Comparison between optical coherence tomography and phase shifting profilometry for surface estimation

Gutiérrez Gutiérrez, José Alberto; Mieites Alonso, Verónica; Pardo Franco, Arturo; López Higuera, José Miguel; Conde Portilla, Olga María

doi:10.1117/12.2670564

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ComparisonBetweenOpt ... (2.740Mb)

Identificadores

URI: https://hdl.handle.net/10902/32218

DOI: 10.1117/12.2670564

ISSN: 0277-786X

ISSN: 1996-756X

Fecha

2023-08-11

Derechos

© 2023 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Publicado en

Proceedings of SPIE, 2023, 12627, 126271P

Translational Biophotonics: Diagnostics and Therapeutics III, Munich, Germany, 2023

Editorial

SPIE Society of Photo-Optical Instrumentation Engineers

Enlace a la publicación

https://doi.org/10.1117/12.2670564

Palabras clave

SFDI

OCT

PSP

Hyperspectral

Height map

Surface profile

Profilometry

Resumen/Abstract

Profilometry is the technique that estimates the surface height and tomography of a sample. This technique is crucial to correct the intensity variations and angle changes when optical properties of a sample are estimated and its calculation depends on the surface profile. Two systems have been evaluated in this work: an Optical Coherence Tomography (OCT) system and a Spatial-Frecuency Domain Imaging (Hyperspectral-SFDI) system made up of a rotating mirror hyperspectral camera and a Red-Green-Blue (RGB) projector. The estimation of the height map with the OCT system based on the high contrasted backscattering of the air-sample interface whereas, while with the HSI-SFDI system the Phase Shifting Profilometry (PSP) technique has been implemented employing different frequencies. This work compares both approaches and evaluates the differences between them.