Estimation of Temporal Gait Parameters Using a Wearable Microphone-Sensor-Based System

doi:10.3390/s16122167

	Estimation of Temporal Gait Parameters Using a Wearable Microphone-Sensor-Based System
	Wang, Cheng 1,2,3; Wang, Xiangdong 1,3; Long, Zhou 1,2,3; Yuan, Jing 1,2,3; Qian, Yueliang 1,3; Li, Jintao 3
	2016-12-01
发表期刊	SENSORS
ISSN	1424-8220
卷号	16 期号:12 页码:18
摘要	Most existing wearable gait analysis methods focus on the analysis of data obtained from inertial sensors. This paper proposes a novel, low-cost, wireless and wearable gait analysis system which uses microphone sensors to collect footstep sound signals during walking. This is the first time a microphone sensor is used as a wearable gait analysis device as far as we know. Based on this system, a gait analysis algorithm for estimating the temporal parameters of gait is presented. The algorithm fully uses the fusion of two feet footstep sound signals and includes three stages: footstep detection, heel-strike event and toe-on event detection, and calculation of gait temporal parameters. Experimental results show that with a total of 240 data sequences and 1732 steps collected using three different gait data collection strategies from 15 healthy subjects, the proposed system achieves an average 0.955 F1-measure for footstep detection, an average 94.52% accuracy rate for heel-strike detection and 94.25% accuracy rate for toe-on detection. Using these detection results, nine temporal related gait parameters are calculated and these parameters are consistent with their corresponding normal gait temporal parameters and labeled data calculation results. The results verify the effectiveness of our proposed system and algorithm for temporal gait parameter estimation.
关键词	gait analysis temporal parameter estimation footstep sound microphone sensor wearable device
DOI	10.3390/s16122167
收录类别	SCI
语种	英语
资助项目	National Key Technology R&D Program of China[2014BAK15B02]
WOS研究方向	Chemistry ; Electrochemistry ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
WOS记录号	WOS:000391303000185
出版者	MDPI AG
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/7719
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Wang, Cheng
作者单位	1.Chinese Acad Sci, Pervas Comp Res Ctr, Inst Comp Technol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beijing Key Lab Mobile Comp & Pervas Devices, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Cheng,Wang, Xiangdong,Long, Zhou,et al. Estimation of Temporal Gait Parameters Using a Wearable Microphone-Sensor-Based System[J]. SENSORS,2016,16(12):18.
APA	Wang, Cheng,Wang, Xiangdong,Long, Zhou,Yuan, Jing,Qian, Yueliang,&Li, Jintao.(2016).Estimation of Temporal Gait Parameters Using a Wearable Microphone-Sensor-Based System.SENSORS,16(12),18.
MLA	Wang, Cheng,et al."Estimation of Temporal Gait Parameters Using a Wearable Microphone-Sensor-Based System".SENSORS 16.12(2016):18.