Title

On The Use Of Optical Flow To Test Crowd Simulations

Keywords

Crowds; Culture differences; Optical flow; People flux; Social force model

Abstract

A method for extracting estimates of crowd movement from videos of the crowd was reported at EMSS 2007. The goal of this method is to provide a means to validate the accuracy of crowd models such as the Helbing-Molnar- Farkas-Vicsek (HMFV) model and to provide a means to refine model parameters. The method uses optical flow extracted from the video with an empirical calibration constant to convert the optical flow to boundary crossing rates of crowd movement. A simple proportional relationship between optical flow and crossing rates of people was postulated on the basis of theoretical considerations. This paper reports on further crowd observations designed to confirm the simple form of the proportionality constant. While the research is on-going, preliminary results support the relationship.

Publication Date

12-1-2008

Publication Title

20th European Modeling and Simulation Symposium, EMSS 2008

Number of Pages

627-631

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

84871602171 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84871602171

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