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Proceedings Paper

Interpolation methods using irregularly spaced coating performance data
Author(s): Eric C. Fest
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Paper Abstract

Interpolation routines based on polynomials, splines, linear triangulation, and distance weighting techniques are tested. Two data sets containing irregularly distributed point values with two independent variables (wavelength and angle of incidence) are used as input data. The accuracy of interpolated values at unvisited points and processing time are used as criteria to determine the merits of the various interpolation algorithms. Effectiveness of distance weighting methods was found to be largely dependent on the number of neighbors used. For both gradually and abruptly changing data, the most accurate models used squared inverse distance weighting. Linear triangulation was found to be the fastest method.

Paper Details

Date Published: 27 September 1999
PDF: 8 pages
Proc. SPIE 3780, Optical Design and Analysis Software, (27 September 1999); doi: 10.1117/12.363765
Show Author Affiliations
Eric C. Fest, Optical Research Associates (United States)


Published in SPIE Proceedings Vol. 3780:
Optical Design and Analysis Software
Richard C. Juergens, Editor(s)

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