3D surface reconstruction of transparent objects using structured light with PMP-LIF method

Xinming Zhang; Haorong Gu; Hao Jiang; Weijie Fu

doi:10.1117/12.3035755

16 August 2024 3D surface reconstruction of transparent objects using structured light with PMP-LIF method

Xinming Zhang, Haorong Gu, Hao Jiang, Weijie Fu

Proceedings Volume 13230, Third International Conference on Machine Vision, Automatic Identification, and Detection (MVAID 2024); 132300I (2024) https://doi.org/10.1117/12.3035755
Event: Third International Conference on Machine Vision, Automatic Identification and Detection, 2024, Kunming, China

Abstract

Acquiring high-quality 3D information from transparent materials, which exhibit weak light scattering and absorption characteristics, presents a formidable challenge. In this paper, we introduce a novel three-dimensional reconstruction method called PMP-LIF (Phase Measurement Profilometry with Laser-Induced Fluorescence). This approach uses machine vision and incorporates structured light technology with laser-induced fluorescence to enhance the reliability and robustness of surface profile data for transparent objects by improving their reflectivity. In our study, we accomplished a three-dimensional reconstruction of surface profiles for transparent materials by employing a structured light pattern with a 544 nm wavelength, projected using a DLP (Digital Light Processing) projector. The image data was captured using a binocular vision system. Any distorted information within the image data was processed using image processing techniques, such as a phase unwrapping algorithm. The adoption of the PMP-LIF method for image data acquisition streamlines the complexity of the image acquisition system while preserving the accuracy of surface profile information. We conducted three-dimensional reconstruction tests on various objects, including human face shapes, on the surfaces of static liquids and transparent aspheric mirror blanks. The results reveal root-mean-square errors of 0.34 mm and 1.67 mm for the registration of the reconstructed point cloud information with fitting planes, respectively.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xinming Zhang, Haorong Gu, Hao Jiang, and Weijie Fu "3D surface reconstruction of transparent objects using structured light with PMP-LIF method", Proc. SPIE 13230, Third International Conference on Machine Vision, Automatic Identification, and Detection (MVAID 2024), 132300I (16 August 2024); https://doi.org/10.1117/12.3035755

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