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Two methods for achieving sub-pixel resolution in phase difference determination by fringe pattern matching
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UNSPECIFIED (1997) Two methods for achieving sub-pixel resolution in phase difference determination by fringe pattern matching. In: Conference on Optical Inspection and Micromeasurements II, MUNICH, GERMANY, JUN 16-19, 1997. Published in: OPTICAL INSPECTION AND MICROMEASUREMENTS II, 3098 pp. 252-260. ISBN 0-8194-2518-4.
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Abstract
This paper presents the methods of linear interpolation and polynomial curve fitting for achieving subpixel resolution in phase difference determination by fringe pattern matching. These two methods were examined by computer simulation and experiment. In computer simulation, the effects of the resolutions of imaging system were also discussed. The computer simulation and experimental results have shown that the method of linear interpolation and that of polynomial curve fitting can both be used to achieve sub-pixel resolution in the measurement of phase difference by fringe pattern matching. The phase difference between fringe patterns is easy to achieve by linear interpolation compared with polynomial curve fitting.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QC Physics | ||||
Series Name: | PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) | ||||
Journal or Publication Title: | OPTICAL INSPECTION AND MICROMEASUREMENTS II | ||||
Publisher: | SPIE - INT SOC OPTICAL ENGINEERING | ||||
ISBN: | 0-8194-2518-4 | ||||
Editor: | Gorecki, C | ||||
Official Date: | 1997 | ||||
Dates: |
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Volume: | 3098 | ||||
Number of Pages: | 9 | ||||
Page Range: | pp. 252-260 | ||||
Publication Status: | Published | ||||
Title of Event: | Conference on Optical Inspection and Micromeasurements II | ||||
Location of Event: | MUNICH, GERMANY | ||||
Date(s) of Event: | JUN 16-19, 1997 |
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