Stereoscopic facial imaging for pain assessment using rotational offset microlens arrays based structured illumination

Abstract Conventional pain assessment methods such as patients’ self-reporting restrict the possibility of easy pain monitoring while pain serves as an important role in clinical practice. Here we report a pain assessment method via 3D face reading camera assisted by dot pattern illumination. The fa...

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Autores principales:	Jae-Myeong Kwon, Sung-Pyo Yang, Ki-Hun Jeong
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Pain assessment 3D face imaging Stereo imaging Microlens arrays Structured light Optical MEMS Technology T
Acceso en línea:	https://doaj.org/article/da7475e4522d49fd8a9d7f58d381a794
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id	oai:doaj.org-article:da7475e4522d49fd8a9d7f58d381a794
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spelling	oai:doaj.org-article:da7475e4522d49fd8a9d7f58d381a7942021-11-21T12:03:46ZStereoscopic facial imaging for pain assessment using rotational offset microlens arrays based structured illumination10.1186/s40486-021-00139-y2213-9621https://doaj.org/article/da7475e4522d49fd8a9d7f58d381a7942021-11-01T00:00:00Zhttps://doi.org/10.1186/s40486-021-00139-yhttps://doaj.org/toc/2213-9621Abstract Conventional pain assessment methods such as patients’ self-reporting restrict the possibility of easy pain monitoring while pain serves as an important role in clinical practice. Here we report a pain assessment method via 3D face reading camera assisted by dot pattern illumination. The face reading camera module (FRCM) consists of a stereo camera and a dot projector, which allow the quantitative measurement of facial expression changes without human subjective judgement. The rotational offset microlens arrays (roMLAs) in the dot projector form a uniform dense dot pattern on a human face. The dot projection facilitates evaluating three-dimensional change of facial expression by improving 3D reconstruction results of non-textured facial surfaces. In addition, the FRCM provides consistent pain rating from 3D data, regardless of head movement. This pain assessment method can provide a new guideline for precise, real-time, and continuous pain monitoring.Jae-Myeong KwonSung-Pyo YangKi-Hun JeongSpringerOpenarticlePain assessment3D face imagingStereo imagingMicrolens arraysStructured lightOptical MEMSTechnologyTENMicro and Nano Systems Letters, Vol 9, Iss 1, Pp 1-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Pain assessment 3D face imaging Stereo imaging Microlens arrays Structured light Optical MEMS Technology T
spellingShingle	Pain assessment 3D face imaging Stereo imaging Microlens arrays Structured light Optical MEMS Technology T Jae-Myeong Kwon Sung-Pyo Yang Ki-Hun Jeong Stereoscopic facial imaging for pain assessment using rotational offset microlens arrays based structured illumination
description	Abstract Conventional pain assessment methods such as patients’ self-reporting restrict the possibility of easy pain monitoring while pain serves as an important role in clinical practice. Here we report a pain assessment method via 3D face reading camera assisted by dot pattern illumination. The face reading camera module (FRCM) consists of a stereo camera and a dot projector, which allow the quantitative measurement of facial expression changes without human subjective judgement. The rotational offset microlens arrays (roMLAs) in the dot projector form a uniform dense dot pattern on a human face. The dot projection facilitates evaluating three-dimensional change of facial expression by improving 3D reconstruction results of non-textured facial surfaces. In addition, the FRCM provides consistent pain rating from 3D data, regardless of head movement. This pain assessment method can provide a new guideline for precise, real-time, and continuous pain monitoring.
format	article
author	Jae-Myeong Kwon Sung-Pyo Yang Ki-Hun Jeong
author_facet	Jae-Myeong Kwon Sung-Pyo Yang Ki-Hun Jeong
author_sort	Jae-Myeong Kwon
title	Stereoscopic facial imaging for pain assessment using rotational offset microlens arrays based structured illumination
title_short	Stereoscopic facial imaging for pain assessment using rotational offset microlens arrays based structured illumination
title_full	Stereoscopic facial imaging for pain assessment using rotational offset microlens arrays based structured illumination
title_fullStr	Stereoscopic facial imaging for pain assessment using rotational offset microlens arrays based structured illumination
title_full_unstemmed	Stereoscopic facial imaging for pain assessment using rotational offset microlens arrays based structured illumination
title_sort	stereoscopic facial imaging for pain assessment using rotational offset microlens arrays based structured illumination
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/da7475e4522d49fd8a9d7f58d381a794
work_keys_str_mv	AT jaemyeongkwon stereoscopicfacialimagingforpainassessmentusingrotationaloffsetmicrolensarraysbasedstructuredillumination AT sungpyoyang stereoscopicfacialimagingforpainassessmentusingrotationaloffsetmicrolensarraysbasedstructuredillumination AT kihunjeong stereoscopicfacialimagingforpainassessmentusingrotationaloffsetmicrolensarraysbasedstructuredillumination
_version_	1718419275197186048

Stereoscopic facial imaging for pain assessment using rotational offset microlens arrays based structured illumination

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