基于体可视化的计算机辅助轮廓测量系统设计  

DESIGN OF COMPUTER-AIDED PROFILE MEASUREMENT SYSTEM BASED ON VOLUME VISUALISATION

作　　者：吴仲明[1] 田联房[1] 李彬[1] 韩苏宁[2] 乔国庆[3] 

机构地区：[1]华南理工大学自动化科学与工程学院,广东广州510640 [2]广州军区广州总医院眼科,广东广州510010 [3]广州军区广州总医院放射科,广东广州510010

出　　处：《计算机应用与软件》2016年第4期146-150,共5页Computer Applications and Software

基　　金：广东省自然科学基金项目(S2013010012015);广东省科技计划项目(2012A030400024);军队总后重点课题(BGZ14C001)

摘　　要：为收集整理我国不同人群的五官头颅特征数据,开发一个计算机辅助轮廓测量系统。系统首先对图像进行预处理,利用面绘制技术重建三维头颅模型;然后在模型表面选取特征点作平面求交获取轮廓剖面,通过几何变换方法实现剖面由三维空间到二维空间的映射;最后采用边界跟踪技术提取外缘轮廓坐标集,并根据应用需求对轮廓参数进行标记与测量。实验结果表明:该系统能有效地实现三维头颅模型的轮廓参数测量,并直观、精确地反映五官头颅实际的形态特征。In order to collect and sort out the data of five facial organs and heads characteristics of different population in China,we developed a computer-aided profile measurement system. The system first reconstructs 3D head model using surface rendering technology after the pre-treatment on images; then chooses the characteristic points on the model surface to make the plane for calculating intersection points to get the profile section,and implements the section mapping from three-dimensional space to two-dimensional space through geometrical transformation method. Finally,the system extracts outer profile coordinates set with boundary tracking technology,and marks and measures profile parameters of the model according to application requirements. Experimental results showed that the system could effectively realise profile parameters measurement of three-dimensional head model,and intuitively and accurately reflected actual morphological characteristics of five facial organs and head.

关 键 词：轮廓测量 体可视化 三维重建 几何变换 边界跟踪 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]