Calibration method for spinning fringe projection: proof-of-concept

Jace J. Holton; Beiwen Li

doi:10.1117/1.OE.57.1.014110

29 January 2018 Calibration method for spinning fringe projection: proof-of-concept

Jace J. Holton, Beiwen Li

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Optical Engineering, Vol. 57, Issue 1, 014110 (January 2018). https://doi.org/10.1117/1.OE.57.1.014110

Abstract

A structured light system with spinning fringe projection has been an excitement for three-dimensional (3-D) shape measurement since high-speed phase-shifting fringe patterns can be produced by mechanical spinning slide projectors. However, two cameras are typically required for 3-D reconstruction since the calibration method of spinning fringe projection is not well documented yet. This article introduces a computational framework for the calibration of spinning fringe projection profilometry using polar coordinate representation. In this preliminary study, we emulated the ideal spinning fringe projection with a video projector that can precisely control phase shifts with minimized harmonic errors. Results show that under the ideal scenario, our calibration method can reach an accuracy of 0.10 mm with a standard deviation of 0.73 mm by measuring a spherical object with 150 mm diameter.

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Jace J. Holton and Beiwen Li "Calibration method for spinning fringe projection: proof-of-concept," Optical Engineering 57(1), 014110 (29 January 2018). https://doi.org/10.1117/1.OE.57.1.014110

Received: 8 November 2017; Accepted: 9 January 2018; Published: 29 January 2018

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