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People tracking based on motion model and motion constraints with automatic initialization
Ning, HZ; Tan, TN; Wang, L; Hu, WM
2004-07-01
发表期刊PATTERN RECOGNITION
卷号37期号:7页码:1423-1440
文章类型Article
摘要Human motion analysis is currently one of the most active research topics in computer vision. This paper presents a model-based approach to recovering motion parameters of walking people from monocular image sequences in a CONDENSATION framework. From the semi-automatically acquired training data, we learn a motion model represented as Gaussian distributions, and explore motion constraints by considering the dependency of motion parameters and represent them as conditional distributions. Then both of them are integrated into a dynamic model to concentrate factored sampling in the areas of the state-space with most posterior information. To measure the observation density with accuracy and robustness, a pose evaluation function (PEF) combining both boundary and region information is proposed. The function is modeled with a radial term to improve the efficiency of the factored sampling. We also address the issue of automatic acquisition of initial model pose and recovery from severe failures. A large number of experiments carried out in both indoor and outdoor scenes demonstrate that the proposed approach works well (C) 2004 Pattern Recognition Society. Published by Elsevier Ltd. All rights reserved.
关键词Model-based Human Tracking Motion Model Motion Constraints Initialization Condensation Gaussian Distribution
WOS标题词Science & Technology ; Technology
关键词[WOS]IMAGE SEQUENCES ; RECOGNITION
收录类别SCI
语种英语
WOS研究方向Computer Science ; Engineering
WOS类目Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS记录号WOS:000221836100009
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/7957
专题智能感知与计算研究中心
作者单位Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100080, Peoples R China
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Ning, HZ,Tan, TN,Wang, L,et al. People tracking based on motion model and motion constraints with automatic initialization[J]. PATTERN RECOGNITION,2004,37(7):1423-1440.
APA Ning, HZ,Tan, TN,Wang, L,&Hu, WM.(2004).People tracking based on motion model and motion constraints with automatic initialization.PATTERN RECOGNITION,37(7),1423-1440.
MLA Ning, HZ,et al."People tracking based on motion model and motion constraints with automatic initialization".PATTERN RECOGNITION 37.7(2004):1423-1440.
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