Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Noncontact Type Three Dimensional Profile Measurement for CAD Modeling of Sculptured Surface

자유곡면의 CAD 모델링을 위한 비접촉식 삼차원 형상측정

  • Park, H.G. (Korea Advanced Institute of Science and Technology) ;
  • Park, Y.B. ;
  • Kim, S.W.
  • Published : 1995.01.01
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Abstract

An optical measurement method of three dimensional surface profiles which is named the slit beam projection is suggested and practically implemented. This method is intended especially for noncontact and fast digitization of sculptured surfaces for CAD modeling and die manufacturing. Its basic principles are based on geometric optics. Deatiled optical principles and an sub-pixel image processing technique to enhance the measuring resolutions are described in this study. The measuring performances of the slit beam projection are presented and discussed to demonstrate that an actual measuring accuracy of below .+-. 0.2mm can be achived over the whole measuring range(500mm*300mm*200mm)

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