3-DIMENSIONAL SHAPE-ANALYSIS BY USE OF A PROJECTED GRATING IMAGE

被引：25

作者：

SUGANUMA, M

YOSHIZAWA, T

机构：

来源：

OPTICAL ENGINEERING | 1991年 / 30卷 / 10期

关键词：

3-DIMENSIONAL SHAPE; GRATING PROJECTION; FOURIER TRANSFORMATION; MOIRE CONTOUR; PHASE DETECTION; FRINGE MULTIPLICATION; VISIBILITY ENHANCEMENT;

D O I：

10.1117/12.55963

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A grating pattern projected onto an object deforms in accordance with the three-dimensional shape of the surface. This deformed image can be analyzed by detecting the shifted phase of the original grating pattern with the aid of Fourier transformation. The profile of the object is expressed in moire contours as well as in a wire-frame model for the intuitive understanding of the shape. In this procedure, multiplication and visibility enhancement of moire fringes are performed with an improved result.

引用

页码：1529 / 1533

页数：5

共 7 条

[1] DIGITAL WAVEFRONT MEASURING INTERFEROMETER FOR TESTING OPTICAL SURFACES AND LENSES [J].