• Title/Summary/Keyword: computer visionNURBS

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Reverse Engineering for Sculptured Surfaces by Using NURBS Approximation (역공학(Reverse Engineering)을 위한 자유곡면 형상의 NURBS Approximation)

  • Cho, Jae-Hyung;Cho, Myung-Woo
    • Journal of the Korean Society for Precision Engineering
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    • v.19 no.8
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    • pp.108-115
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    • 2002
  • In measuring step for reverse engineering of sculptured surfaces, computer vision system is used to simplify the complicated surface by boundary edge detection method that minimizes the measuring error. The measured data by Coordinate measuring machine is clouded data points of surfaces which is segmented surface using image process. In this research, the measured data is approximated as NURBS surfaces by new suggested algorithm. The position and number of control points, selection of parametric values and compensation of weight factors are proposed. Finally, surface model is simulated and improved resulting performance is obtained.