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

Journal article


Xia, Y., Wang, K., Billing, A., Billing, M., Cooper, R.J. and Zhao, H. (2023). Low-cost, smartphone-based instant three-dimensional registration system for infant functional near-infrared spectroscopy applications. Neurophotonics. 10 (04). https://doi.org/10.1117/1.nph.10.4.046601
AuthorsXia, Y., Wang, K., Billing, A., Billing, M., Cooper, R.J. and Zhao, H.
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.

KeywordsRadiology, Nuclear Medicine and imaging; Radiological and Ultrasound Technology; Neuroscience (miscellaneous)
Year2023
JournalNeurophotonics
Journal citation10 (04)
PublisherSPIE-Intl Soc Optical Eng
ISSN2329-423X
Digital Object Identifier (DOI)https://doi.org/10.1117/1.nph.10.4.046601
Publication dates
Print23 Oct 2023
Publication process dates
Deposited01 Nov 2023
Publisher's version
License
File Access Level
Open
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