Paper Info
Title
A method to calibrate installation orientation errors of inertial sensors for gait analysis
Abstract
Gait analysis by using wearable inertial sensors has gained tremendous achievements in recent years. A limitation of using inertial measurement unit (IMU) is that inertial signals heavily rely on the correctness of sensor installation. A slight installation orientation error could lead to inaccurate results for quantitative estimation of gait parameters. In this paper, a calibration method was proposed to deal with installation orientation errors of IMU, where the errors were considered as an IMU frame rotating around the standard coordinate system. The proposed method could generate a three-dimensional rotation matrix to calibrate gait signals. By using the calibrated signals, estimation of gait parameters such as calculation of stride length and detection of gait phase can be more accurate. An experiment was performed on our gait monitoring platform based on IMU, and the experimental results demonstrate the effectiveness of the proposed method.
Year
DOI
Venue
2014
10.1109/ICInfA.2014.6932724
Information and Automation
Keywords
Field
DocType
calibration,gait analysis,inertial systems,installation,imu frame,calibration method,gait phase detection,inertial measurement unit,inertial sensors,installation orientation errors,standard coordinate system,stride length,three-dimensional rotation matrix,gait,orientation error,accelerometers,vectors,wireless communication,sensors,acceleration
Coordinate system,Inertial frame of reference,Computer vision,Gait,Accelerometer,Computer science,Simulation,Gait analysis,Inertial measurement unit,Artificial intelligence,Inertial reference unit,Calibration
Conference
Citations 
PageRank 
References 
0
0.34
5
Authors
5
Name
Order
Citations
PageRank
ye chen100.34
Weijian Hu211.80
Yang Yu348455.96
jijian hou400.34
Zhelong Wang515421.03