Detection of pipe holes and their reconstruction based on circle-structured light

ZHANG YanHui;JIN CuiYun;WANG Ying

Journal of Beijing University of Chemical Technology ›› 2012, Vol. 39 ›› Issue (5) : 113-117.

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Journal of Beijing University of Chemical Technology ›› 2012, Vol. 39 ›› Issue (5) : 113-117.
机电工程和信息科学

Detection of pipe holes and their reconstruction based on circle-structured light

  • ZHANG YanHui;JIN CuiYun;WANG Ying
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Abstract

Based on machine vision, three-dimensional data for the inner surface of a pipe were obtained by circle-structured light in the form of a circumference, and hence a distance constraint has been proposed in order to detect holes. That is, on two adjacent circumferences, if the distances between two corresponding adjacent points are all smaller than a certain threshold, then we view this place as a non-hole; otherwise, we view it as a hole. A new triangulation method was also proposed to triangulate the point cloud data with holes, and to retain the holes. Finally, OpenGL was used for surface reconstruction to achieve three-dimensional visualization. The experimental results show that this method is fast and easy to implement, and it has a good visual effect.

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ZHANG YanHui;JIN CuiYun;WANG Ying. Detection of pipe holes and their reconstruction based on circle-structured light[J]. Journal of Beijing University of Chemical Technology, 2012, 39(5): 113-117

References

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