公开(公告)号：US20140334700A1

公开(公告)日：2014-11-13

申请号：US14337707

申请日：2014-07-22

Applicant: Carestream Health, Inc.

Inventor： Dong Yang ,  Nathan J. Packard ,  Robert A. Senn

IPC: A61B6/00 ,  G06T7/00 ,  G06T5/50 ,  A61B6/03

CPC classification number: A61B6/5282 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/583 ,  G06T5/50 ,  G06T7/0016 ,  G06T11/005 ,  G06T2207/10116 ,  G06T2207/20182

Abstract: Embodiments of methods and/or apparatus for 3-D volume image reconstruction of a subject, executed at least in part on a computer for use with a digital radiographic apparatus, can obtain image data for 2-D projection images over a range of scan angles. For each of the plurality of projection images, an enhanced projection image can be generated. In one embodiment, a first scatter intensity distribution through the plurality of projection images can be modulated based on a first scaling function and a SPR to generate a second scatter intensity distribution through the plurality of projection images, which can be combined with the original plurality of projection images.

Abstract translation: 至少部分地在与数字放射线照相设备一起使用的计算机上执行的对象的3-D体积图像重建的方法和/或装置的实施例可以在扫描角度范围内获得用于2-D投影图像的图像数据 。 对于多个投影图像中的每一个，可以生成增强的投影图像。 在一个实施例中，可以基于第一缩放函数和SPR来调制通过多个投影图像的第一散射强度分布，以通过多个投影图像生成第二散射强度分布，所述第二散射强度分布可以与原始多个 投影图像。

公开(公告)号：US20150178917A1

公开(公告)日：2015-06-25

申请号：US14576264

申请日：2014-12-19

Applicant: CARESTREAM HEALTH, INC.

Inventor： Dong Yang ,  Lawrence A. Ray ,  Andre Souza ,  Alexandre X. Falcao

IPC: G06T7/00 ,  G06T5/00 ,  G06T17/00 ,  A61B6/03 ,  A61B6/00

CPC classification number: G06T17/00 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/5258 ,  G06T5/005 ,  G06T11/005 ,  G06T2207/10081 ,  G06T2207/30052

Abstract: Method and/or apparatus embodiments can process volume image data of a subject. An exemplary method includes obtaining a first group of two-dimensional radiographic images of the subject, wherein each of the images is obtained with a detector and a radiation source at a different scan angle. The method arranges image data from the first group of images in an image stack so that corresponding pixel data from the detector is in register for each of the images in the image stack. Pixels that represent metal objects are segmented from the image stack and data replaced for at least some of the segmented pixels to generate a second group of modified two-dimensional radiographic images. The second group of images is combined with the first group to generate a three-dimensional volume image according to the combined images and an image slice from the three-dimensional volume image is displayed.

Abstract translation: 方法和/或装置实施例可以处理对象的体积图像数据。 一种示例性方法包括获得所述对象的第二组二维放射照相图像，其中每个图像是用不同扫描角的检测器和辐射源获得的。 该方法将来自图像堆叠中的第一组图像的图像数据排列成使得来自检测器的相应像素数据被记录在图像堆叠中的每个图像中。 代表金属物体的像素从图像堆栈中被分割，并为至少一些分段像素替换数据，以产生第二组修改的二维放射照相图像。 第二组图像与第一组组合以根据组合的图像生成三维体积图像，并且显示来自三维体积图像的图像切片。

公开(公告)号：US09265475B2

公开(公告)日：2016-02-23

申请号：US14337707

申请日：2014-07-22

Applicant: Carestream Health, Inc.

Inventor： Dong Yang ,  Nathan J. Packard ,  Robert A. Senn

IPC: G06K9/00 ,  A61B6/00 ,  G06T11/00 ,  A61B6/03 ,  G06T5/50 ,  G06T7/00

CPC classification number: A61B6/5282 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/583 ,  G06T5/50 ,  G06T7/0016 ,  G06T11/005 ,  G06T2207/10116 ,  G06T2207/20182

Abstract: Embodiments of methods and/or apparatus for 3-D volume image reconstruction of a subject, executed at least in part on a computer for use with a digital radiographic apparatus, can obtain image data for 2-D projection images over a range of scan angles. For each of the plurality of projection images, an enhanced projection image can be generated. In one embodiment, a first scatter intensity distribution through the plurality of projection images can be modulated based on a first scaling function and a SPR to generate a second scatter intensity distribution through the plurality of projection images, which can be combined with the original plurality of projection images.

Abstract translation: 至少部分地在与数字放射线照相设备一起使用的计算机上执行的对象的3-D体积图像重建的方法和/或装置的实施例可以在扫描角度范围内获得用于2-D投影图像的图像数据 。 对于多个投影图像中的每一个，可以生成增强的投影图像。 在一个实施例中，可以基于第一缩放函数和SPR来调制通过多个投影图像的第一散射强度分布，以通过多个投影图像生成第二散射强度分布，所述第二散射强度分布可以与原始多个 投影图像。