Fiber-based high-speed fringe projection profilometry

Steven Johnson; Hal Gee; Faith Nwachi; Simon Peter Mekhail

doi:10.48550/arXiv.2401.16171

Fiber-based high-speed fringe projection profilometry

Steven Johnson
, Hal Gee
, Faith Nwachi
, Simon Peter Mekhail

Physics

Research output: Working paper/Preprint/Pre-registration › Working Paper/Preprint

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Abstract

Phase shift profilometry has become a standard technique for recording the surface of an object using the projection of sinusoidal patterns. We present a method of projecting the patterns via a pair of single-mode optical fibers mounted within a needle. The system presented can capture sub-millimetre precision depth profiles at 60 frames per second. The key features of the system that enable the high-speed imaging are the creation of an automated calibration system and developments in the image unwrapping and reconstruction algorithms to produce high fidelity surface measurements. These methods produce a compact projection system capable of accurate and fast profilometry.

Original language	English
Place of Publication	Ithaca, NY
DOIs	https://doi.org/10.48550/arXiv.2401.16171
Publication status	Published - 29 Jan 2024

Funding

Engineering and Physical Sciences Research Council (EP/T00097X/1, EP/T517896/1). The Leverhulme Trust Early Career Fellowships.

Keywords

fiber imaging
imaging
interferometry
profilometry

Access to Document

10.48550/arXiv.2401.16171Licence: CC BY 4.0

Johnson-etal-arXiv-2024-Fiber-based-high-speed-fringe-projection-profilometryFinal published version, 3.84 MBLicence: CC BY 4.0

1 Article

Fiber-based high-speed fringe projection profilometry
Johnson, S., Gee, H., Nwachi, F. & Mekhail, S. P., 31 Oct 2024, In: Optics and Laser Technology. 177, 6 p., 111173.
Research output: Contribution to journal › Article › peer-review

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Cite this

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abstract = "Phase shift profilometry has become a standard technique for recording the surface of an object using the projection of sinusoidal patterns. We present a method of projecting the patterns via a pair of single-mode optical fibers mounted within a needle. The system presented can capture sub-millimetre precision depth profiles at 60 frames per second. The key features of the system that enable the high-speed imaging are the creation of an automated calibration system and developments in the image unwrapping and reconstruction algorithms to produce high fidelity surface measurements. These methods produce a compact projection system capable of accurate and fast profilometry.",

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AB - Phase shift profilometry has become a standard technique for recording the surface of an object using the projection of sinusoidal patterns. We present a method of projecting the patterns via a pair of single-mode optical fibers mounted within a needle. The system presented can capture sub-millimetre precision depth profiles at 60 frames per second. The key features of the system that enable the high-speed imaging are the creation of an automated calibration system and developments in the image unwrapping and reconstruction algorithms to produce high fidelity surface measurements. These methods produce a compact projection system capable of accurate and fast profilometry.

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ER -

Fiber-based high-speed fringe projection profilometry

Abstract

Funding

Keywords

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Research output

Fiber-based high-speed fringe projection profilometry

Cite this