Three-Dimensional Accuracy of Facial Scan for Facial Deformities in Clinics: A New Evaluation Method for Facial Scanner Accuracy.
Three-Dimensional Accuracy of Facial Scan for Facial Deformities in Clinics: A New Evaluation Method for Facial Scanner Accuracy.
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DOI：
10.1371/journal.pone.0169402
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发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Wang Y
中科院分区：
文献类型：
--
作者：
Zhao YJ;Xiong YX;Wang Y
在这项研究中，评估了光学面部扫描仪的实用准确性(PA)的面部畸形患者在口腔临床。这项研究包括10名口腔临床上患有各种面部畸形的患者。每个患者通过高精度的工业“线激光”扫描仪(FARO)获取一个三维(3D)人脸模型作为参考模型，并分别通过“立体摄影”(3dMD)和“结构光”面部扫描仪(FaceScan)获得两个测试模型。采用基于迭代最近点(ICP)算法的配准方法将测试模型与参考模型进行配准，并利用逆向工程软件Geomagic Studio计算出的新的测量指标--3D误差来评估每个面部扫描仪的3D全局和局部(面部的上、中、下三个部分)的PA。立体摄影和结构光面部扫描仪测量面部畸形的三维精度分别为0.58±0.11 mm和0.57±0.07 mm。不同面部分区的3D精度不一致，中间面部表现最好。虽然两台面部扫描仪的PA均低于其标称精度(NA)，但均满足口腔临床使用要求。
In this study, the practical accuracy (PA) of optical facial scanners for facial deformity patients in oral clinic was evaluated. Ten patients with a variety of facial deformities from oral clinical were included in the study. For each patient, a three-dimensional (3D) face model was acquired, via a high-accuracy industrial “line-laser” scanner (Faro), as the reference model and two test models were obtained, via a “stereophotography” (3dMD) and a “structured light” facial scanner (FaceScan) separately. Registration based on the iterative closest point (ICP) algorithm was executed to overlap the test models to reference models, and “3D error” as a new measurement indicator calculated by reverse engineering software (Geomagic Studio) was used to evaluate the 3D global and partial (upper, middle, and lower parts of face) PA of each facial scanner. The respective 3D accuracy of stereophotography and structured light facial scanners obtained for facial deformities was 0.58±0.11 mm and 0.57±0.07 mm. The 3D accuracy of different facial partitions was inconsistent; the middle face had the best performance. Although the PA of two facial scanners was lower than their nominal accuracy (NA), they all met the requirement for oral clinic use.
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影响因子：
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作者：
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通讯作者：
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影响因子：
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DOI：
10.1007/s00056-007-0652-y
发表时间：
2007-11-01
影响因子：
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作者：
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通讯作者：
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