著者

黄 健

出版者

近畿大学工学部

雑誌

近畿大学工学部研究報告 = Research reports of the Faculty of Engineering, Kinki University (ISSN:0386491X)

巻号頁・発行日

no.43, pp.91-96, 2009-12-01

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This paper presents a method for measuring the spatial cognitive ability of the moving distance of the human hand by using motion capture (MoCap). To improve the measurement accuracy of MoCap, a method involving the use of an upper limb model is proposed in this paper. The proposed method has many advantages such as the use of a small number of markers,and better alternatives for marker sticking positions that can reduce inaccuracies due to small muscular deformation. To investigate the cognitive ability of the moving distance of a human hand, both horizontal and vertical hand movements are measured using the proposed protocol for six subjects. The results demonstrate that the average moving distances obtained in both directions become coloser to the standard length compared with the results obtained in the previous study. The experimental results also demonstrate a strong relationship between error of the hand moving distance and manipulability of the upper limb. Moreover, the maximum velocity observed during horizontal and vertical movements are compared; and the result implies that the gravitational force exerted on the arm evidently atlects the hand movement in the blindfolded state during vertical movement.