基于极大圆盘引导的形状插值实现三维表面重建  

3D surface reconstruction using the shape based interpolation guided by maximal discs

作　　者：秦通[1] 孙丰荣[1] 王丽梅[1] 王庆浩[1] 李新彩[1] 

机构地区：[1]山东大学信息科学与工程学院,山东济南250100

出　　处：《山东大学学报（工学版）》2010年第3期1-5,共5页Journal of Shandong University（Engineering Science）

基　　金：山东省优秀中青年科学家奖励基金资助项目(2005BS1006);山东大学自主创新基金资助项目(2009TS106)

摘　　要：针对传统的基于形状插值方法进行插值重建的不足,提出了将基于极大圆盘引导的形状插值方法应用于三维表面重建。插值重建过程中选用具有较好效果的Chamfer算法进行距离变换,然后遍历所得到的距离图像上的所有像素点得极大圆盘集,将圆盘集进行去冗余和投影算法处理后获取最终用来插值的圆盘集,根据优化后的质心公式由圆盘集确定最终的插值方向,最后由插值结束后各点处的距离值完成三维表面重建。仿真实验结果表明,该方法可以准确地实现三维表面重建。According to existing problems of traditional shape based interpolation,a novel method of 3D surface recon-struction was proposed,that innovatively uses the shape based interpolation guided by maximal discs.The method is summarized as follows： maximal discs are determined by traversing all the pixels of distance images that are obtained using the Chamfer algorithm;after redundancy removal and projection,final discs are obtained which are used to determine the ulti-mate interpolation direction with an optimized centroid formula;finally 3D surface reconstruction is achieved according to the interpolated distance values of all pixels.Simulation result showed this method could accurately implement 3D surface reconstruction.

关 键 词：形状插值 极大圆盘 表面重建 仿真 三维超声成像系统 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]