25 August 2021 Rapid 3D measurement of high dynamic range surface based on multi-polarization fringe projection
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Abstract

It is challenging to measure objects with a high dynamic range surface. We propose a three-dimensional measurement method of high dynamic surfaces based on multi-polarization fringe projection. The saturated pixels can be recognized to get the optimal exposure time by projecting a series of designed auxiliary patterns onto the surface of the object. It does not need to project multiple N-step phase-shifting fringe patterns for recognition, and it greatly improves the detection speed and efficiency. A multi-polarization camera captures full-resolution phase-shifting images with four polarization directions simultaneously. An appropriate polarization direction is selected by analyzing the per-pixel of auxiliary images captured by camera, and then optimal phase-shifting fringe images with high quality are obtained. The effectiveness and rapidness of this method are verified by the measurement experiments of different objects, and the method provides a new idea for rapid measurement.

© 2021 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2021/$28.00 © 2021 SPIE
Yonghong Wang, Qian Zhang, Yin Hu, and Huanqing Wang "Rapid 3D measurement of high dynamic range surface based on multi-polarization fringe projection," Optical Engineering 60(8), 084107 (25 August 2021). https://doi.org/10.1117/1.OE.60.8.084107
Received: 21 June 2021; Accepted: 12 August 2021; Published: 25 August 2021
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CITATIONS
Cited by 4 scholarly publications.
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KEYWORDS
Image fusion

Phase shifts

Cameras

High dynamic range imaging

3D metrology

Polarization

Fringe analysis

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