Identification of spatio-temporal and kinematics parameters for 2-D optical gait analysis system using passive markers

C. Prakash, A. Mittal, R. Kumar, Namita Mittal
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引用次数: 20

Abstract

Quantification of human gait assist healthcare professionals to distinguish between normal and abnormal gait. Most gait capture systems use direct measurement techniques to acquire Spatio-temporal parameters and kinematics for motion information, but in that subject has to carry cables and other costly component. To overcome these limitations, this paper studies the feasibility of Spatio Temporal and Kinematics parameters by using passive marker based 2-D optical gait analysis system. The co-ordinates of markers were obtained by using a home setting arrangement consisting of a camera, 5 reflective passive markers and a personal computer. Algorithms were developed to analyze, Spatio-temporal and Kinematic gait parameters such as step length, cadence, stride rate, gait cycle, joint angles and gait speed can be assessed. The main profit of the presented system are that it reduces the extra time and complexity required for marker placement, the high cost for the markers, and also the effect of the markers on the subject's movement. The prototype of the system provides decent quantitative Spatio Temporal and Kinematics gait parameters that can assisted for better understanding of Indian patients gait pathology, treatment and rehabilitation by Healthcare Professionals.
基于被动标记的二维光学步态分析系统的时空和运动学参数识别
人类步态的量化帮助医疗保健专业人员区分正常和异常的步态。大多数步态捕获系统使用直接测量技术来获取运动信息的时空参数和运动学,但在该主题中必须携带电缆和其他昂贵的组件。为了克服这些局限性,本文研究了基于被动标记的二维光学步态分析系统的时空和运动学参数的可行性。标记的坐标是通过使用由照相机、5个反射被动标记和个人电脑组成的家庭设置安排获得的。研究了步态的时空和运动学参数,如步长、步速、步幅、步态周期、关节角度和步态速度。该系统的主要优点是减少了标记放置所需的额外时间和复杂性,降低了标记的高成本,以及标记对受试者运动的影响。该系统的原型提供了良好的定量时空和运动学步态参数,可以帮助医疗保健专业人员更好地了解印度患者的步态病理、治疗和康复。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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