中文版 | English
Title

基于拟蒙特卡罗和强制探测的校正CT散射信号的方法

Author
First Inventor
林桂元
Original applicant
清华大学 ; 南方科技大学
First applicant
清华大学
Address of First applicant
100084 北京市海淀区清华园
Current applicant
清华大学 ; 南方科技大学
Address of Current applicant
100084 北京市海淀区清华园 (北京,北京,海淀区)
First Current Applicant
清华大学
Address of First Current Applicant
100084 北京市海淀区清华园 (北京,北京,海淀区)
Application Number
CN202111107623.5
Application Date
2021-09-22
Open (Notice) Number
CN113804709B
Date Available
2022-08-12
Publication Years
2022-08-12
Status of Patent
授权
Legal Date
2022-08-12
Subtype
授权发明
SUSTech Authorship
Others
Abstract
本发明实施例公开了一种基于拟蒙特卡罗和强制探测的校正CT散射信号的方法,包括:模拟光子从X射线源S通过被测物体M到达探测器D的散射信号;将每个探测器像素检测到的信号减去模拟得到的散射信号与预设系数的乘积,根据差值确定穿过被测模体M后的X射线信号。通过计算光子理论上发生散射的概率,把QMC方法的优势和强制固定探测(FFD)技术结合起来,能够准确地得到探测器探测到的光子的散射信号,从而实现对探测器探测到的X射线的散射信号的校正。
Other Abstract
本发明实施例公开了一种基于拟蒙特卡罗和强制探测的校正CT散射信号的方法,包括:模拟光子从X射线源S通过被测物体M到达探测器D的散射信号;将每个探测器像素检测到的信号减去模拟得到的散射信号与预设系数的乘积,根据差值确定穿过被测模体M后的X射线信号。通过计算光子理论上发生散射的概率,把QMC方法的优势和强制固定探测(FFD)技术结合起来,能够准确地得到探测器探测到的光子的散射信号,从而实现对探测器探测到的X射线的散射信号的校正。
IPC Classification Number
G01N23/046
INPADOC Legal Status
(ENTRY INTO FORCE OF REQUEST FOR SUBSTANTIVE EXAMINATION)[2022-01-04][CN]
INPADOC Patent Family Count
1
Extended Patent Family Count
1
Patent Agent
石辉
Agency
北京汇智胜知识产权代理事务所(普通合伙)
URL[Source Record]
Data Source
PatSnap
Document TypePatent
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/376468
DepartmentNational Center for Applied Mathematics, SUSTech Shenzhen
Recommended Citation
GB/T 7714
林桂元,王小群,邓世沃. 基于拟蒙特卡罗和强制探测的校正CT散射信号的方法[P]. 2022-08-12.
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