公开(公告)号：US20150108352A1

公开(公告)日：2015-04-23

申请号：US14398391

申请日：2013-05-03

Applicant: PHASE FOCUS LIMITED

Inventor： Andrew Maiden

IPC: G01N23/20

CPC classification number: G01N23/20 ,  G06T11/003

Abstract: Embodiments of the present invention provide a method of providing image data for constructing an image of at least a region of a target object, comprising the steps of simultaneously recording, at a detector, a plurality of separable diffraction patterns formed by a respective portion of radiation scattered by the target object; and providing the image data via an iterative process responsive to the detected intensity of radiation.

Abstract translation: 本发明的实施例提供一种提供用于构建目标对象的至少一个区域的图像的图像数据的方法，包括以下步骤：在检测器处同时记录由相应的辐射部分形成的多个可分离衍射图案 被目标物体分散; 以及通过响应于检测到的辐射强度的迭代过程来提供图像数据。

公开(公告)号：US20150300964A1

公开(公告)日：2015-10-22

申请号：US14424020

申请日：2013-08-29

Applicant: PHASE FOCUS LIMITED

Inventor： Martin James Humphry ,  Andrew Maiden

IPC: G01N23/20 ,  G06K9/32 ,  H04N5/32

CPC classification number: G01N23/20 ,  G01N23/20058 ,  G06K9/3241 ,  H04N5/32

Abstract: Embodiments of the present invention provide a method of estimating a magnitude of background radiation for each of a plurality of regions of a target object comprising providing an estimate of background radiation detected by a detector, measuring radiation scattered by the target object at the detector for each of a plurality of positions of the object with respect to the incident radiation, calculating, for each of the positions, an estimate of a wavefront at the detector, and determining, for each position, an estimated wavefront comprising a coherent contribution from radiation scattered by the target object and a background contribution, wherein said background contribution is at least partly incoherent with the radiation scattered by the target object. This method is particularly suitable for performing coherent diffractive imaging using ptychography where contribution from the incoherently scattered background is taken into account.

Abstract translation: 本发明的实施例提供了一种估计目标物体的多个区域中的每一个的背景辐射的幅度的方法，包括提供由检测器检测到的背景辐射的估计，测量每个检测器处的​​目标物体在检测器处散射的辐射 对于所述入射辐射的所述物体的多个位置，针对每个所述位置计算所述检测器处的​​波前的估计，并且针对每个位置，确定包括由所述辐射散射的辐射的相干贡献的估计波阵面 目标对象和背景贡献，其中所述背景贡献与目标对象散射的辐射至少部分不相干。 该方法特别适合于使用来自不相干散射背景的贡献被考虑的ptychography进行相干衍射成像。

公开(公告)号：US10466184B2

公开(公告)日：2019-11-05

申请号：US14398391

申请日：2013-05-03

Applicant: PHASE FOCUS LIMITED

Inventor： Andrew Maiden

IPC: G01N23/20 ,  G06T11/00

Abstract: Embodiments of the present invention provide a method of providing image data for constructing an image of at least a region of a target object, comprising the steps of simultaneously recording, at a detector, a plurality of separable diffraction patterns formed by a respective portion of radiation scattered by the target object; and providing the image data via an iterative process responsive to the detected intensity of radiation.

公开(公告)号：US09322791B2

公开(公告)日：2016-04-26

申请号：US14424020

申请日：2013-08-29

Applicant: PHASE FOCUS LIMITED

Inventor： Martin James Humphry ,  Andrew Maiden

IPC: G01J1/42 ,  G01T1/00 ,  G01N23/20 ,  H04N5/32 ,  G06K9/32

CPC classification number: G01N23/20 ,  G01N23/20058 ,  G06K9/3241 ,  H04N5/32

Abstract: Embodiments of the present invention provide a method of estimating a magnitude of background radiation for each of a plurality of regions of a target object comprising providing an estimate of background radiation detected by a detector, measuring radiation scattered by the target object at the detector for each of a plurality of positions of the object with respect to the incident radiation, calculating, for each of the positions, an estimate of a wavefront at the detector, and determining, for each position, an estimated wavefront comprising a coherent contribution from radiation scattered by the target object and a background contribution, wherein said background contribution is at least partly incoherent with the radiation scattered by the target object. This method is particularly suitable for performing coherent diffractive imaging using ptychography where contribution from the incoherently scattered background is taken into account.

Abstract translation: 本发明的实施例提供了一种估计目标物体的多个区域中的每一个的背景辐射的幅度的方法，包括提供由检测器检测到的背景辐射的估计，测量每个检测器处的​​目标物体在检测器处散射的辐射 对于所述入射辐射的所述物体的多个位置，针对每个所述位置计算所述检测器处的​​波前的估计，并且针对每个位置，确定包括由所述辐射散射的辐射的相干贡献的估计波阵面 目标对象和背景贡献，其中所述背景贡献与目标对象散射的辐射至少部分不相干。 该方法特别适合于使用来自不相干散射背景的贡献被考虑的ptychography进行相干衍射成像。