Measuring Crowd Collectiveness
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AbstractCollective motions of crowds are common in nature and have attracted a great deal of attention in a variety of multidisciplinary fields. Collectiveness, which indicates the degree of individuals acting as a union, is a fundamental and universal measurement for various crowd systems. By quantifying the topological structures of collective manifolds of crowd, this paper proposes a descriptor of collectiveness and its efficient computation for the crowd and its constituent individuals. The Collective Merging algorithm is then proposed to detect collective motions from random motions. We validate the effectiveness and robustness of the proposed collectiveness on the system of self-driven particles as well as other real crowd systems such as pedestrian crowds and bacteria colony. We compare the collectiveness descriptor with human perception for collective motion and show their high consistency. As a universal descriptor, the proposed crowd collectiveness can be used to compare different crowd systems. It has a wide range of applications, such as detecting collective motions from crowd clutters, monitoring crowd dynamics, and generating maps of collectiveness for crowded scenes. A new Collective Motion Database, which consists of 413 video clips from 62 crowded scenes, is released to the public.
All Author(s) ListZhou BL, Tang XO, Zhang HP, Wang XG
Journal nameIEEE Transactions on Pattern Analysis and Machine Intelligence
Year2014
Month8
Day1
Volume Number36
Issue Number8
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1586 - 1599
ISSN0162-8828
eISSN1939-3539
LanguagesEnglish-United Kingdom
Keywordscollective motion; Crowd behavior analysis; graph connectivity; video analysis
Web of Science Subject CategoriesComputer Science; Computer Science, Artificial Intelligence; COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE; Engineering; Engineering, Electrical & Electronic; ENGINEERING, ELECTRICAL & ELECTRONIC

Last updated on 2022-16-01 at 00:02