医疗卫生装备2018，Vol.39Issue(5)：29-34,6.DOI:10.7687/j.issn1003-8868.2018.05.029
锥形束Micro-CT几何校正方法的实现
Realization of geometric calibration method of cone-beam Micro-CT
鄢苏鹏 1刘正明1
作者信息
- 1. 解放军1医院医学工程科,兰州730000
- 折叠
摘要
Abstract
Objective To execute geometric calibration and calibration phantom design to realize high-quality cone-beam Micro-CT image reconstruction. Methods The geometrical position parameters of cone-beam Micro-CT system were deduced by the data of the designed phantom projected on the detector by means of linear fitting and geometric relation,so as to realize the geometric calibration of the system.The calculation software and the simulation experiment were achieved by VC++programming language.Results The validity and feasibility of the calibration model and method were proved by the experimental simulation. Conclusion The geometric calibration method can accurately calculate the geometrical position parameter errors of the cone-beam Micro-CT system.It can effectively reduce the artifacts in the reconstructed image and further improve the imaging resolution by adjusting the geometric position parameters.[Chinese Medical Equipment Jour-nal,2018,39(5):29-34]关键词
Micro-CT/锥形束/几何校正/算法实现/几何位置参数误差Key words
Micro-CT/cone-beam/geometric calibration/algorithm realization/geometric location parameter error分类
医药卫生引用本文复制引用
鄢苏鹏,刘正明..锥形束Micro-CT几何校正方法的实现[J].医疗卫生装备,2018,39(5):29-34,6.
