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Cited by 1,428

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Action recognition based on a bag of 3D points

Li, Wanqing, Zhang, Zhengyou, Liu, Zicheng·2010·2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Workshops

Abstract

This paper presents a method to recognize human actions from sequences of depth maps. Specifically, we employ an action graph to model explicitly the dynamics of the actions and a bag of 3D points to characterize a set of salient postures that correspond to the nodes in the action graph. In addition, we propose a simple, but effective projection based sampling scheme to sample the bag of 3D points from the depth maps. Experimental results have shown that over 90% recognition accuracy were achieved by sampling only about 1% 3D points from the depth maps. Compared to the 2D silhouette based recognition, the recognition errors were halved. In addition, we demonstrate the potential of the bag of points posture model to deal with occlusions through simulation.

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Metadata

Authors
Li, W., Zhang, Z., & Liu, Z.
Venue
2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Workshops
Publisher
IEEE
Published
2010-06
Pages
9-14
ISSN
2160-7508 (ISSN-L)
OpenAlex
W2144380653
Cited by
1,428
References
0
FWCI
34.91
Type
conference paper
Language
en
Open access
closed

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CoChat. (2026). Citation check: Action recognition based on a bag of 3D points. https://app.cochat.ai/papers/10.1109/cvprw.2010.5543273
The paper
Li, W., Zhang, Z., & Liu, Z. (2010). Action recognition based on a bag of 3D points. 2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Workshops. https://doi.org/10.1109/cvprw.2010.5543273

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.