A novel method for 3D face symmetry reference plane based on weighted Procrustes analysis algorithm.
Background: We aimed to establish a novel method, using the weighted Procrustes analysis (WPA) algorithm, which assigns weight to facial anatomical landmarks, to construct a three-dimensional facial symmetry reference plane (SRP) for mandibular deviation patients. Methods: Three-dimensional facial S...
| Publicado en: | BMC Oral Health Vol. 20; no. 1 |
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| Autores principales: | , , , , , , , |
| Formato: | equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
BioMed Central
11/11/2020
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=146950053&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 146950053 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14726831 1CIC jtl: BMC Oral Health issn: 14726831 maglogo: N pubinfo: dt: 11/11/2020 vid: 20 iid: 1 pid: 24147 pub: BioMed Central artinfo: ui: 146950053 146950053 146950053 10.1186/s12903-020-01311-3 146950053 ppct: 1 formats: tig: atl: A novel method for 3D face symmetry reference plane based on weighted Procrustes analysis algorithm. aug: au: Zhu, Yujia Zheng, Shengwen Yang, Guosheng Fu, Xiangling Xiao, Ning Wen, Aonan Wang, Yong Zhao, Yijiao affil: Center of Digital Dentistry, Peking University School and Hospital of Stomatology, No.22 Zhongguancun Avenue South, Haidian District, 100081, Beijing, China sug: subj: Algorithms Methods Mandible Abnormalities Imaging, Three-Dimensional Human Descriptive Statistics Data Analysis Software One-Way Analysis of Variance Paired T-Tests Post Hoc Analysis ab: Background: We aimed to establish a novel method, using the weighted Procrustes analysis (WPA) algorithm, which assigns weight to facial anatomical landmarks, to construct a three-dimensional facial symmetry reference plane (SRP) for mandibular deviation patients. Methods: Three-dimensional facial SRPs were independently extracted from 15 mandibular deviation patients using both our WPA algorithm and the standard PA algorithm. A reference plane was defined to serve as the ground truth. To determine whether the WPA SRP or the PA SRP was closer to the ground truth, we measured the position error of mirrored landmarks, the facial asymmetry index (FAI) error, and the angle error for the global face and each facial third partition. Results: The average angle error between the WPA SRP and the ground truth was 1.66 ± 0.81°, which was smaller than that between the PA SRP and the ground truth. The position error of the mirrored landmarks constructed using the WPA algorithm in the global face (3.64 ± 1.53 mm) and each facial partition was lower than that constructed using the PA algorithm. The average FAI error of the WPA SRP was − 7.77 ± 17.02 mm, which was smaller than that of the PA SRP. Conclusions: This novel automatic algorithm, based on weighted anatomic landmarks, can provide a more adaptable SRP than the standard PA algorithm when applied to severe mandibular deviation patients and can better simulate the diagnosis strategies of clinical experts. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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