磁共振成像的3D头面部模型的标准化处理  

Standardization of 3D Head-face Model from Magnetic Resonance Imaging

作　　者：陈晓[1] 周宏[1] 祖媛媛[1] 

机构地区：[1]总后军需装备研究所,北京100082

出　　处：《工程图学学报》2011年第3期57-61,共5页Journal of Engineering Graphics

摘　　要：通过磁共振成像技术获取人体头部的系列二维图像,分别提取其边界坐标数据,并采用傅里叶级数拟合各层的外形轮廓,建立了一种分层描述的3D头部参数化模型。然后根据人类面部主要特征定义了若干特征层,并基于面部特征相匹配的原则,对多个样本进行了平均处理,构造出3D标准头面部模型,能够反映特定人群的综合特点。作为实例,用558个样本计算构造了圆高标准头型,可作为头面部装备设计的依据。A series of 2D images of human head is obtained from magnetic resonance imaging technology.Their boundary coordinates are extracted respectively,and a hierarchical 3D head parameterized model is constructed by fitting contours of all sections with Fourier series.Whereafter,certain feature sections are defined according to main features of human face.Average processing is also taken to several samples based on the principle of facial feature matching.Accordingly,the materialized 3D standard head-face model is constructed,featuring the comprehensive characteristics of specific population.As examples,round-high standard headform is calculated and constructed through 558 samples,as the design basis for head-face equipment.

关 键 词：计算机应用 3D标准头型 参数化模型平均处理 磁共振成像 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术] G307[自动化与计算机技术—计算机科学与技术]