Li Zhang,Zhiqiang Chen,Kejun Kang,Haifeng Hu,Yuxiang Xing,Xinhui Duan,Yuanjing Li,Yinong Liu,Qingping Huang
申请号：
US12509977
公开号：
US08306180B2
申请日:
2009.07.27
申请国别(地区):
US
年份:
2012
代理人:
摘要：
Disclosed is an image reconstruction method in a high-energy dual-energy CT system. The method comprises steps of scanning an objection with high-energy dual-energy rays to obtain high-energy dual-energy projection values, calculating projection values of base material coefficients corresponding to the dual-energy projection values on the basis of a pre-created lookup table or by analytically solving a set of equations, and obtaining an image of base material coefficient distribution based on the projection values of base material coefficients. The method provides a solution for reconstruction with high-energy dual energy CT technology and thus a more effective approach for substance identification and contraband inspection, thereby bringing a significant improvement on accuracy and efficiency in security inspection.
