基于CT图像的骨骼缺损修复方法研究  

Research on Bone Defect Repair Based on CT Image

作　　者：刘畅 周竞宇 LIU Chang;ZHOU Jing-yu(School of Computer Science,Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]西南石油大学计算机科学学院

出　　处：《电脑知识与技术》2019年第11期231-233,共3页Computer Knowledge and Technology

摘　　要：在3D打印领域中,针对找到受损骨骼待修补部分的问题上,提出一种利用模板进行配准找出需要修补部分的方法。这种模板可以是相似度高的模型,也可以是病人的镜像骨。在完成方法过程中,利用到了最小盒算法和ICP配准,前者是对模型的粗配准,后者是对模型的精配准;在最后进行剔除错误部分和平滑,生成打印模型。实验表明,该方法能完整精确打印出待修补处三维模型,与缺损模型平滑连接。In the field of 3D printing,aiming at finding the damaged bone to be repaired,a method of using template registration to find the repaired part is proposed.This template can be a highly similar model or a mirror image of the patient's bone.In the process of com⁃pleting the method,the Minimum Bounding Box and ICP registration are used,The former is the rough registration of the model,and the latter is the fine registration of the model.In the end,error parts and smoothing are eliminated to generate the print model.Experiments show that this method can print the 3d model to be repaired completely and accurately,and connect it with the defect smoothly.

关 键 词：3D打印 骨骼修复 三维重建 刚性配准 点云 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]