Global trajectory construction across multi-cameras via graph matching

	Global trajectory construction across multi-cameras via graph matching
	Zhu, Xiaobin; Liu, Jing; Wang, Jinqiao; Fu, Wei; Lu, Hanqing; Fang, Yikai
	2011
会议名称	6th International Conference on Image and Graphics, ICIG 2011
会议录名称	International Conference on Image and Graphics (ICIG)
页码	801-806
会议日期	2011
会议地点	Hefei, Anhui, China
摘要	Behavior analysis across multi-cameras becomes more and more popular with the rapid development of camera network in video surveillance. In this paper, we propose a novel unsupervised graph matching framework to associate trajectories across partially overlapping cameras. Firstly, trajectory extraction is based on object extraction and tracking and is followed by a homographic projection to a mosaic-plane. And we extract appearance and spatio-temporal features for trajectory description. Then a robust graph matching algorithm based on reweighted random walk is adopted for trajectory association. The association is formulated as node ranking and selection on an association graph whose nodes represent candidate correspondences of trajectories. Finally, the pairs of corresponding trajectories in overlapping regions are fused by an adaptive averaging scheme, in which trajectories with more observations and longer length is given higher weight. Experiments and comparison on real scenarios demonstrate the effectiveness of the proposed approach.
关键词	Trajectory Construction Multi-cameras Via Graph Matching
收录类别	EI
文献类型	会议论文
条目标识符	http://ir.ia.ac.cn/handle/173211/4585
专题	紫东太初大模型研究中心_图像与视频分析
通讯作者	Wang, Jinqiao
推荐引用方式 GB/T 7714	Zhu, Xiaobin,Liu, Jing,Wang, Jinqiao,et al. Global trajectory construction across multi-cameras via graph matching[C],2011:801-806.

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