Assessment of Fringe Pattern Decomposition with a Cross-Correlation Index for Phase Retrieval in Fringe Projection 3D Measurements.

Assessment of Fringe Pattern Decomposition with a Cross-Correlation Index for Phase Retrieval in Fringe Projection 3D Measurements.
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使用互相关指数评估条纹投影 3D 测量中相位检索的条纹图案分解

DOI:
10.3390/s18103578
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发表时间:
2018-10-22
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Guo Q
Guo Q
中科院分区:
其他
文献类型:
--
作者:
Zhu X;Song L;Wang H;Guo Q

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从单帧投影条纹图中恢复相位是条纹投影测量中的一个基本而又具有挑战性的问题,引起了广泛的关注,各种新的方法应运而生。许多相位恢复方法都是将条纹图分解为背景部分和条纹部分,然后从分解后的条纹部分获得相位。然而,分解结果受到模型参数的选择,这通常是手动执行的试错,由于缺乏分解评估规则下没有地面实况数据的情况下。在本文中,我们提出了一个互相关指数来评估分解和相位恢复的结果,而不需要地面真实数据。用傅里叶变换和最近提出的剪切波变换方法对模拟和真实的条纹图进行了验证。这项工作有助于自动相位恢复和三维(3D)测量与较少的人为干预,并可以潜在地应用于其他领域,如相位恢复数字全息。
Phase retrieval from single frame projection fringe patterns, a fundamental and challenging problem in fringe projection measurement, attracts wide attention and various new methods have emerged to address this challenge. Many phase retrieval methods are based on the decomposition of fringe patterns into a background part and a fringe part, and then the phase is obtained from the decomposed fringe part. However, the decomposition results are subject to the selection of model parameters, which is usually performed manually by trial and error due to the lack of decomposition assessment rules under a no ground truth data situation. In this paper, we propose a cross-correlation index to assess the decomposition and phase retrieval results without the need of ground truth data. The feasibility of the proposed metric is verified by simulated and real fringe patterns with the well-known Fourier transform method and recently proposed Shearlet transform method. This work contributes to the automatic phase retrieval and three-dimensional (3D) measurement with less human intervention, and can be potentially employed in other fields such as phase retrieval in digital holography.
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