Identification and Characterization of Regular Surfaces from Unorganized Points by Normal Sensitivity Analysis

[+] Author and Article Information
Jianbing Huang

2321 North Loop Dr., EDS PLM Solutions, Ames, IA 50010-8281e-mail: huangj@ugs.com

Chia-Hsiang Menq

Coordinate Metrology and Measurement Laboratory, Department of Mechanical Engineering, The Ohio State University, Columbus, OH 43210-1154e-mail: menq.1@osu.edu

J. Comput. Inf. Sci. Eng 2(2), 115-124 (Sep 25, 2002) (10 pages) doi:10.1115/1.1509075 History: Received March 01, 2002; Revised July 01, 2002; Online September 25, 2002
Copyright © 2002 by ASME
Topics: Motion , Algorithms
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Data segmentation of an unorganized point cloud. (a) Original CAD model (b) Simulated point cloud (c) Manifold domain (d) Segmented manifold.
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Geometric characterization of a differential motion
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Regular surface identification and characterization from unorganized points
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Point clouds with different density. (a) d=1 (b) d=2 (c) d=4 (d) d=6
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Unorganized points with different coverage
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Primitive surface classification from identified free motion subspace. (a) Planar surface (b) Spherical surface (c) Cylindrical surface (d) Conic surface.
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Regular Swept surface reconstruction (top: identified axis, bottom: projected profile points). (a) Simulated points (b) Real range data digitized from a piston part.
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Geometric constraint recognition. (a) Identified translation axis (b) Segmented primitive surfaces (c) Jet engine: three coaxial surfaces.
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Example one: registration with sufficient constraints. (a) Perfect alignment (b) Transformed position (c) Registered position.
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Example two: insufficient constraints detected by free motion subspace identification. (a) Perfect alignment (b) Transformed position (c) Registered position.




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