基于立体摄影技术的三维照相系统获取畸形面部影像的精确性研究
Accuracy of three-dimensional camera system based on stereophotography on photographic acquisition of deformity facial images
作者：高鹏程,赵桢祺,陈雅莉,赵杨,谢理哲,严斌,王林
Author：Pengcheng Gao,Zhenqi Zhao,Yali Chen,Yang Zhao,Lizhe Xie,Bin Yan,Lin Wang
收稿日期：2018-06-13 年卷（期）页码：2019,37(2):174-174-179
期刊名称：华西口腔医学杂志
Journal Name：West China Journal of Stomatology
关键字：三维照相,面部畸形,精确性,
Key words：three-dimensional photography,facial deformity,accuracy,
基金项目：国家自然科学基金(81571005);东南大学-南京医科大学合作研究项目(2242017K3DN02);国家自然科学基金(31771035);南京市科技计划项目(201715017);江苏省口腔疾病研究重点实验室开放课题
中文摘要
目的 探究基于立体摄影技术的三维照相系统获取畸形面部影像的精确性及其影响因素。方法 采用基于立体摄影技术的三维照相系统采集45个面部畸形的蜡制脸模的表面数据,测量19个面部软组织特征线距,以三坐标仪采集测量结果作为标准值,分析三维照相系统获取畸形面部影像的精确性,以及不同畸形形态与面部区域对测量结果精确性的影响。结果 三维照相系统获取的特征线距的测量值与标准值具有统计学差异（PPP>0.05）。不同面部区域的三维照相系统测量误差有统计学差异（PP>0.05）。中间区域与面部两侧区域的测量偏大百分比具有统计学差异（PP>0.05）。结论 对畸形面部影像的分析,基于立体摄影技术的三维照相系统测量正畸临床常规线性项目的精确性受畸形形态与面部区域的影响,但误差在临床可接受范围内。
英文摘要
ObjectiveTo evaluate and analyze the accuracy of three-dimensional camera system acquisition based on stereophotography for the photographic acquisition of images of facial deformities.Methods3D digital models of 45 waxen facial models of patients with facial deformities were obtained via a 3D camera system based on stereophotography. A total of 19 feature lines were measured on each 3D model by using the software. The measurements taken by the coordinate-measuring machine were accepted as standard values. Statistical analysis was performed to evaluate the accuracy of the system and the corresponding factors.ResultsStatistical analysis results showed that the measured values of the characteristic distance obtained by 3D camera system were statistically different from the standard values (PPP>0.05). The facial regions significantly influenced measuring error (PP>0.05). The middle facial regions had significant difference with bilateral facial regions on the percentage of measurement values (PP>0.05).ConclusionThe accuracy of 3D camera system based on stereophotography for the photographic acquisition of facial deformities are influenced by the morphology of the facial deformities and facial regions. Moreover, the measuring error is acceptable in clinical settings.
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