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Computer-generated Moire profilometry
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DOI：10.1364/OE.25.026815.png)
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摘要
En 中文
A new 3D measuring method based on computer-generated moire fringes is proposed. The two AC components of the 0-degree and 90-degree phase-shifted fringe patterns on reference plane are prepared in advance. While the AC component of the single-shot deformed pattern is multiplied by the two prepared AC components, respectively, two computer-generated moire fringes can be retrieved. The ratio of the two computer-generated moire fringes is just the tangent of the phase modulated by the object. It is of great potential in real-time or even dynamical 3D measurement due to its single-shot deformed pattern feature, and it avoids the influences of the object's reflectivity simultaneously. Compared to the Fourier transform profilometry, its error is smaller due to its higher first-order spectrum. Experimental results show the feasibility and validity of the proposed method. (C) 2017 Optical Society of America
Keyword:
PHASE-MEASURING PROFILOMETRY
3D SHAPE MEASUREMENT
UNWRAPPING ALGORITHM
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IF:
3.3
论文数:
6.1W
被引数:
14.3W
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