A decoupling method based on phase-shift calculation by encoding color fringe pattern

IF 3.5 2区 工程技术 Q2 OPTICS
Yanjun Fu, Yunzhan Li, Fangfang Li, Guangyu Jiang, Yiliang Huang
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引用次数: 0

Abstract

Although the RGB channel requires fewer images for performing 3D measurement than the sinusoidal fringe phase-shift method, the coupling between the channels affect the measurement accuracy. Along these lines, a novel decoupling method was proposed, which was based on phase-shift calculation by encoding sinusoidal color fringe patterns. In our approach, every six sinusoidal fringes in the sinusoidal fringe phase-shift method are encoded into four sinusoidal color fringe patterns. These sinusoidal color fringes can replace six sinusoidal fringes without the effect of crosstalk. Compared with the traditional sinusoidal color fringe phase-shift method, a higher measurement accuracy was demonstrated. Moreover, there was no need for preprocessing and post-processing, and the calculation speed was faster.
基于相移计算的彩色条纹编码解耦方法
虽然与正弦波条纹相移法相比,RGB 通道进行三维测量所需的图像更少,但通道之间的耦合会影响测量精度。因此,我们提出了一种新颖的去耦方法,该方法是通过编码正弦彩色条纹图案进行相移计算。在我们的方法中,正弦条纹相移法中的每六个正弦条纹被编码成四个正弦彩色条纹图案。这些正弦彩色条纹可以取代六个正弦条纹,而不会产生串扰。与传统的正弦彩色条纹相移法相比,该方法的测量精度更高。此外,无需预处理和后处理,计算速度也更快。
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来源期刊
Optics and Lasers in Engineering
Optics and Lasers in Engineering 工程技术-光学
CiteScore
8.90
自引率
8.70%
发文量
384
审稿时长
42 days
期刊介绍: Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods. Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following: -Optical Metrology- Optical Methods for 3D visualization and virtual engineering- Optical Techniques for Microsystems- Imaging, Microscopy and Adaptive Optics- Computational Imaging- Laser methods in manufacturing- Integrated optical and photonic sensors- Optics and Photonics in Life Science- Hyperspectral and spectroscopic methods- Infrared and Terahertz techniques
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