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

doi:10.7518/hxkq.2019.02.009

华西口腔医学杂志 ›› 2019, Vol. 37 ›› Issue (2): 174-179.doi: 10.7518/hxkq.2019.02.009

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

高鹏程¹,赵桢祺^2,³,陈雅莉⁴,赵杨⁵,谢理哲^2,³(),严斌^2,³,王林^2,³

1.东南大学附属中大医院口腔科
2.南京医科大学口腔疾病研究江苏省重点实验室
3.南京医科大学附属口腔医院正畸科,南京 210029
4.淮安市中医院口腔科,淮安 223001
5.南京医科大学公共卫生学院,南京 211166

收稿日期:2018-06-13 修回日期:2018-10-09 出版日期:2019-04-01 发布日期:2019-04-28
通讯作者: 谢理哲 E-mail:6119921@qq.com
作者简介:高鹏程,住院医师,硕士,E-mail：g-pc@163.com
基金资助:
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

Accuracy of three-dimensional camera system based on stereophotography on photographic acquisition of deformity facial images

Pengcheng Gao¹,Zhenqi Zhao^2,³,Yali Chen⁴,Yang Zhao⁵,Lizhe Xie^2,³(),Bin Yan^2,³,Lin Wang^2,³

1.Dept. of Stomatology, Zhongda Hospital Southeast University, Nanjing 210029, China
2.Jiangsun Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China
3.Dept. of Orthodontics, Affiliated of Stomatology, Nanjing Medical University, Nanjing 210029, China
4.Dept. of Stomatology, Huai’an Hospital of Traditional Chinese Medicine, Huai’an 223001, China
5.School of Public Health, Nanjing Medical University, Nanjing 211166, China

Received:2018-06-13 Revised:2018-10-09 Online:2019-04-01 Published:2019-04-28
Contact: Lizhe Xie E-mail:6119921@qq.com
Supported by:
The National Natural Science Foundation of China(81571005);Joint Funds of Nanjing Medical University and Southeast University(2242017K3DN02);The National Natural Science Foundation of China(31771035);Nanjing Science and Technology Planning Project(201715017);Open Project of Jiangsu Key Laboratory of Oral Diseases

摘要/Abstract

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（P<0.001）。凸起畸形对三维照相系统的测量误差有显著性影响（P<0.05）,裂隙畸形对三维照相系统的测量误差无显著性影响（P>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（P<0.05）。畸形形态对三维照相系统测量偏大百分比无显著性影响（P>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（P<0.05）,左侧区域与右侧区域的测量偏大百分比无统计学差异（P>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。

关键词: 三维照相, 面部畸形, 精确性

Abstract:

Objective To evaluate and analyze the accuracy of three-dimensional camera system acquisition based on stereophotography for the photographic acquisition of images of facial deformities. Methods 3D 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. Results Statistical analysis results showed that the measured values of the characteristic distance obtained by 3D camera system were statistically different from the standard values (P<0.001). Convex deformities had significant influence on the measuring error of 3D camera system (P<0.05), while cleft deformities had no significant influence on the measuring error (P>0.05). The facial regions significantly influenced measuring error (P<0.05). The deformities had no significant influence on the percentage of measurement values (P>0.05). The middle facial regions had significant difference with bilateral facial regions on the percentage of measurement values (P<0.05), while the left and right facial regions had no significant difference (P>0.05). Conclusion The 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.

Key words: three-dimensional photography, facial deformity, accuracy

中图分类号:

R783.5

高鹏程,赵桢祺,陈雅莉,赵杨,谢理哲,严斌,王林. 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[J]. 华西口腔医学杂志, 2019, 37(2): 174-179.

Pengcheng Gao,Zhenqi Zhao,Yali Chen,Yang Zhao,Lizhe Xie,Bin Yan,Lin Wang. Accuracy of three-dimensional camera system based on stereophotography on photographic acquisition of deformity facial images[J]. West China Journal of Stomatology, 2019, 37(2): 174-179.

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标志点	定义
额点（G）	额部最突出点
鼻根点（Ns）	鼻额缝表面所覆盖之软组织最
	凹点
鼻顶点（Prn）	鼻部软组织之最突点
鼻下点（Sn）	鼻小柱与上唇之交点
上唇缘点（UL）	上唇黏膜与皮肤之连接点
下唇缘点（LL ）	下唇黏膜与皮肤之连接点
软组织B点（B）	下牙槽座点表面所覆盖之软组
	织最凹点
颏前点（Pos）	颏部软组织的最前点
左、右内眦点（EnL,EnR）	左、右眼上下眼睑的内遇合点
左、右外眦点（ExL,ExR）	左、右眼上下眼睑的外遇合点
左、右颧点（ZyL,ZyR）	左、右颧弓向外侧最突出处表
	面所覆盖之软组织最突点
左、右鼻翼基底点（AlL,AlR）	鼻与上唇相连的基底部分的最
	左、最右点
左、右口角点（ChL,ChR）	上下唇黏膜缘在外侧端相接的
	最左、最右点

特征线距	线段描述
EnR-EnL	内眦间距离
ExR-ExL	外眦间距离
ExL-EnL	左眼裂宽
ExR-EnR	右眼裂宽
AlR-AlL	鼻翼基底宽
ChR-ChL	口角宽
ZyR-ZyL	面中部宽
Prn-Sn	鼻顶点至鼻下点距离
Sn-UL	鼻下点至上唇缘点距离
Prn-UL	鼻顶点至上唇缘点距离
LL-B	下唇缘点至软组织B点距离
B-Pos	软组织B点至颏前点距离
LL-Pos	下唇缘点至颏前点距离
G-Ns	额点至鼻根点距离
Ns-Prn	鼻根点至鼻顶点距离
G-Prn	额点至鼻顶点距离
G-Sn	额点至鼻下点距离
Sn-Pos	鼻下点至颏前点距离
G-Pos	额点至颏前点距离

分区	特征线距的分布
区域1~5	无
区域6	ZyR-ZyL
区域7	ExR-ExL、ExL-EnL、ZyR-ZyL
区域8	EnR-EnL、ExR-ExL、AlR-AlL、ZyR-ZyL、
	G-Ns、Ns-Prn、G-Prn、G-Sn、G-Pos
区域9	ExR-ExL、ExR-EnR、ZyR-ZyL
区域10	ZyR-ZyL
区域11	无
区域12	ChR-ChL
区域13	ChR-ChL、Prn-Sn、Sn-UL、Prn-UL、LL-B、
	B-Pos、LL-Pos、Sn-Pos、G-Pos
区域14	ChR-ChL
区域15	无

面部区域	区域6	区域7	区域8	区域9	区域10	区域12	区域13
区域6
区域7	0.813
区域8	0.000*	0.000*
区域9	0.961	0.999	0.000*
区域10	1.000	0.813	0.000*	0.961
区域12	0.332	0.930	0.045*	0.741	0.332
区域13	0.000*	0.000*	0.000*	0.000*	0.000*	0.000*
区域14	0.332	0.930	0.045*	0.741	0.332	1.000	0.000*

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

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[2]	蒋程程宋庆高何苇陈尚洪滔. iWitness摄影测量系统在颌面部应用的可信度研究[J]. 华西口腔医学杂志, 2015, 33(3): 296-300.
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