公开(公告)号：US20170243361A1

公开(公告)日：2017-08-24

申请号：US15436808

申请日：2017-02-18

申请人： Roman Schaffert ,  Jian Wang ,  Anja Borsdorf

发明人： Roman Schaffert ,  Jian Wang ,  Anja Borsdorf

IPC分类号： G06T7/37 ,  G06T7/246 ,  G06T7/269 ,  G06T7/207 ,  A61B6/00 ,  G06T7/38 ,  G06T7/00 ,  G06T19/00 ,  G06T11/00 ,  G06T7/32 ,  G06T7/564

CPC分类号： G06T7/37 ,  A61B6/5211 ,  A61B6/5264 ,  G06T7/0016 ,  G06T7/207 ,  G06T7/248 ,  G06T7/269 ,  G06T7/32 ,  G06T7/33 ,  G06T7/38 ,  G06T7/564 ,  G06T11/005 ,  G06T11/006 ,  G06T19/003 ,  G06T2200/04 ,  G06T2200/28 ,  G06T2207/10028 ,  G06T2207/10081 ,  G06T2207/10088 ,  G06T2207/10116 ,  G06T2207/10121 ,  G06T2207/20016 ,  G06T2207/20221 ,  G06T2207/30008

摘要： A method includes, following specification of an initial transformation as a test transformation that is to be optimized, determining a 2D gradient x-ray image and a 3D gradient dataset of the image dataset, carrying out, for each image element of the gradient comparison image, a check for selection as a contour point, and determining an environment best corresponding to a local environment of the contour point and extending around a comparison point in the gradient x-ray image for all contour points in the at least one gradient comparison image. Local 2D displacement information is determined by comparing the contour points with the associated comparison points, and motion parameters of a 3D motion model describing a movement of the target region between the acquisition of the image dataset and the x-ray image are determined from the displacement information and a registration transformation describing the registration.

公开(公告)号：US10062174B2

公开(公告)日：2018-08-28

申请号：US15436808

申请日：2017-02-18

申请人： Roman Schaffert ,  Jian Wang ,  Anja Borsdorf

发明人： Roman Schaffert ,  Jian Wang ,  Anja Borsdorf

IPC分类号： G06K9/00 ,  G06T7/37 ,  G06T7/32 ,  G06T7/246 ,  G06T7/269 ,  G06T7/207 ,  G06T7/564 ,  G06T7/38 ,  G06T7/00 ,  G06T19/00 ,  G06T11/00 ,  A61B6/00

CPC分类号： G06T7/37 ,  A61B6/032 ,  A61B6/487 ,  A61B6/5211 ,  A61B6/5229 ,  A61B6/5235 ,  A61B6/5264 ,  G06T7/0016 ,  G06T7/207 ,  G06T7/248 ,  G06T7/269 ,  G06T7/32 ,  G06T7/33 ,  G06T7/38 ,  G06T7/564 ,  G06T11/005 ,  G06T11/006 ,  G06T19/003 ,  G06T2200/04 ,  G06T2200/28 ,  G06T2207/10028 ,  G06T2207/10081 ,  G06T2207/10088 ,  G06T2207/10116 ,  G06T2207/10121 ,  G06T2207/20016 ,  G06T2207/20221 ,  G06T2207/30008

摘要： A method includes, following specification of an initial transformation as a test transformation that is to be optimized, determining a 2D gradient x-ray image and a 3D gradient dataset of the image dataset, carrying out, for each image element of the gradient comparison image, a check for selection as a contour point, and determining an environment best corresponding to a local environment of the contour point and extending around a comparison point in the gradient x-ray image for all contour points in the at least one gradient comparison image. Local 2D displacement information is determined by comparing the contour points with the associated comparison points, and motion parameters of a 3D motion model describing a movement of the target region between the acquisition of the image dataset and the x-ray image are determined from the displacement information and a registration transformation describing the registration.