CASIA OpenIR  > 09年以前成果
Complex activity representation and recognition by extended stochastic grammar
Zhang, Z; Huang, KQ; Tan, TN; Tan, Tieniu
Source PublicationCOMPUTER VISION - ACCV 2006, PT I
2006
Volume3851Issue:1Pages:150-159
SubtypeArticle
Abstract ; 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.
KeywordAction Recognition
WOS HeadingsScience & Technology ; Technology
Indexed BySCI ; ISTP
Language英语
WOS Research AreaComputer Science
WOS SubjectComputer Science, Artificial Intelligence ; Computer Science, Theory & Methods
WOS IDWOS:000235772300016
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/9362
Collection09年以前成果
Corresponding AuthorTan, Tieniu
AffiliationChinese Acad Sci, Inst Automat, Natl Lab Pattern Recogit, Beijing 100080, Peoples R China
Recommended Citation
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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