Proceedings PaperAutomatic Determination Of Regular-Grid Distribution Of Fringe Order In Interference Images
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A computerized method of obtaining distribution of fringe order in points of regular grid from a skeletonized interferogram is prezented. This procedure is based on special algorithm of interpolation, named here as the quasi-gradient double-parabola method (OGP-method). This method is an improvement of the double-parabola method (DP-method). The procedure can be utilized as a subprogram in automated interpretation of interference images in different methods of optical metrology. The procedure can operate on microcomputers IBM PC/AT and compatible ones.