Fiber-based high-speed fringe projection profilometry

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

doi:10.1016/j.optlastec.2024.111173

Fiber-based high-speed fringe projection profilometry

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

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

9 Downloads (Pure)

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
Article number	111173
Number of pages	6
Journal	Optics and Laser Technology
Volume	177
Early online date	21 May 2024
DOIs	https://doi.org/10.1016/j.optlastec.2024.111173
Publication status	Published - 31 Oct 2024

Funding

This work was financially supported by the Engineering and Physical Sciences Research Council (EP/T00097X/1, EP/T517896/1). SPM was financially supported by the Leverhulme Trust Early Career Fellowship. We thank Miles Padgett for useful discussions during the development of the project.

Keywords

fiber imaging
imaging
interferometry
profilometry

Access to Document

10.1016/j.optlastec.2024.111173Licence: CC BY 4.0

Johnson-etal-OLT-2024-Fiber-based-high-speed-fringe-projection-profilometryFinal published version, 1.74 MBLicence: CC BY 4.0

4 Citations
1 Working Paper/Preprint

Fiber-based high-speed fringe projection profilometry
Johnson, S., Gee, H., Nwachi, F. & Mekhail, S. P., 29 Jan 2024, Ithaca, NY.
Research output: Working paper/Preprint/Pre-registration › Working Paper/Preprint

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Cite this

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title = "Fiber-based high-speed fringe projection profilometry",

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.",

keywords = "fiber imaging, imaging, interferometry, profilometry",

author = "Steven Johnson and Hal Gee and Faith Nwachi and Mekhail, \{Simon Peter\}",

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language = "English",

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T1 - Fiber-based high-speed fringe projection profilometry

AU - Johnson, Steven

AU - Gee, Hal

AU - Nwachi, Faith

AU - Mekhail, Simon Peter

PY - 2024/10/31

Y1 - 2024/10/31

N2 - 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.

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.

KW - fiber imaging

KW - imaging

KW - interferometry

KW - profilometry

U2 - 10.1016/j.optlastec.2024.111173

DO - 10.1016/j.optlastec.2024.111173

M3 - Article

AN - SCOPUS:85193473553

SN - 0030-3992

VL - 177

JO - Optics and Laser Technology

JF - Optics and Laser Technology

M1 - 111173

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