1. School of Electrical Engineering, University of Jinan, Jinan 250022; 2. School of Control Science and Engineering, Shandong University, Jinan 250061
Abstract:To solve the acquisition difficulty of toddler's walking gait, a Kinect-based natural gait extraction approach is proposed. The human body's skeletal information is acquired directly by Kinect to collect the joints data of toddlers of different months. The joint position smoothing and bone length curve fitting are utilized to realize filtering and acquisition of bone data. The temporal-spatial gait parameters of toddlers of different months are extracted by fitting the foot trajectory of the walking toddler. By means of the inverse kinematics of the lower limb, the changes of joint angles are obtained and the gait variation characteristics of the walking toddler are deduced.
[1] Li Kai, Yuan Wen-Xue, Meng Zhao-Li. Research advancement of children's gait. China Sport Science, 2009, 29(10):72-75(李凯, 元文学, 孟昭莉. 儿童步态的研究进展. 体育科学, 2009, 29(10):72-75) [2] Xia Ze-Yang, Chen Ken, Liu Li, Xiong Jing. Experimental analysis on human locomotion for natural gait planning of humanoid robots. Robots, 2008, 30(1):41-46(夏泽洋, 陈垦, 刘莉, 熊璟. 面向仿人机器人自然步态规划的人体步行实验分析. 机器人, 2008, 30(1):41-46) [3] Sun Guang-Bin, Wang Hong, Lu Zhi-Guo, Wang Fu-Wang, Shi Tian-Wei, Wang Lin. Humanoid walking planning based on EMG from human foot-bottom. Acta Automatica Sinica, 2015, 41(5):874-884(孙广彬, 王宏, 陆志国, 王福旺, 史添玮, 王琳. 仿人足底肌电特征的机器人行走规划. 自动化学报, 2015, 41(5):874-884) [4] Tian Yan-Tao, Sun Zhong-Bo, Li Hong-Yang, Wang Jing. A review of optimal and control strategies for dynamic walking bipedal robots. Acta Automatica Sinica, 2016, 42(8):1142-1157(田彦涛, 孙中波, 李宏扬, 王静. 动态双足机器人的控制与优化研究进展. 自动化学报, 2016, 42(8):1142-1157) [5] Zhao Xiao-Jun, Huang Qiang, Peng Zhao-Qin, Zhang Li-Ge, Li Ke-Jie. Kinematics mapping of humanoid motion based on human motion. Robot, 2005, 27(4):357-361(赵晓军, 黄强, 彭朝琴, 张利格, 李科杰. 基于人体运动的仿人型机器人动作的运动学匹配. 机器人, 2005, 27(4):357-361) [6] Kanako M, Mitsuharu M, Shin'ichiro N, Fumio K, Kensuke H, Kenji K, Shuuji K. Robot motion remix based on motion capture data-towards human-like locomotion of humanoid robots. In:Proceedings of the 9th IEEE-RAS International Conference on Humanoids. Paris, France:IEEE, 2009. 596-603 [7] Armstrong N, Welsman J R, Chia M Y H. Short term power output in relation to growth and maturation. British Journal of Sports Medicine, 2001, 35(2):118-124 [8] Van Praagh E, Doré E. Short-term muscle power during growth and maturation. Sports Medicine, 2002, 32(11):701-728 [9] Cioni G, Duchini F, Milianti B, Paolicelli P B, Sicola E, Boldrini A, et al. Differences and variations in the patterns of early independent walking. Early Hum Development, 1993, 35(3):193-205 [10] Whittle M W. Clinical gait analysis:a review. Human Movement Science, 1996, 15(3):369-387 [11] Yaguramaki N, Kimura T. Acquirement of stability and mobility in infant gait. Gait & Posture, 2002, 16(1):69-77 [12] Sutherland D H, Olshen R, Cooper L, Woo S L. The development of mature gait. The Journal of Bone & Joint Surgery, 1980, 62(3):336-353 [13] Wang Xin, Guan Xin. The gait kinematics analysis for healthy infant aged from one to six. Journal of Beijing Sport University, 2012, 35(7):66-69(王新, 关欣. 1-6岁健康儿童行走步态特征分析. 北京体育大学学报, 2012, 35(7):66-69) [14] Zhang Xiao-Dong, Xiao Dan-Dan. A kinematic analysis of over weight children and normal weight children's walk movement characteristics. Journal of Beijing Sport University, 2008, 31(12):1651-1654(张晓栋, 肖丹丹. 肥胖儿童与正常儿童行走步态特征的运动学分析. 北京体育大学学报, 2008, 31(12):1651-1654) [15] Yan Song-Hua, Xie Nan, Liu Zhi-Cheng. Biomechanical study on gait of obese children. Chinese Journal of Sports Medicine, 2007, 26(3):286-290(闫松华, 谢楠, 刘志成. 肥胖儿童平地自然行走时的步态研究. 中国运动医学杂志, 2007, 26(3):286-290) [16] Winter D A, Greenlaw R K, Hobson D A. Television-computer analysis of kinematics of human gait. Computers and Biomedical Research, 1972, 5(5):498-504 [17] Hallemans A, Clercq D D, Aerts P. Changes in 3D joint dynamics during the first 5 months after the onset of independent walking:a longitudinal follow-up study. Gait & Posture, 2006, 24(3):270-279 [18] Sun B Q, Liu X G, Wu X T, Wang H Y. Human gait modeling and gait analysis based on Kinect. In:Proceedings of the 2014 IEEE International Conference on Robotics & Automation (ICRA). Hong Kong, China:IEEE, 2014. 3173-3178 [19] Amandine D, Francois C. A gait analysis method based on a depth camera for fall prevention. In:Proceedings of the 36th Annual International Conference on Engineering in Medicine and Biology Society (EMBC). Chicago, USA:IEEE, 2014. 4515-4518 [20] Suttipong K, Pornchai M, Bunthit W, Sasipa S. Automatic multiple Kinect cameras setting for simple walking posture analysis. In:Proceedings of the 2013 International Conference on Computer Science and Engineering (ICSEC). Bangkok, Thailand:IEEE, 2013. 245-249 [21] Yu Tao. Kinect Application Development Combat:the Most Natural Way to Dialogue with the Machine. Beijing:Machinery Industry Press, 2012. 26-30(余涛. Kinect应用开发实战:用最自然的方式与机器对话. 北京:机械工业出版社, 2012. 26-30) [22] The Microsoft Kinect. JointType enumeration[Online], available:https://msdn.microsoft.com/en-us/library/microsoft.kinect.jointtype.aspx, May 4, 2017. [23] Pete D. Avateering with kinect v2-joint orientations[Online], available:http://peted.azure-websites.net/avateering-with-kinect-v2-joint-orientations/, May 6, 2017. [24] McGhee R B. Some finite state aspects of legged locomotion. Mathematical Biosciences, 1968, 2(1-2):67-84 [25] Meng Jian. Research and Implementation on Motion Control Method of Quadruped Robot on Complex Terrain and Environment[Ph.D. dissertation], Shandong University, China, 2015.(孟健. 复杂地形环境四足机器人运动控制方法研究与实现[博士学位论文], 山东大学, 中国, 2015.) [26] Craig J J. Introduction to Robotics:Mechanical and Control (Third Edition). New Jersey:Pearsone Education, 2005. 51-55 [27] Wang C, Zhang J P, Wang L, Pu J, Yuan X R. Human identification using temporal information preserving gait template. IEEE Transactions on Pattern Analysis and Machine Intelligence, 2012, 34(11):2164-2176