电容层析成像系统三维图像重建及其在两相流体积测量中的应用研究  

Research on 3-D Image Reconstruction of Electrical Capacitance Tomography and Its Application to Discrete Phase Volume Measurement of Two -phase Flow

作　　者：赵进创[1] 陆建波[1] 傅文利[1] 李陶深[1] 梁家荣[1] 

机构地区：[1]广西大学计算机与信息工程学院,南宁530004

出　　处：《仪器仪表学报》2005年第2期202-205,共4页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金 (60 0 64 0 0 2 );广西自然科学基金 (桂科自 0 13 5 0 5 9)资助项目

摘　　要：探讨了电容层析成像系统中利用二维断层图像进行三维表面重建 ,并由三维图像求取两相流中离散相体积和观察其空间位置的方法。首先对二维断层图像序列进行轮廓抽取和细线化 ,然后进行轮廓匹配和轮廓插值并进行表面重建 ;最后利用三维图像求取两相流中离散相体积。初步的仿真结果表明 ,使用的三维重建算法简单 ,重建精度高 ,成像速率快 ,可以方便地观察离散相空间位置和计算出离散相体积。A method of reconstructing three-dimensional (3-D) image from a set of two-dimensional (2-D) cross sections for electrical capacitance tomography (ECT) is investigated, and the method of discrete phase volume measurement of two phase flow based on 3-D image is introduced too. Firstly, the contour extracting, thinning, and tracking are operated from a set of 2-D images; secondly, the process to find matching points of two adjacent contours, to interpolate contours, and to reconstruct a 3-D image. Finally, the volume of the discrete phase is easily to calculate. The preliminary experimental results demonstrate the simpleness and effectiveness of the methods.

关 键 词：电容层析成像系统 两相流 三维图像重建 体积测量 应用 三维表面重建 三维重建算法 空间位置 相体积 断层图像 轮廓抽取 图像序列 轮廓匹配 仿真结果 离散 细线化 二维 求取 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] O359[自动化与计算机技术—控制科学与工程]