Phase error correction algorithm for grating projection measurement system

被引：0

作者：

Wu, Shuyu ^{[1
,2
]}

Yang, Yimin ^{[1
]}

Zhong, Zhenyu ^{[2
]}

Lu, Xingjian ^{[2
]}

机构：

[1] School of Automation, Guangdong University of Technology, Guangzhou

[2] Guangdong Institute of Automation, Guangzhou

来源：

Zhong, Z. (zy.zhong@gia.ac.cn) | 1600年 / Chinese Optical Society卷 / 34期

关键词：

Least square method; Measurement; Monotonous smoothing algorithm;

D O I：

10.3788/AOS201434.0712005

中图分类号：

学科分类号：

摘要：

Based on monotonous growth characteristics of the phase of grating images, a monotonous smoothing algorithm based on least square method is proposed for phase error compensation. The monotonous characteristics and error of phase are analyzed in detail. Then a monotonous smoothing algorithm based on developed least square method is used to correct phase error of absolute phase diagram. Experimental results show that the gamma nonlinearity of the projector is reduced by more than 60%, and the corrected absolute phase has the advantage of good smooth.

引用

共 19 条

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