Geometric Calibration of Cone-beam CT with a Flat-panel Detector

被引：0
|
作者：
Wu, Dufan [1 ]
Li, Liang [1 ]
Zhang, Li [1 ]
Xing, Yuxiang [1 ]
Chen, Zhiqiang [1 ]
Xiao, Yongshun [1 ]
机构：
[1] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China
来源：
2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC) | 2011年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Here we proposed a method to calibrate several important geometric parameters for cone-beam CT (CBCT) systems. Only three point-like objects and their spatial distances are required for the calibration. Our method is based on the analysis of the ellipse trajectories of the points' projections. Our mathematical expressions are much simpler than similar methods and our method yields better stability. The calibration procedure has been tested on numerical simulations and an actual micro-CT system.
引用
收藏
页码：2952 / 2955
页数：4
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