Journal article
Learning clip representations for Skeleton-based 3D action recognition
IEEE Transactions on Image Processing, Vol.27(6), pp.2842-2855
2018
Abstract
This paper presents a new representation of skeleton sequences for 3D action recognition. Existing methods based on hand-crafted features or recurrent neural networks cannot adequately capture the complex spatial structures and the long-term temporal dynamics of the skeleton sequences, which are very important to recognize the actions. In this paper, we propose to transform each channel of the 3D coordinates of a skeleton sequence into a clip. Each frame of the generated clip represents the temporal information of the entire skeleton sequence, and one particular spatial relationship between the skeleton joints. The entire clip incorporates multiple frames with different spatial relationships, which provide useful spatial structural information of the human skeleton. We also propose a Multi-task Convolutional Neural Network (MTCNN) to learn the generated clips for action recognition. The proposed MTCNN processes all the frames of the generated clips in parallel to explore the spatial and temporal information of the skeleton sequences. The proposed method has been extensively tested on six challenging benchmark datasets. Experimental results consistently demonstrate the superiority of the proposed clip representation and feature learning method for 3D action recognition compared to existing techniques.
Details
- Title
- Learning clip representations for Skeleton-based 3D action recognition
- Authors/Creators
- Q. Ke (Author/Creator)M. Bennamoun (Author/Creator)S. An (Author/Creator)F. Sohel (Author/Creator)F. Boussaid (Author/Creator)
- Publication Details
- IEEE Transactions on Image Processing, Vol.27(6), pp.2842-2855
- Publisher
- IEEE
- Identifiers
- 991005543662607891
- Copyright
- © 2018 IEEE
- Murdoch Affiliation
- School of Engineering and Information Technology
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Citation topics
- 4 Electrical Engineering, Electronics & Computer Science
- 4.116 Robotics
- 4.116.1097 Gesture Recognition
- Web Of Science research areas
- Computer Science, Artificial Intelligence
- Engineering, Electrical & Electronic
- ESI research areas
- Engineering