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Proceedings Paper

Criteria for phase reconstruction using Fourier transformation method
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Paper Abstract

An analysis of the spatial resolution and sensitivity of Fourier transform method for fringe detection is carried out. The spatial resolution degradation due to Fourier transform is discussed through a signal processing technique. It is found that the upper-limit of spatial resolution for phase measurement is half the carrier fringe pitch, or half the grid pitch for grid method. The formulation of sensitivity using signal processing and communication theory is also performed and analyzed. The upper limit of the sensitivity for phase measurement is 2(pi) dividing by the number of pixels in a line of the fringe image. Measures to improve the spatial resolution, sensitivity are finally discussed.

Paper Details

Date Published: 16 November 2000
PDF: 10 pages
Proc. SPIE 4123, Image Reconstruction from Incomplete Data, (16 November 2000); doi: 10.1117/12.409279
Show Author Affiliations
Bing Zhao, Polytechnic Univ./Brooklyn (United States)
Anand Krishna Asundi, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 4123:
Image Reconstruction from Incomplete Data
Michael A. Fiddy; Rick P. Millane, Editor(s)

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