公开(公告)号：US20170209112A1

公开(公告)日：2017-07-27

申请号：US15415805

申请日：2017-01-25

Applicant: Samsung Electronics Co., Ltd

Inventor： Jong-hyon Yi ,  Toshihiro Rifu ,  Ajay Narayanan ,  Alexander Zamyatin ,  Seok-min Han

IPC: A61B6/00 ,  G06T5/00 ,  G06T11/00 ,  A61B5/00 ,  G06T7/60 ,  G06T15/08 ,  G06T7/73 ,  A61B6/03 ,  G06T7/00 ,  G06T7/20

CPC classification number: A61B6/5264 ,  A61B5/0066 ,  A61B5/721 ,  A61B6/032 ,  A61B6/037 ,  A61B6/5205 ,  A61B6/5258 ,  G06T11/005 ,  G06T2211/412

Abstract: Provided are a tomography apparatus and a method for reconstructing a tomography image. The method includes obtaining a plurality of raw data corresponding to a plurality of views by performing a tomography scan on an object and deblurring each of the plurality of raw data based on a point spread function (PSF) that varies according to locations in a field of view (FOV) in a gantry. The method also includes reconstructing a final tomography image in which a motion of the object is corrected from the plurality of deblurred raw data based on a motion vector indicating the motion of the object.

公开(公告)号：US10213179B2

公开(公告)日：2019-02-26

申请号：US15415805

申请日：2017-01-25

Applicant: Samsung Electronics Co., Ltd

Inventor： Jong-hyon Yi ,  Toshihiro Rifu ,  Ajay Narayanan ,  Alexander Zamyatin ,  Seok-min Han

IPC: G06K9/00 ,  A61B6/00 ,  G06T11/00 ,  A61B6/03 ,  A61B5/00

Abstract: Provided are a tomography apparatus and a method for reconstructing a tomography image. The method includes obtaining a plurality of raw data corresponding to a plurality of views by performing a tomography scan on an object and deblurring each of the plurality of raw data based on a point spread function (PSF) that varies according to locations in a field of view (FOV) in a gantry. The method also includes reconstructing a final tomography image in which a motion of the object is corrected from the plurality of deblurred raw data based on a motion vector indicating the motion of the object.

公开(公告)号：US10339675B2

公开(公告)日：2019-07-02

申请号：US15339067

申请日：2016-10-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hwan Choi ,  Seok-min Han ,  Sang-wook Yoo ,  Jong-hyon Yi

IPC: G06T11/00 ,  A61B6/00 ,  G06T7/00

Abstract: A tomography method for generating a computed tomography (CT) image, including generating a first tomography image based on first raw data corresponding to a received X-ray comprising acquired photons; determining second raw data by generating a second tomography image having an increased resolution in comparison with the first tomography image and performing forward projection on the second tomography image; determining third raw data based on a first parameter, the first raw data, and the second raw data; and generating a third tomography image based on the third raw data, wherein the determining of the third raw data may be based on information about a distribution of the acquired photons, the information being included in at least one from among the first raw data and the second raw data.