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Effect of image patch size on phase difference determination by fringe pattern matching
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UNSPECIFIED (1997) Effect of image patch size on phase difference determination by fringe pattern matching. OPTICAL ENGINEERING, 36 (9). pp. 2482-2488. ISSN 0091-3286.
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Abstract
The effect of image patch size on phase difference determination by fringe pattern matching is discussed, The standard deviations based on the measurements from different sizes of image patches are derived from the statistical analysis of the fringe pattern matching process. The effect of image patch size on phase difference determination is examined by both computer simulation and experimentation. The background noise levels of interferograms are obtained by computer generated speckle noise, Gaussian noise and salt and pepper noise added to ideal fringe patterns, and the results from different sizes of image patches were acquired by fringe pattern matching in the simulation. The experimental results were also achieved from different sizes of image patches. The computer simulation and experimental results have shown that the larger image patches have a better accuracy in the presence of noise, which is in accordance with the results from theoretical analysis. (C) 1997 Society of Photo-Optical instrumentation Engineers.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | OPTICAL ENGINEERING | ||||
Publisher: | SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS | ||||
ISSN: | 0091-3286 | ||||
Official Date: | September 1997 | ||||
Dates: |
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Volume: | 36 | ||||
Number: | 9 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 2482-2488 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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