Method of analyzing fringe image having separate regions

Details Method of analyzing fringe image having separate regions Method of analyzing fringe image having separate regions

2005-02-22

2005-02-22

Johns, Andrew W. (Department: 2621)

Image analysis

Image transformation or preprocessing

Selecting a portion of an image

C382S237000

Reexamination Certificate

active

06859566

ABSTRACT:
In a method of analyzing a fringe image, a mask is provided to a gap for separating a plurality of fringe image regions from each other, a virtual fringe distribution is once rendered to the mask region so as to yield a single fringe image, a fringe analysis is carried out thereafter, and then data of the mask region is deleted, so that the separated independent regions have a phase relationship therebetween, whereby information of the object to be observed is obtained at a high speed.

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Takajo, Hiroaki et al., “Least-Squares Phase Estimation from the Phase Difference,”Journal of the Optical Society of American A, Mar. 1988, pp. 416-425, vol. 5, No. 3.

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