대한인간공학회지 (Journal of the Ergonomics Society of Korea)

  • 제25권2호
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  • Pages.51-62
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  • 2006
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  • 1229-1684(pISSN)
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  • 2093-8462(eISSN)
대한인간공학회 (Ergonomics Society of Korea)
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2차원 면에서의 자세 관측시 시야각이 관절각 추정에 미치는 영향

Effects of Viewing Angle on the Estimation of Joint Angles in the 2-dimensional Plane

  • 발행 : 2006.05.31
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초록

In assessing risks related to working posture, pictures of postures are taken from various directions, which can be a source of observation error. Joint postures of the neck, lower back, knee, shoulder, and elbow were taken from 7 different viewing angles and 19 observers estimated joint angles by observing the pictures in 2-dimensional display. The joint angles were also measured using an optoelectronic motion measurement system. The estimation error increased as the viewing angle varies from the right side of the human body, but the patterns differ according to which joint angles were being observed. Guidelines to increase the validity of observation of joint angles were presented based on the results. In general, it is recommended to maintain the viewing angle within 20 degrees from the right side of the human body, while different ranges of viewing angle are recommended for each joint angle.

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피인용 문헌

  1. A Study for the Appropriateness of the Different Reference Points in the Analysis of Working Posture vol.30, pp.5, 2011, https://doi.org/10.5143/JESK.2011.30.5.637