基于图像分割的胎儿超声图像面绘制方法研究  

Study of Surface Rendering Algorithm for Ultrasonic Fetus Image based on Image Segmentation

作　　者：过晓星[1] 吴梓翠[2] 解嵩[1] 侯文广[1] 丁明跃[1,3] 

机构地区：[1]华中科技大学模式识别与人工智能研究所,湖北武汉430074 [2]华中科技大学生命科学与技术学院"图像信息处理与智能控制"教育部重点实验室,湖北武汉430074 [3]华中科技大学生命科学与技术学院,"图像信息处理与智能控制"教育部重点实验室,湖北武汉430074

出　　处：《系统仿真学报》2008年第S1期367-370,374,共5页Journal of System Simulation

基　　金：横向课题

摘　　要：三维表面绘制是图像图形领域中的一个研究热点问题。迄今为止,人们已经提出了许多不同的表面绘制方法,其中基于二维Delaunay三角剖分算法是最常用的一种。它广泛应用于地理测绘、工业建模、医学可视化等领域,然而如何应用于胎儿健康检查尚未见报道。本文基于扇形扫描三维超声图像的成像特点,设计了一种从二维超声图像到胎儿表面三维绘制的方法,包括了从滤波,分割,边缘提取,抽点到点云的三维表面绘制的整个过程。全部程序用VC++结合OpenGL实现基于三角形网格测量数据三维场景和格网显示,图形具有平移、缩放、旋转、选择修改等功能,实验证明对于三维超声胎儿表面绘制取得了相当不错的显示效果。3D surface rendering is one of the hottest topics in image processing and graphics.Nowadays many different surface rendering methods have been proposed.Among them,the surface rendering based on Delaunay Triangulation may be one of the most often used algorithms,which is widely applied in geographic surveying and mapping,industry modeling as well as medical visualization.However,it is not applied fetal health examination.Based on the principle of fan-scanning 3D ultrasound imaging,a method for fetal surface rendering was proposed in this paper.It is composed of noise filtering, segmentation,contour tracking,point cloud extraction and 3D surface rendering.All programs performing the display of the 3-D surface using the Delaunay Triangulation are programmed by VC++ and OpenGL.In addition,the program can realize the functions of pan,zoom,rotation and modification.Experimental results using both the fan- and parallel-scanning 3D ultrasound data demonstrated the feasibility of our method and the display result is quite promising.

关 键 词：胎儿超声图像分割 三维表面绘制 点云 滤波 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]