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Complex activity representation and recognition by extended stochastic grammar
Zhang, Z; Huang, KQ; Tan, TN; Tan, Tieniu
2006
发表期刊COMPUTER VISION - ACCV 2006, PT I
卷号3851期号:1页码:150-159
文章类型Article
摘要 ; Stochastic grammar has been used in many video analysis and event recognition applications as an efficient model to represent large-scale video activity. However, in previous works, due to the limitation on representing parallel temporal relations, traditional stochastic grammar cannot be used to model complex multi-agent activity including parallel temporal relations between sub-activities (such as "during" relation). In this paper, we extend the traditional grammar by introducing Temporal Relation Events (TRE) to solve the problem. The corresponding grammar parser appending complex temporal inference is also proposed. A system that can recognize two hands' cooperative action in a "telephone calling" activity is built to demonstrate the effectiveness of our methods. In the experiment, a simple method to model the explicit state duration probability distribution in HMM detector is also proposed for accurate primitive events detection.
关键词Action Recognition
WOS标题词Science & Technology ; Technology
收录类别SCI ; ISTP
语种英语
WOS研究方向Computer Science
WOS类目Computer Science, Artificial Intelligence ; Computer Science, Theory & Methods
WOS记录号WOS:000235772300016
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9362
专题09年以前成果
通讯作者Tan, Tieniu
作者单位Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recogit, Beijing 100080, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Z,Huang, KQ,Tan, TN,et al. Complex activity representation and recognition by extended stochastic grammar[J]. COMPUTER VISION - ACCV 2006, PT I,2006,3851(1):150-159.
APA Zhang, Z,Huang, KQ,Tan, TN,&Tan, Tieniu.(2006).Complex activity representation and recognition by extended stochastic grammar.COMPUTER VISION - ACCV 2006, PT I,3851(1),150-159.
MLA Zhang, Z,et al."Complex activity representation and recognition by extended stochastic grammar".COMPUTER VISION - ACCV 2006, PT I 3851.1(2006):150-159.
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