dc.contributor.author |
Brennan, Kieran |
en |
dc.contributor.author |
Kulasingham, Daniel |
en |
dc.contributor.author |
Nielsen, Poul |
en |
dc.contributor.author |
Taberner, Andrew |
en |
dc.contributor.author |
Ruddy, Bryan |
en |
dc.date.accessioned |
2020-01-09T00:23:50Z |
en |
dc.date.issued |
2019-01 |
en |
dc.identifier.citation |
JOURNAL OF OPTICS 21(1):8 pages Article number 015604 Jan 2019 |
en |
dc.identifier.issn |
2040-8978 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/49419 |
en |
dc.description.abstract |
© 2018 IOP Publishing Ltd. We describe a system for high-speed depth estimation of a light source embedded in a scattering medium. A polynomial model estimates source depth from the spatially-resolved, diffuse reflectance profile measured with a fibre optic probe on the surface of a scattering medium. A dataset of Monte Carlo reflectance profiles is generated over a range of typical optical properties and the model is fit to the simulated reflectance at four detector locations. The model accounts for a source depth up to 15 mm. Cross-validation using the Monte Carlo dataset produced a root mean square error of 0.12 mm. Experimental reflectance data is acquired with the detector probe, which consists of four optical fibres mounted in a black acetal plastic disk. The optical fibres are coupled into avalanche photodiodes for high-speed acquisition of the reflectance profile. When applied to measurements from a tissue-mimicking phantom with an embedded light source, the polynomial model generates depth estimates within 2 mm of the true depth, up to a source depth of 15 mm. |
en |
dc.publisher |
IOP Publishing |
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dc.relation.ispartofseries |
Journal of Optics |
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dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
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dc.rights |
This is an author-created, un-copyedited version of an article accepted for publication/published
in Journal of Optics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi.org/10.1088/2040-8986/aaf4db |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.rights.uri |
http://ioppublishing.org/wp-content/uploads/2016/05/J-VAR-LF-0216-Author-Rights-New-5.pdf |
en |
dc.title |
High-speed light source depth estimation using spatially-resolved diffuse imaging |
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dc.type |
Journal Article |
en |
dc.identifier.doi |
10.1088/2040-8986/aaf4db |
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pubs.issue |
1 |
en |
pubs.volume |
21 |
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dc.rights.holder |
Copyright: IOP Publishing Ltd |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/OpenAccess |
en |
pubs.subtype |
Article |
en |
pubs.elements-id |
757432 |
en |
pubs.org-id |
Bioengineering Institute |
en |
pubs.org-id |
ABI Associates |
en |
pubs.org-id |
Engineering |
en |
pubs.org-id |
Engineering Science |
en |
pubs.org-id |
Science |
en |
pubs.org-id |
Science Research |
en |
pubs.org-id |
Maurice Wilkins Centre (2010-2014) |
en |
pubs.number |
015604 |
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pubs.record-created-at-source-date |
2018-12-04 |
en |
pubs.online-publication-date |
2018-12-18 |
en |