公开(公告)号：US20140169524A1

公开(公告)日：2014-06-19

申请号：US13719815

申请日：2012-12-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jonathan Immanuel Sperl ,  Dirk Wim Jos Beque

IPC: G06T5/00 ,  G01N23/04

CPC classification number: G06T5/001 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

Abstract: A phase retrieval method for differential phase contrast imaging includes receiving data corresponding to a differential phase image generated from a measured signal. The measured signal corresponds to an X-ray signal detected by a detector after passing through a subject located with a grating arrangement between an X-ray source and the detector. The method further includes generating a phase image corresponding to the integration of the differential phase image. Generating the phase image includes performing an iterative total variation regularized integration in the Fourier domain.

Abstract translation: 用于差分相位对比成像的相位检索方法包括接收与从测量信号生成的差分相位图像相对应的数据。 所测量的信号对应于在通过位于X射线源和检测器之间的光栅布置的被摄物体之后由检测器检测的X射线信号。 该方法还包括产生与差分相位图像的积分相对应的相位图像。 生成相位图像包括在傅里叶域中执行迭代总变化正则化积分。

公开(公告)号：US08989347B2

公开(公告)日：2015-03-24

申请号：US13719815

申请日：2012-12-19

Applicant: General Electric Company

Inventor： Jonathan Immanuel Sperl ,  Dirk Wim Jos Beque

IPC: G06T7/00 ,  G01N23/04 ,  G06T5/00

CPC classification number: G06T5/001 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

Abstract: A phase retrieval method for differential phase contrast imaging includes receiving data corresponding to a differential phase image generated from a measured signal. The measured signal corresponds to an X-ray signal detected by a detector after passing through a subject located with a grating arrangement between an X-ray source and the detector. The method further includes generating a phase image corresponding to the integration of the differential phase image. Generating the phase image includes performing an iterative total variation regularized integration in the Fourier domain.

Abstract translation: 用于差分相位对比成像的相位检索方法包括接收与从测量信号生成的差分相位图像相对应的数据。 所测量的信号对应于在通过位于X射线源和检测器之间的光栅布置的被摄物体之后由检测器检测的X射线信号。 该方法还包括产生与差分相位图像的积分相对应的相位图像。 生成相位图像包括在傅里叶域中执行迭代总变化正则化积分。