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Low-cost, smartphone-based instant three-dimensional registration system for infant functional near-infrared spectroscopy applications

Xia, Yunjia; Wang, Kui; Billing, Addison; Billing, Matthew; Cooper, Robert J; Zhao, Hubin; (2023) Low-cost, smartphone-based instant three-dimensional registration system for infant functional near-infrared spectroscopy applications. Neurophotonics , 10 (4) , Article 046601. 10.1117/1.NPh.10.4.046601. Green open access

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Abstract

Significance: To effectively apply functional near-infrared spectroscopy (fNIRS)/diffuse optical tomography (DOT) devices, a three-dimensional (3D) model of the position of each optode on a subject’s scalp and the positions of that subject’s cranial landmarks are critical. Obtaining this information accurately in infants, who rarely stop moving, is an ongoing challenge. // Aim: We propose a smartphone-based registration system that can potentially achieve a full-head 3D scan of a 6-month-old infant instantly. // Approach: The proposed system is remotely controlled by a custom-designed Bluetooth controller. The scanned images can either be manually or automatically aligned to generate a 3D head surface model. // Results: A full-head 3D scan of a 6-month-old infant can be achieved within 2 s via this system. In testing on a realistic but static infant head model, the average Euclidean error of optode position using this device was 1.8 mm. // Conclusions: This low-cost 3D registration system therefore has the potential to permit accurate and near-instant fNIRS/DOT spatial registration.

Type: Article
Title: Low-cost, smartphone-based instant three-dimensional registration system for infant functional near-infrared spectroscopy applications
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1117/1.NPh.10.4.046601
Publisher version: https://doi.org/10.1117/1.NPh.10.4.046601
Language: English
Additional information: Copyright © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 International License, https://creativecommons.org/licenses/by/4.0/ . Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Keywords: Functional near-infrared spectroscopy; diffuse optical tomography; spatial registration; three-dimensional scan; infant
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci > Department of Ortho and MSK Science
URI: https://discovery.ucl.ac.uk/id/eprint/10180471
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