摘要
论文讨论了在ECT系统中利用二维断层图象进行三维表面重建的方法。首先对二维断层图象序列进行抽取轮廓、细线化、轮廓线追踪处理;然后对两相邻断层图象进行轮廓匹配;在两层已知(重建)图象轮廓中间插入若干个插值图象时采用同经度方向位置校准轮廓加权平均方法获得插值轮廓;最后在相邻的已知轮廓或插值轮廓采用最短对角线法进行三角片表面重建。仿真结果表明,利用上述方法可以较好地重建物体的三维表面。
This paper investigates the method of reconstructing3-D surface from a set of2-D cross sections for ECT.Firstly,the pre-processing includes extracting,thinning,and trailing the contours.Secondly,contour correspondence is oper-ated for each contours on two adjacent cross sections,an algorithm based on equal-longitude position adjusted profile weighted averaging to generate matching outline is adopted.Finally,the method of short-diagonal is used to reconstruct-ing triangle surface between two adjacent contours.The simulate experiment result shows the method can reconstruct3-D surface of object efficiently.
出处
《计算机工程与应用》
CSCD
北大核心
2003年第35期86-88,共3页
Computer Engineering and Applications
基金
广西自然科学基金(编号:桂科自0135059)资助项目
关键词
ECT
图象重建
三维表面重建
轮廓匹配
插值轮廓
ECT,Image reconstruction,3-D surface reconstruction,Contour correspondence,Interpolation outline
