Learning activity patterns using fuzzy self-organizing neural network

CASIA OpenIR > 09年以前成果

	Learning activity patterns using fuzzy self-organizing neural network
	Hu, WM; Xie, D ; Tan, TN; Maybank, S
	2004-06-01
专利类型	Article
摘要	Activity understanding in visual surveillance has attracted much attention in recent years. In this paper, we present a new method for learning patterns of object activities in image sequences for anomaly detection and activity prediction. The activity patterns are constructed using unsupervised learning of motion trajectories and object features. Based on the learned activity patterns, anomaly detection and activity prediction can be achieved. Unlike existing neural network based methods, our method uses a whole trajectory as an input to the network. This makes the network structure much simpler. Furthermore, the fuzzy set theory based method and the batch learning method are introduced into the network learning process, and make the learning process much more efficient. Two sets of data acquired, respectively, from a model scene and a campus scene are both used to test the proposed algorithms. Experimental results show that the fuzzy self-organizing neural network (fuzzy SOM) is much more efficient than the Kohonen self-organizing feature map (SOFM) and vector quantization in both speed and accuracy, and the anomaly detection and activity prediction algorithms have encouraging performances.
关键词	Activity Prediction Anomaly Detection Fuzzy Som Learning Activity Patterns
语种	英语
WOS研究方向	Automation & Control Systems ; Computer Science
WOS类目	Automation & Control Systems ; Computer Science, Artificial Intelligence ; Computer Science, Cybernetics
WOS记录号	WOS:000221578100029
引用统计	被引频次：93[WOS] [WOS记录] [WOS相关记录]
文献类型	专利
条目标识符	http://ir.ia.ac.cn/handle/173211/7960
专题	09年以前成果
作者单位	1.Chinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Beijing 100080, Peoples R China 2.Univ London Birkbeck Coll, Sch Comp Sci & Informat Syst, London WC1E 7HX, England
推荐引用方式 GB/T 7714	Hu, WM,Xie, D,Tan, TN,et al. Learning activity patterns using fuzzy self-organizing neural network[P]. 2004-06-01.