Accuracy and Reliability of the Kinect Version 2 for Clinical Measurement of Motor Function.
Accuracy and Reliability of the Kinect Version 2 for Clinical Measurement of Motor Function.
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DOI：
10.1371/journal.pone.0166532
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Schmitz-Hübsch T
中科院分区：
文献类型：
--
作者：
Otte K;Kayser B;Mansow-Model S;Verrel J;Paul F;Brandt AU;Schmitz-Hübsch T
低成本光学3D运动跟踪传感器的引入为运动功能障碍的有效量化提供了新的选择。本研究旨在评价Kinect V2传感器与金标准运动捕捉系统在跟踪标志运动的准确性以及衍生临床参数的准确性和可重复性方面的差异。19名健康受试者同时使用Kinect V2传感器和光学运动跟踪系统（Vicon）进行记录。六个不同的运动任务记录与3D全身运动学从两个系统。任务包括在不同条件下行走，平衡和自适应姿势控制。在时间和空间对齐后，运动信号的一致性由Pearson相关系数和每个维度的信噪比来描述。根据这些运动信号，计算45个临床参数，包括运动范围、躯干摇摆、运动速度和节奏。参数的准确度描述为绝对一致性、一致性一致性和一致性限度。3至5次测量重复的会话内可靠性被描述为每个系统的测量的重复性系数和标准误差。Kinect V2标志移动的准确性为中等至优秀，取决于移动尺寸、标志位置和执行的任务。信噪比提供了有关Kinect V2地标稳定性的信息，并表明脚和脚踝的噪声行为较大。两个系统之间的大多数临床参数显示出良好到极好的绝对一致性（30个参数显示ICC（3，1）> 0.7）和一致性（38个参数显示r > 0.7）。考虑到该系统是低成本、便携式的并且不需要任何传感器附接到身体，当与建立的基于标记或可穿戴传感器的系统相比时，它可以提供许多优点。Kinect V2有可能被用作可靠和有效的临床测量工具。
The introduction of low cost optical 3D motion tracking sensors provides new options for effective quantification of motor dysfunction. The present study aimed to evaluate the Kinect V2 sensor against a gold standard motion capture system with respect to accuracy of tracked landmark movements and accuracy and repeatability of derived clinical parameters. Nineteen healthy subjects were concurrently recorded with a Kinect V2 sensor and an optical motion tracking system (Vicon). Six different movement tasks were recorded with 3D full-body kinematics from both systems. Tasks included walking in different conditions, balance and adaptive postural control. After temporal and spatial alignment, agreement of movements signals was described by Pearson’s correlation coefficient and signal to noise ratios per dimension. From these movement signals, 45 clinical parameters were calculated, including ranges of motions, torso sway, movement velocities and cadence. Accuracy of parameters was described as absolute agreement, consistency agreement and limits of agreement. Intra-session reliability of 3 to 5 measurement repetitions was described as repeatability coefficient and standard error of measurement for each system. Accuracy of Kinect V2 landmark movements was moderate to excellent and depended on movement dimension, landmark location and performed task. Signal to noise ratio provided information about Kinect V2 landmark stability and indicated larger noise behaviour in feet and ankles. Most of the derived clinical parameters showed good to excellent absolute agreement (30 parameters showed ICC(3,1) > 0.7) and consistency (38 parameters showed r > 0.7) between both systems. Given that this system is low-cost, portable and does not require any sensors to be attached to the body, it could provide numerous advantages when compared to established marker- or wearable sensor based system. The Kinect V2 has the potential to be used as a reliable and valid clinical measurement tool.
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影响因子：
2.4
作者：
Yeung, L. F.;Cheng, Kenneth C.;Tong, Kai-Yu
通讯作者：
Tong, Kai-Yu
DOI：
10.1249/01.mss.0000185660.38335.de
发表时间：
2005-11-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Welk, GJ
通讯作者：
Welk, GJ
影响因子：
5.1
作者：
Behrens J;Pfüller C;Mansow-Model S;Otte K;Paul F;Brandt AU
通讯作者：
Brandt AU
影响因子：
5.8
作者：
Behrens, Janina R.;Mertens, Sebastian;Schmitz-Huebsch, Tanja
通讯作者：
Schmitz-Huebsch, Tanja
影响因子：
2.4
作者：
Spain, R. I.;George, R. J. St.;Salarian, A.;Mancini, M.;Wagner, J. M.;Horak, F. B.;Bourdette, D.
通讯作者：
Bourdette, D.