CAJ | 학술논문

对缺损颅骨图像进行精确的修补是颅面形态学研究过程中一个必须解决的问题.针对颅骨图像轮廓清晰的特点,提出了基于轮廓对称轴的修复方法.该方法采用了优化搜索的策略计算出对称轴,分析了基于对称轴直接填充修复和拟合修复的优劣,并采用最小二乘法拟合修复颅骨破洞.实验证明,利用该方法能精确地找到颅骨CT图像的对称轴,根据几何对称性拟合修复缺损CT图像得到了令人满意的结果.
대결손로골도상진행정학적수보시로면형태학연구과정중일개필수해결적문제.침대로골도상륜곽청석적특점,제출료기우륜곽대칭축적수복방법.해방법채용료우화수색적책략계산출대칭축,분석료기우대칭축직접전충수복화의합수복적우렬,병채용최소이승법의합수복로골파동.실험증명,이용해방법능정학지조도로골CT도상적대칭축,근거궤하대칭성의합수복결손CT도상득도료령인만의적결과.
The restorations of skull images are in great need of being solved in the craniofacial morphology research.Because there are clear contours in CT image,an approach of repairing is presented based on the geometry symmetry of the images.The method calculates the symmetry axis through optimal search strategy,analyzes the pros and cons of repair by filling directly and fitting,and repairs the hole in the skull by using least squares fitting.The numerical results prove that the algorithm in the paper discovers the symmetry axes of the CT images accurately,the restored image is received perfectly.