution of people throughout spaces, throughput rates, and local densities.
Ryan, David   +3 more
openaire   +2 more sources

Automatic crowd analysis from airborne images [PDF]

open access: yesProceedings of 5th International Conference on Recent Advances in Space Technologies - RAST2011, 2011
Recently automatic detection of people and crowded areas from images became a very important research field, since it can provide crucial information especially for police departments and crisis management teams. Detection of crowd and measuring the density of people can prevent possible accidents or unpleasant conditions to appear.
Sirmacek, Beril, Reinartz, Peter
openaire   +2 more sources

CrowdFix: An Eyetracking Dataset of Real Life Crowd Videos

open access: yesIEEE Access, 2019
Understanding human visual attention and saliency is an integral part of vision research. In this context, there is an ever-present need for fresh and diverse benchmark datasets, particularly for insight into special use cases like crowded scenes.
Memoona Tahira   +3 more
doaj   +1 more source

Texture-based crowd detection and localisation [PDF]

open access: yes, 2012
This paper presents a crowd detection system based on texture analysis. The state-of-the-art techniques based on co-occurrence matrix have been revisited and a novel set of features proposed.
A.C. Davies   +4 more
core   +1 more source

Physics Inspired Methods for Crowd Video Surveillance and Analysis: A Survey

open access: yesIEEE Access, 2018
Crowd analysis is very important for human behavior analysis, safety science, computational simulation, and computer vision applications. One of the most popular applications is video surveillance that plays an important role in crowd behavior analysis ...
Xuguang Zhang, Qinan Yu, Hui Yu
doaj   +1 more source

Automatic analysis of crowded fields [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1985
There are many important 2D data reduction problems in Astronomy that are not amenable to conventional automatic analysis. Typically these problem areas arise in fields where the number density of images is high and where the local sky background may vary rapidly.
openaire   +1 more source

Macroscopic modeling and simulations of room evacuation [PDF]

open access: yes, 2013
We analyze numerically two macroscopic models of crowd dynamics: the classical Hughes model and the second order model being an extension to pedestrian motion of the Payne-Whitham vehicular traffic model.
Duvigneau, Regis   +2 more
core   +4 more sources

Abnormal Prediction of Dense Crowd Videos by a Purpose–Driven Lattice Boltzmann Model

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2017
In the field of intelligent crowd video analysis, the prediction of abnormal events in dense crowds is a well-known and challenging problem. By analysing crowd particle collisions and characteristics of individuals in a crowd to follow the general trend ...
Xue Yiran   +3 more
doaj   +1 more source

Detection and Analysis of Anomalies in People Density and Mobility Through Wireless Smartphone Tracking

open access: yesIEEE Access, 2020
One of the challenges of this century is to use the data that a smart-city provides to make life easier for its inhabitants. Specifically, within the area of urban mobility, the possibility of detecting anomalies in the movement of pedestrians and ...
A. Fernandez-Ares   +4 more
doaj   +1 more source

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