Noise-immune phase unwrapping by use of calculated wrap regions

被引：51

作者：

Stetson, KA

Wahid, J

Gauthier, P

机构：

[1] RECOGNIT TECHNOL INC,FRAMINGHAM,MA 01701

[2] IMAGE SOFTWORKS INC,WESTFORD,MA 01886

来源：

APPLIED OPTICS | 1997年 / 36卷 / 20期

关键词：

interferometry; phase unwrapping; phase stepping;

D O I：

10.1364/AO.36.004830

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We implement a proposed method for noise-immune phase unwrapping through the calculation of what may be called wrap regions. The theory of this method is reformulated and discussed with regard to random wrapping, a phenomenon that occurs with diffusely reflecting objects if the optical phase change caused by a deformation is calculated by subtraction of the phases calculated before and after the deformation. Two methods of eliminating random wrapping are presented. The algorithm for phase unwrapping is described, and experimental results are presented. (C) 1997 Optical Society of America.

引用

页码：4830 / 4838

页数：9

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