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arXiv 2302.06381eess.IVcs.CV
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条纹投影轮廓术中的自监督相位解包裹

Self-supervised phase unwrapping in fringe projection profilometry

College of Computer Science, Sichuan University(四川大学计算机学院)

Xiaomin Gao, Wanzhong Song, Chunqian Tan, Junzhe Lei

AI总结:

本文提出一种面向单相机FPP的自监督相位解包裹方法,无需标签数据即可从64周期相位图恢复绝对条纹级次,在深度精度上优于DF-TPU,并在多种复杂真实场景中验证有效。

摘要:

快速且高精度的三维(3D)形状测量一直是条纹投影轮廓术(FPP)追求的目标。双频时间相位解包裹方法(DF-TPU)是实现这一目标的重要技术之一。然而,现有DF-TPU方法中高频图案的周期数通常受不可避免的相位误差限制,从而制约了测量精度。基于深度学习的单相机FPP相位解包裹方法通常需要带标签数据进行训练。本文针对单相机FPP系统提出了一种新颖的自监督相位解包裹方法。训练后的网络能够从一幅64周期相位图中恢复绝对条纹级次,并在深度精度方面优于DF-TPU方法。实验结果验证了该方法在运动模糊、孤立物体、低反射率和相位不连续等真实场景中的有效性。

英文摘要:

Fast-speed and high-accuracy three-dimensional (3D) shape measurement has been the goal all along in fringe projection profilometry (FPP). The dual-frequency temporal phase unwrapping method (DF-TPU) is one of the prominent technologies to achieve this goal. However, the period number of the high-frequency pattern of existing DF-TPU approaches is usually limited by the inevitable phase errors, setting a limit to measurement accuracy. Deep-learning-based phase unwrapping methods for single-camera FPP usually require labeled data for training. In this letter, a novel self-supervised phase unwrapping method for single-camera FPP systems is proposed. The trained network can retrieve the absolute fringe order from one phase map of 64-period and overperform DF-TPU approaches in terms of depth accuracy. Experimental results demonstrate the validation of the proposed method on real scenes of motion blur, isolated objects, low reflectivity, and phase discontinuity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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