A new phase alignment method for digital projector in phase measuring profilometry

被引：5

作者：

Key Laboratory of Measurement and Control for Complex System of Ministry of Education, Southeast University, Nanjing 210096, China ^{[1
]}

机构：

[1] Key Laboratory of Measurement and Control for Complex System of Ministry of Education, Southeast University

来源：

Zidonghua Xuebao Acta Auto. Sin. | 2008年 / 11卷 / 1363-1368期

关键词：

Optical measurement; Phase alignment; Projected fringe;

D O I：

10.3724/SP.J.1004.2008.01363

中图分类号：

学科分类号：

摘要：

A new phase alignment method for digital projector is proposed. In the phase measuring profilometry, a key problem is to project sinusoidal fringes. By the n step phase shifting method, the ideal phase can be obtained by the image of the fringes, then based on the mapping relations of the ideal phase and the actual phase, the phase pattern on the digital projector can be aligned automatically. Experiments show that the proposed method can decrease the error of the projected fringes effectively, and that better sinusoidal fringes can be achieved to improve the measurement precision.

引用

页码：1363 / 1368

页数：5

共 12 条

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