公开(公告)号：US20150212015A1

公开(公告)日：2015-07-30

申请号：US14538150

申请日：2014-11-11

Applicant: INSTITUTE FOR BASIC SCIENCE

Inventor： KI WAN JEON ,  CHI YOUNG AHN ,  SUNG WHAN KIM

IPC: G01N23/04 ,  G06T7/00 ,  G01T1/17

CPC classification number: G01N23/046 ,  G06T11/003 ,  G06T11/005 ,  G06T2211/408

Abstract: An apparatus and method for computed tomography image processing is provided. The apparatus includes: an X-ray detection unit that detects an X-ray beam having passed through a subject and outputs an energy value thereof; a line integral calculation unit that calculates line integral values of attenuation coefficients representing attenuation of the energy value of the X-ray beam having passed through the subject and been detected, based on the energy value; an image processing unit that reconstructs a tomogram based on the line integral values; and an image output unit that outputs the tomogram. The apparatus and method for computed tomography image processing can calculate line integral values of attenuation coefficients constituting an integrand of an X-ray projection function using the mean value theorem for integrals in order to restore an image of a subject from an X-ray beam detected in computed tomography image processing.

Abstract translation: 提供了一种用于计算机断层摄影图像处理的装置和方法。 该装置包括：X射线检测单元，其检测通过被检体的X射线束，并输出其能量值; 线积分计算单元，其基于能量值计算表示已经通过被检体并被检测的X射线束的能量值的衰减的衰减系数的线积分值; 图像处理单元，其基于线积分值重建断层图像; 以及输出断层图像的图像输出单元。 计算机断层图像处理的装置和方法可以使用积分的平均值定理来计算构成X射线投影函数的被积函数的衰减系数的线积分值，以便从检测到的X射线束恢复被摄体的图像 在计算机断层摄影图像处理中。