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1 June 2020 An examination on shape feature extraction based on the elliptic approximation for spatial arrangement of earthenware pieces by using 3D measured point clouds
Kazuto Yoshikawa, Tsutomu Kinoshita, Kouichi Konno
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Proceedings Volume 11515, International Workshop on Advanced Imaging Technology (IWAIT) 2020; 115151O (2020) https://doi.org/10.1117/12.2567021
Event: International Workshop on Advanced Imaging Technologies 2020 (IWAIT 2020), 2020, Yogyakarta, Indonesia
Abstract
In this paper, we propose a method to estimate the height of nonadjacent pieces of earthenware. To estimate the height of a piece of earthenware without finding its adjacent pieces, a point cloud in the cross-section of the earthenware is obtained, and the obtained point cloud is approximated by an elliptic curve. An ellipse approximated from the cross-section of one piece is compared with an ellipse approximated from the cross- section of another piece, and the relative height of the pieces is estimated from the positions of the most similar ellipses.
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Kazuto Yoshikawa, Tsutomu Kinoshita, and Kouichi Konno "An examination on shape feature extraction based on the elliptic approximation for spatial arrangement of earthenware pieces by using 3D measured point clouds", Proc. SPIE 11515, International Workshop on Advanced Imaging Technology (IWAIT) 2020, 115151O (1 June 2020); https://doi.org/10.1117/12.2567021
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KEYWORDS
Clouds
3D metrology
Feature extraction
Tolerancing
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