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In this work, we present a computational methodology and the corresponding software, developed for the semiautomatic detection of curves from two-dimensional (2D) ship hull drawings and their initial transformation to parametric curves (B-splines, NURBS), with the ultimate goal being the reconstruction of the three-dimensional (3D) shape of a ship hull, in the form of fully parametric geometrical entities. The proposed methodology includes the initial application of various filters to the scanned drawings, the application of a simple and novel clustering algorithm, to separate the targeted geometrical entities from background noise or unwanted features, and a computational methodology to semiautomatically discretize the resulting curves and produce ordered points, to be consequently used as interpolation points for the production of parametric curves. Some characteristic test cases are also presented to verify the effectiveness of the proposed procedure.

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Curve Identification and Digitization for the Reconstruction of Ship Hulls from 2D Drawings

  • 章节

  • 发表日期：

    2025年

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  • Argiris I. Delis,
  • Ioannis K. Nikolos,
  • Eleftherios S. Zografos,
  • Charilaos S. Zografos,
  • Sotirios S. Sarakinos,
  • Alexandros N. Konstantinis,
  • Petros Manousis,
  • Dimitra N. Pochani

摘要

In this work, we present a computational methodology and the corresponding software, developed for the semiautomatic detection of curves from two-dimensional (2D) ship hull drawings and their initial transformation to parametric curves (B-splines, NURBS), with the ultimate goal being the reconstruction of the three-dimensional (3D) shape of a ship hull, in the form of fully parametric geometrical entities. The proposed methodology includes the initial application of various filters to the scanned drawings, the application of a simple and novel clustering algorithm, to separate the targeted geometrical entities from background noise or unwanted features, and a computational methodology to semiautomatically discretize the resulting curves and produce ordered points, to be consequently used as interpolation points for the production of parametric curves. Some characteristic test cases are also presented to verify the effectiveness of the proposed procedure.