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Fringe localization using focus measure
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DOI：10.1364/OL.36.003798.png)
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摘要
En 中文
A method for automated evaluation of fringe localization using focus measure is demonstrated experimentally. Dual-illumination digital holographic interferometry is used to generate phase difference maps (PDMs) of a rough test object. Focus measure values of the PDMs along the axial direction (increment: 10 lambda = 6.33 mu m) yield an inverted bell-shaped curve which, in turn, facilitates the characterizations of the plane and region of fringe localization. The method can be applied in the distance measurement of rough objects and in the optimization of fringe visibility. (C) 2011 Optical Society of America
Keyword:
VISIBILITY INTERFERENCE-FRINGES
DIGITAL HOLOGRAPHY
SHAPE MEASUREMENT
DEPTH
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W
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