An international conference connecting people
in CAD research, education and business
Bookmark and Share
Copyright (C) CAD Solutions, LLC. All rights reserved.
Proceedings of CAD'14, 2014, 150-152
Reconstruction of Polygonal Faces from Large-Scale Point-Clouds of Engineering Plants

Hiroshi Masuda, Takeru Niwa, The University of Electro-Communications
Ichiro Tanaka, Tokyo Denki University
Ryo Matsuoka, The University of Tokyo

Abstract. The recent progress of mid-range and long-range laser scanners makes it possible to capture dense point-clouds of manufacturing plants. 3D models of manufacturing plants are useful for simulating the reorganizing of production lines, but a raw point-cloud does not have structures suitable for shape manipulation, and the data size is too large to handle for common PCs. Therefore, it is often required to convert point-clouds to simplified mesh models. So far, researchers have studied shape reconstruction of pipe structures by detecting cylindrical surfaces from large-scale point-clouds. In the reconstruction of pipes, the shape of a pipe can be easily reconstructed only by estimating the length of the cylinder when a cylindrical surface is extracted. On the other hand, planar faces may have very complicated boundaries, because surfaces are often be occluded by other surfaces in manufacturing plants. In addition, point-clouds by mid/long-range laser scanners are very noisy and contain a lot of outliers, and the boundary of each planar face becomes a perturbed curve. In this paper, we propose an efficient method for constructing simplified polygonal faces without the loss of detail shapes.

Keywords. Geometric modeling, point processing, reverse engineering, shape reconstruction, as-built modeling

DOI: 10.14733/cadconfP.2014.150-152