计算机科学
可穿戴计算机
惯性测量装置
人工智能
惯性参考系
可穿戴技术
加速度计
运动捕捉
计算机视觉
实时计算
陀螺仪
无线传感器网络
运动(物理)
卡尔曼滤波器
人体运动
作者
Jie Li,Xiaofeng Liu,Zhelong Wang,Hongyu Zhao,Tingting Zhang,Sen Qiu,Xu Zhou,Huili Cai,Rong Rong Ni,Angelo Cangelosi
出处
期刊:IEEE Internet of Things Journal
[Institute of Electrical and Electronics Engineers]
日期:2021-10-12
卷期号:: 1-1
被引量:1
标识
DOI:10.1109/jiot.2021.3119328
摘要
Wearable inertial motion capture, a new type of motion capture technology, mainly estimates the human posture in 3-D space through multi-sensor data fusion. The available method for sensor fusion are usually aided by magnetometers to remove the drift error in yaw angle estimation, which in turn limits their application in the presence of complex magnetic field environment. In this paper, an extended Kalman filter data fusion method is proposed to fuse the 9-axis sensor data. Meanwhile, heuristic drift reduction (HDR) method is used to calibrate the accumulated error of heading angle. In addition, the position in 3-D space is estimated by foot-mounted Zero-Velocity-Update (ZUPT) technique. Combining 3-D attitude and position, a biomechanical model of the human body is established to track the motion of real human body. The extended Kalman filter (EKF) algorithm and position estimation methods are benchmarked against the golden standard, optical motion capture system, for various indoor experiments. In addition, various outdoor experiments are also conducted to verify the reliability of the proposed method. The results show that the proposed algorithm outperforms the available attitude estimation model in motion tracking and is feasible for 3-D human motion capture.
科研通智能强力驱动
Strongly Powered by AbleSci AI