Cloud to CAD

AMES,ARLO L.

Sandia National Laboratories

关键词: Surfaces;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;    Data Processing;    Scale Models;    Algorithms;   

DOI  :  10.2172/782599
RP-ID  :  SAND2001-1283
RP-ID  :  AC04-94AL85000
RP-ID  :  782599

美国|英语

来源: UNT Digital Library

【 摘 要 】

This paper documents work performed to convert scanned range data to CAD solid model representation. The work successfully developed surface fitting algorithms for quadric surfaces (e.g. plane, cone, cylinder, and sphere), and a segmentation algorithm based entirely on surface type, rather than on a differential metric like Gaussian curvature. Extraction of all CAD-required parameters for quadric surface representation was completed. Approximate face boundaries derived from the original point cloud were constructed. Work to extrapolate surfaces, compute exact edges and solid connectivity was begun, but left incomplete due to funding reductions. The surface fitting algorithms are robust in the face of noise and degenerate surface forms.