Phase unwrapping method based on multiple fringe patterns without use of equivalent wavelengths
Phase unwrapping method based on multiple fringe patterns without use of equivalent wavelengths
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DOI：
10.1016/j.optcom.2015.06.061
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发表时间：
2015-11-15
影响因子：
2.4
通讯作者：
Li, Xiaojie
中科院分区：
文献类型：
--
作者：
Song, Limei;Chang, Yulan;Li, Xiaojie
为了减少相位展开过程中的噪声增强，提出了一种新的多波长相移轮廓术的相位展开方法。在这种方法中，三维测量系统只采集到一系列只有三个波长的条纹图像，不需要计算等效波长和等效相位。因此，避免了噪声增强，从而提高了绝对相图恢复的精度。实验结果表明，与现有的TWPSP方法相比，该方法具有更好的鲁棒性和有效性。(C)2015爱思唯尔B.V.保留所有权利。
In order to decrease the noise enhancement in the process of phase unwrapping, we present a new phase unwrapping approach for multiple wavelength phase shift profilometry. In this approach, a series of fringe images with only three wavelengths are captured by the 3D measurement system, and it does not need to calculate the equivalent wavelengths and the equivalent phases. As a result, the noise enhancement is avoided, leading to improved precision in the absolute phase map recovery. Experiment results demonstrate that the proposed method is more robust and effective compared to the existing TWPSP method. (C) 2015 Elsevier B.V. All rights reserved.