An investigation of high dynamic range imaging of highly reflective surfaces based on deep learning 3D fringe projection

Wei Gao; Shixiang Wang

doi:10.1117/12.3009055

29 December 2023 An investigation of high dynamic range imaging of highly reflective surfaces based on deep learning 3D fringe projection

Wei Gao, Shixiang Wang

Author Affiliations +

Proceedings Volume 12976, Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2023); 1297615 (2023) https://doi.org/10.1117/12.3009055
Event: 8th Asia Pacific Conference on Optics Manufacture & 3rd International Forum of Young Scientists on Advanced Optical Manufacturing, 2023, Shenzhen, China

Abstract

Three-dimensional reconstruction of highly reflective surfaces has always been an important and difficult problem in structured light technology. In this paper, a novel method by combining optimal exposure with the adjustment of the intensity of projection fringes by deep learning is proposed a single frame method is used to extract the overexposed region in the optimal exposure time series for composite projection. By using the statistical histogram of the number of overexposed pixels of the measured object under different projection conditions, and combining with the proportion of pixels in the image that are not exposed, the optimal exposure time series is calculated and the overexposed area is automatically extracted. The single-frame composite high dynamic image is obtained by adjusting the projection intensity through absolute coordinates, which improves the single-frame high dynamic range technique for highly reflective surfaces. Several simulations and experiments were conducted. The experimental results show that the proposed method can effectively improve the 3D reconstruction accuracy of the highly reflective surface, and the number of effective pixels in the point cloud can reach more than 98%.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wei Gao and Shixiang Wang "An investigation of high dynamic range imaging of highly reflective surfaces based on deep learning 3D fringe projection", Proc. SPIE 12976, Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2023), 1297615 (29 December 2023); https://doi.org/10.1117/12.3009055

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