A Discriminative Model of Motion and Cross Ratio for View-Invariant Action Recognition

CORC > 自动化研究所 > 中国科学院自动化研究所 > 智能感知与计算研究中心

	A Discriminative Model of Motion and Cross Ratio for View-Invariant Action Recognition
	Huang, Kaiqi; Zhang, Yeying; Tan, Tieniu
刊名	IEEE TRANSACTIONS ON IMAGE PROCESSING
	2012-04-01
卷号	21 期号:4 页码:2187-2197
关键词	Action recognition cross ratios motion detection view invariance
英文摘要	Action recognition is very important for many applications such as video surveillance, human-computer interaction, and so on; view-invariant action recognition is hot and difficult as well in this field. In this paper, a new discriminative model is proposed for video-based view-invariant action recognition. In the discriminative model, motion pattern and view invariants are perfectly fused together to make a better combination of invariance and distinctiveness. We address a series of issues, including interest point detection in image sequence, motion feature extraction and description, and view-invariant calculation. First, motion detection is used to extract motion information from videos, which is much more efficient than traditional background modeling and tracking-based methods. Second, as for feature representation, we exact variety of statistical information frommotion and view-invariant feature based on cross ratio. Last, in the action modeling, we apply a discriminative probabilistic model-hidden conditional random field to model motion patterns and view invariants, by which we could fuse the statistics of motion and projective invariability of cross ratio in one framework. Experimental results demonstrate that our method can improve the ability to distinguish different categories of actions with high robustness to view change in real circumstances.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
研究领域[WOS]	Computer Science ; Engineering
关键词[WOS]	TRAJECTORIES ; PATTERNS
收录类别	SCI
语种	英语
WOS记录号	WOS:000302181800061
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/3790]
专题	自动化研究所_智能感知与计算研究中心
作者单位	Chinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Huang, Kaiqi,Zhang, Yeying,Tan, Tieniu. A Discriminative Model of Motion and Cross Ratio for View-Invariant Action Recognition[J]. IEEE TRANSACTIONS ON IMAGE PROCESSING,2012,21(4):2187-2197.
APA	Huang, Kaiqi,Zhang, Yeying,&Tan, Tieniu.(2012).A Discriminative Model of Motion and Cross Ratio for View-Invariant Action Recognition.IEEE TRANSACTIONS ON IMAGE PROCESSING,21(4),2187-2197.
MLA	Huang, Kaiqi,et al."A Discriminative Model of Motion and Cross Ratio for View-Invariant Action Recognition".IEEE TRANSACTIONS ON IMAGE PROCESSING 21.4(2012):2187-2197.