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Gestalt laws based tracklets analysis for human crowd understanding
Huang KQ(黄凯奇)1,2,3; zhao, weiqi1,2; zhang, zhang1,2
2017
发表期刊Pattern Recognition
卷号75期号:0页码:112-127
摘要Crowded scene analysis is a popular research topic due to its great application potentials, such as intel- ligent video surveillance and crowd density estimation. In this paper, we propose a novel approach to detecting crowd groups and learning semantic regions with a unified hierarchical clustering framework. According to the Gestalt laws of grouping, we propose three priors to define a unified similarity metric to measure the similarities of pairs of original tracklets and pairs of representative tracklets from dif- ferent crowd groups, so that the short-term crowd groups and the long-term semantic paths commonly composed of several short-term crowd groups can be detected by a bottom-up hierarchical clustering al- gorithm simultaneously. In order to verify our method at the longer time duration video sequences in the crowded scene, we construct a new crowd database (CASIA crowd database 1 ) with various crowd densi- ties in real scenes. Extensive experiments on our CASIA crowd database, Collective Motion Database and CUHK database are performed, and the results demonstrate that our approach is effective and reliable for crowd detection and semantic scene understanding in various crowd densities, especially for the crowd analysis in long temporal video clips.
关键词Gestalt Laws
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/20217
专题智能感知与计算研究中心
作者单位1.CRIPAC
2.University of Chinese Academy of Sciences
3.CAS Center for Excellence in Brain Science and Intelligence Technology
推荐引用方式
GB/T 7714
Huang KQ,zhao, weiqi,zhang, zhang. Gestalt laws based tracklets analysis for human crowd understanding[J]. Pattern Recognition,2017,75(0):112-127.
APA Huang KQ,zhao, weiqi,&zhang, zhang.(2017).Gestalt laws based tracklets analysis for human crowd understanding.Pattern Recognition,75(0),112-127.
MLA Huang KQ,et al."Gestalt laws based tracklets analysis for human crowd understanding".Pattern Recognition 75.0(2017):112-127.
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