发明名称 |
PROCEDE DE RECONSTRUCTION D'IMAGE POUR SYSTEME DE TOMODENSITOMETRIE DE DOUBLE ENERGIE A HAUTE ENERGIE |
摘要 |
<p>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.</p> |
申请公布号 |
FR2935049(B1) |
申请公布日期 |
2015.08.07 |
申请号 |
FR20090055256 |
申请日期 |
2009.07.28 |
申请人 |
TSINGHUA UNIVERSITY;NUCTECH COMPANY LIMITED |
发明人 |
ZHANG LI;CHEN ZHIQIANG;KANG KEJUN;HU HAIFENG;XING YUXIANG;DUAN XINHUI;LI YUANJING;LIU YINONG;HUANG QINGPING |
分类号 |
G01N23/04;G01N23/087 |
主分类号 |
G01N23/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|