Weaving posture analyzing system (WEPAS): introduction and validation

被引:9
作者
Choobineh, A
Hosseini, M
Lahmi, M
Sharifian, S
Hosseini, AH
机构
[1] Shiraz Univ Med Sci, Dept Occupat Hlth, Sch Hlth, Shiraz, Iran
[2] Univ Tehran Med Sci, Dept Epidemiol & Biostat, Sch Publ Hlth, Tehran, Iran
[3] Univ Tehran Med Sci, Publ Hlth Res Inst, Tehran, Iran
[4] Univ Tehran Med Sci, Dept Occupat Hlth, Sch Publ Hlth, Tehran, Iran
[5] Jihad Agr Minist, Engn Res Inst, Tehran, Iran
关键词
working posture measurement; image processing technique; hand-woven carpet weaving operation; 2D video-based technique;
D O I
10.1016/j.ergon.2004.03.004
中图分类号
T [工业技术];
学科分类号
08 [工学];
摘要
As a part of a comprehensive ergonomic study on hand-woven carpet weaving operation, in order to measure working posture, weaving posture analysis system (WEPAS), a two-dimensional video-based system for recording and analyzing weaving posture, based on image processing technology, has been developed. The reproducibility and accuracy of angle measurement obtained by use of WEPAS have been evaluated using a standard goniometer. The low standard deviations (<1degrees) and insignificant variations due to analysis repetitions indicate high reproducibility of WEPAS. WEPAS accuracy test has revealed that under the defined condition the size of error is small (< +/- 1degrees). In different combinations of angle and rotation (movement in horizontal plane), the size of errors falls within -3degrees-1.6degrees indicating acceptable accuracy for the objective of our study. Low cost of WEPAS, along with its highly reproducible, relatively accurate measurements as well as its easy set-up and calibration have made it applicable system for postural analysis in weaving operation. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:139 / 147
页数:9
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