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	A New Approach for Hand-Waving Detection in Crowds
	Nannan Li; Xinyu Wu; Dan Xu; Ruiqing Fu; Wei Feng
	2013
会议名称	2013 IEEE International Conference on Robotics and Biomimetics, ROBIO 2013
会议地点	Shenzhen, China
英文摘要	In this paper, we propose a new approach to detect hand-waving motion in crowds. Different from previous approaches which are often based on segmentation and motion detection, our method can be seen as a complexity reduction process from the problem of 3D motion detection to 2D object detection. Through arranging the same row of per video frame along the time sequence, we obtain 2D images composed of traces of moving object, and in these images hand-waving motion are represented as 2D patterns which have strong periodicity. Considering the similarity between these patterns, we first use Chamfer Distance Matching to locate the patterns' position roughly. Then we convert 2D patterns to 1D signals and apply Fourier Transformation to these signals. Finally, we identify a region as a hand-waving one, if its intensity spectrum of Fourier Transformation of 1D signals has a peak response between specified locations, and the value of the peak is greater than a threshold. Experiments on two self-built hand-waving datasets demonstrate that the proposed method can detect hand-waving motion effectively.
收录类别	EI
语种	英语
内容类型	会议论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/4620]
专题	深圳先进技术研究院_集成所
作者单位	2013
推荐引用方式 GB/T 7714	Nannan Li,Xinyu Wu,Dan Xu,et al. A New Approach for Hand-Waving Detection in Crowds[C]. 见:2013 IEEE International Conference on Robotics and Biomimetics, ROBIO 2013. Shenzhen, China.

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