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Article: Automatic Detection and Reproduction of Natural Head Position in Stereo-Photogrammetry

TitleAutomatic Detection and Reproduction of Natural Head Position in Stereo-Photogrammetry
Authors
Issue Date2015
PublisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action
Citation
PLoS One, 2015, v. 10 n. 6, p. e0130877 How to Cite?
AbstractThe aim of this study was to develop an automatic orientation calibration and reproduction method for recording the natural head position (NHP) in stereo-photogrammetry (SP). A board was used as the physical reference carrier for true verticals and NHP alignment mirror orientation. Orientation axes were detected and saved from the digital mesh model of the board. They were used for correcting the pitch, roll and yaw angles of the subsequent captures of patients' facial surfaces, which were obtained without any markings or sensors attached onto the patient. We tested the proposed method on two commercial active (3dMD) and passive (DI3D) SP devices. The reliability of the pitch, roll and yaw for the board placement were within ±0.039904°, ±0.081623°, and ±0.062320°; where standard deviations were 0.020234°, 0.045645° and 0.027211° respectively. CONCLUSION: Orientation-calibrated stereo-photogrammetry is the most accurate method (angulation deviation within ±0.1°) reported for complete NHP recording with insignificant clinical error.
Persistent Identifierhttp://hdl.handle.net/10722/220110
ISSN
2015 Impact Factor: 3.057
2015 SCImago Journal Rankings: 1.395
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHsung, TC-
dc.contributor.authorLo, J-
dc.contributor.authorLi, TS-
dc.contributor.authorCheung, LK-
dc.date.accessioned2015-10-16T06:29:18Z-
dc.date.available2015-10-16T06:29:18Z-
dc.date.issued2015-
dc.identifier.citationPLoS One, 2015, v. 10 n. 6, p. e0130877-
dc.identifier.issn1932-6203-
dc.identifier.urihttp://hdl.handle.net/10722/220110-
dc.description.abstractThe aim of this study was to develop an automatic orientation calibration and reproduction method for recording the natural head position (NHP) in stereo-photogrammetry (SP). A board was used as the physical reference carrier for true verticals and NHP alignment mirror orientation. Orientation axes were detected and saved from the digital mesh model of the board. They were used for correcting the pitch, roll and yaw angles of the subsequent captures of patients' facial surfaces, which were obtained without any markings or sensors attached onto the patient. We tested the proposed method on two commercial active (3dMD) and passive (DI3D) SP devices. The reliability of the pitch, roll and yaw for the board placement were within ±0.039904°, ±0.081623°, and ±0.062320°; where standard deviations were 0.020234°, 0.045645° and 0.027211° respectively. CONCLUSION: Orientation-calibrated stereo-photogrammetry is the most accurate method (angulation deviation within ±0.1°) reported for complete NHP recording with insignificant clinical error.-
dc.languageeng-
dc.publisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action-
dc.relation.ispartofPLoS One-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleAutomatic Detection and Reproduction of Natural Head Position in Stereo-Photogrammetry-
dc.typeArticle-
dc.identifier.emailHsung, TC: tchsung@hku.hk-
dc.identifier.emailLo, J: drjohnlo@hkucc.hku.hk-
dc.identifier.emailCheung, LK: lkcheung@hkucc.hku.hk-
dc.identifier.authorityLo, J=rp00041-
dc.identifier.authorityCheung, LK=rp00013-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1371/journal.pone.0130877-
dc.identifier.pmid26125616-
dc.identifier.pmcidPMC4488321-
dc.identifier.hkuros255224-
dc.identifier.volume10-
dc.identifier.issue6-
dc.identifier.spagee0130877-
dc.identifier.epagee0130877-
dc.identifier.isiWOS:000358151300029-
dc.publisher.placeUnited States-

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