A Measuring and Analysis Method of Coupled Range of Motion of the Human Hands
A Measuring and Analysis Method of Coupled Range of Motion of the Human Hands
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DOI：
10.1109/smc.2013.448
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发表时间：
2013-10
期刊：
影响因子：
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通讯作者：
N. Miyata;Yuki Shimizu;Y. Maeda
中科院分区：
文献类型：
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作者：
N. Miyata;Yuki Shimizu;Y. Maeda
提出了一种模拟人手运动范围（ROM）的方法，该方法具有多个关节的协调运动。传统上，手的关节活动度是由观察到的极端姿势独立地限定每个关节角度来定义的。例如，观察关节完全伸展时的角度（最大）和完全弯曲时的角度（最小）。然而，很难用这样简单的边界来表达实际人类复杂的ROM。因此，我们通过定义收集到的各种姿态数据的外边界来建模手的ROM。两个关节角之间的每个关系都被表示为一个统一区域，在该区域中，平面上所有投影的测量姿态都使用a-凸包算法进行最小有界。本文将这种区域称为“耦合ROM”。在四个实验对象上进行了测量和建模实验，以验证所提出的ROM模型的基本特征。将提出的只读存储器的占用体积与简单的上下只读存储器的占用体积进行比较，并对协调关系进行排序和分类，以便受试者之间进行比较。
This paper proposed a method of modeling the range of motion (ROM) of the human hand, which has multiple joints that move in coordination. Traditionally, ROM of the hand was defined by independently bounding each joint angle from observation of extreme posutres. For example, the joint angle when fully extended (maximum) and that when fully flexed (minimum) were observed. However, it is difficult to express actual human's complex ROM with such simple boundaries. Therefore, we modeled ROM of the hand by defining outer boudary of collected various posture data. Each relationship between two of the joint angles was presented as a united area in which all the projected measured postures on the plane were minimally bounded using the a-convex hull algorithm. Such area was called "a coupled ROM" in this paper. Measurement and modeling experiments on four subjects were conducted to demonstrate basic characteristics of the proposed ROM model. The occupied volume of the proposed ROM was compared with that of the simple upper-lower ROM. The coordinatinated relationships were ranked and categorized for comparison among subjects.