基于几何对称性的颅骨复原技术  

Technology of Skull Restoration Based on Geometry Symmetry

作　　者：李磊[1] 周明全[1] 耿国华[1] 董建民[1] 

机构地区：[1]西北大学信息科学与技术学院,西安710127

出　　处：《计算机工程》2008年第20期252-254,共3页Computer Engineering

摘　　要：颅骨图像在几何上具有对称性特征,根据转动惯量在几何对称性对象上所具有的良好性质,提出一种改进的计算对称轴的算法,该算法利用计算机语言编程实现。结果表明,利用改进后的算法,找到了颅骨这类CT图像的对称轴,并根据对称性修复了图像,完成了颅骨图像的破洞修复,将轮廓点和边界周长的平均误差分别控制在7.50%和3.05%,得到了较好的结果。A modified computing symmetry axes algorithm is proposed for the geometry symmetry good property of skull image and the moment of inertia on the symmetry objects. The numerical results prove that the algorithm in the paper is used to discover the symmetry axes of the CT images and then the restored images are accomplished after being programmed with the mean errors of 7.50 percent and 3.05 percent on the length and points on the contour respectively.

关 键 词：颅骨复原 转动惯量 对称轴 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]