Error analysis of shorter demodulation algorithms for phase-shifting interferometry

被引：0

作者：

Hui, M ^{[1
]}

Niu, HB ^{[1
]}

Li, QX ^{[1
]}

机构：

[1] Acad Sinica, Xian Inst Opt & Precis Mech, Xian 710068, Peoples R China

来源：

ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGY 2000 | 2000年 / 4231卷

关键词：

phase-shifting; phase demodulation algorithms; CCD camera; space bandwidth;

D O I：

10.1117/12.402845

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

More than four intensity values will become cumbersome if the space bandwidth product of the CCD camera is to be fully exploited. But the shortest algorithms are also the ones that are most sensitive to intensity noise, mechanical vibration. and errors in phase-shifting. This paper presents the four-frame shorter phase demodulation algorithm for PSI which nearly insensitive to linear error.

引用

页码：555 / 557

页数：3