A shape-based inter-layer contours correspondence method for ICT-based reverse engineering

Liming Duan, Shangpeng Yang, Gui Zhang, Fei Feng and Minghui Gu

PLOS ONE, 2017, vol. 12, issue 5, 1-16

Abstract: The correspondence of a stack of planar contours in ICT (industrial computed tomography)-based reverse engineering, a key step in surface reconstruction, is difficult when the contours or topology of the object are complex. Given the regularity of industrial parts and similarity of the inter-layer contours, a specialized shape-based inter-layer contours correspondence method for ICT-based reverse engineering was presented to solve the above problem based on the vectorized contours. In this paper, the vectorized contours extracted from the slices consist of three graphical primitives: circles, arcs and segments. First, the correspondence of the inter-layer primitives is conducted based on the characteristics of the primitives. Second, based on the corresponded primitives, the inter-layer contours correspond with each other using the proximity rules and exhaustive search. The proposed method can make full use of the shape information to handle industrial parts with complex structures. The feasibility and superiority of this method have been demonstrated via the related experiments. This method can play an instructive role in practice and provide a reference for the related research.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0176383

DOI: 10.1371/journal.pone.0176383

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