Activity recognition using multiplex limited penetrable visibility graph. (December 2021)

• Record Type: Journal Article
• Authors: Song, Liwen; Xiang, Changcheng; Guo, Huafeng; Chen, Shiqiang
• Is Part Of: Journal of the mechanical behavior of biomedical materials. Volume 124(2021)
• Publication Date: 2021-12
• Subjects: Activity recognition -- Plantar pressure -- Network -- Limited penetrable visibility graph; Biomedical materials -- Periodicals; Biomedical materials -- Mechanical properties -- Periodicals; Biomedical materials; Biomedical materials -- Mechanical properties; Periodicals; Electronic journals; 610.28
• DOI: 10.1016/j.jmbbm.2021.104880
• Languages: English
• ISSNs: 1751-6161

Abstract

Abstract: To solve the dynamic problem of different activities in human activity recognition research, an activity recognition method based on a multiplex limited penetrable visibility graph is proposed. The 21 pressure values for each sampling are mapped to nodes in the first-layer network; then the average path length of nodes in the asynchronous periodic network is obtained, and the second-layer network used to explore different activities is built. Finally, the characteristic parameters and dynamic characteristics of different activities are explored and analyzed. The experimental results demonstrate that through the joint distribution of the average clustering coefficient and the maximum degree parameter of the node, the discrimination problems of different postures can be better realized, and it has good adaptability. It provides a new approach to gait recognition research that can be used in medical clinical diagnosis, rehabilitation training, and public health.