公开(公告)号：US10098602B2

公开(公告)日：2018-10-16

申请号：US14550164

申请日：2014-11-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhgoon Lee ,  Toshihiro Rifu

IPC: A61B6/00 ,  A61B6/03 ,  G06T7/00 ,  G06T7/62

Abstract: An apparatus includes an image analysis unit arranged to extract, from the medical image, brightness intensities of a first body lumen region of the medical image and brightness intensities of a second body lumen region of the medical image; and a measuring unit arranged to calculate a first body lumen value and a second body lumen value, each of the first body lumen value and a second body lumen value being calculated as a predetermined linear combination of the brightness intensities of the corresponding first body lumen region and second body lumen region, and to compare the first body lumen value with the second body lumen value.

公开(公告)号：US20170258432A1

公开(公告)日：2017-09-14

申请号：US15435232

申请日：2017-02-16

Applicant: Samsung Electronics Co., Ltd

Inventor： Ji-young Choi ,  Toshihiro Rifu ,  Kyoung-yong Lee ,  Duhgoon Lee

IPC: A61B6/00 ,  A61B6/03

CPC classification number: A61B6/5205 ,  A61B6/02 ,  A61B6/027 ,  A61B6/032 ,  A61B6/037 ,  A61B6/463 ,  A61B6/503 ,  A61B6/5264 ,  A61B6/5288 ,  A61B6/563 ,  G06T11/006 ,  G06T2211/412

Abstract: A tomography apparatus includes a data obtainer and an image processor. The data obtainer performs a tomography scan on a moving object and obtains raw data of the object The image processor reconstructs a first tomography image of the object for a first slice section in a first phase from the raw data and reconstructs a second tomography image in a second phase, which is different from the first phase, for the first slice section of the object by using the raw data. The image processor also generates motion information indicating a three-dimensional (3D) motion of the object. The second phase is a phase beyond a phase range of the raw data.

公开(公告)号：US10238355B2

公开(公告)日：2019-03-26

申请号：US15435232

申请日：2017-02-16

Applicant: Samsung Electronics Co., Ltd

Inventor： Ji-young Choi ,  Toshihiro Rifu ,  Kyoung-yong Lee ,  Duhgoon Lee

IPC: A61B6/00 ,  A61B6/03 ,  G06T11/00 ,  A61B6/02

Abstract: A tomography apparatus includes a data obtainer and an image processor. The data obtainer performs a tomography scan on a moving object and obtains raw data of the object The image processor reconstructs a first tomography image of the object for a first slice section in a first phase from the raw data and reconstructs a second tomography image in a second phase, which is different from the first phase, for the first slice section of the object by using the raw data. The image processor also generates motion information indicating a three-dimensional (3D) motion of the object. The second phase is a phase beyond a phase range of the raw data.

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：US10105118B2

公开(公告)日：2018-10-23

申请号：US14851098

申请日：2015-09-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ji-young Jung ,  Toshihiro Rifu ,  Gun-woo Lee ,  Jong-hyon Yi ,  Chang-lae Lee

IPC: A61B6/03 ,  A61B6/00 ,  G06F3/0484 ,  A61B6/02

Abstract: An apparatus and a method of processing a medical image are provided. The apparatus is configured to generate a cross-sectional image of an object by transmitting X-rays through a region of the object, and includes an X-ray generator configured to generate the X-rays. The apparatus further includes a controller configured to determine sub-regions included in the region, based on positions of body parts included in the region, determine image qualities of the sub-regions based on types of the body parts included in the sub-regions, control doses of the X-rays based on the image qualities, and control the X-ray generator to transmit the controlled X-rays to the region.

公开(公告)号：US09959631B2

公开(公告)日：2018-05-01

申请号：US14554799

申请日：2014-11-26

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Beom Ra ,  Seungeon Kim ,  Kyoung-yong Lee ,  Toshihiro Rifu ,  Jonghyon Yi ,  Iljun Ahn ,  Yongjin Chang ,  Byung-sun Choi

IPC: G06K9/00 ,  G06T7/20 ,  A61B6/03 ,  A61B6/00 ,  G06T11/00

CPC classification number: G06T7/246 ,  A61B6/032 ,  A61B6/037 ,  A61B6/5205 ,  A61B6/5264 ,  G06T7/248 ,  G06T11/006 ,  G06T2207/10081 ,  G06T2211/412 ,  G06T2211/421

Abstract: A tomography apparatus includes a data acquirer acquiring a first image and a second image that are partial images, by using data acquired in a first angular section corresponding to a first time point and a second angular section corresponding to a second time and facing the first angular section, by performing a tomography scan on an object that is moving, and acquiring first information indicating a motion amount of the object by using the first image and the second image, and an image reconstructor reconstructing a target image indicating the object at a target time, based on the first information.

公开(公告)号：US09576391B2

公开(公告)日：2017-02-21

申请号：US14629078

申请日：2015-02-23

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Beom Ra ,  Seungeon Kim ,  Kyoung-yong Lee ,  Toshihiro Rifu ,  Jong-hyon Yi ,  Iljun Ahn ,  Yongjin Chang

IPC: G06K9/00 ,  G06T15/08 ,  A61B6/03 ,  A61B6/00 ,  G06T7/00 ,  G06T7/20 ,  G06T13/20 ,  G06T11/00

CPC classification number: G06T15/08 ,  A61B6/032 ,  A61B6/4078 ,  A61B6/4085 ,  A61B6/463 ,  A61B6/466 ,  A61B6/469 ,  A61B6/486 ,  A61B6/503 ,  A61B6/504 ,  A61B6/5205 ,  A61B6/5217 ,  A61B6/5264 ,  A61B6/5288 ,  A61B6/541 ,  A61B6/563 ,  G06T7/20 ,  G06T11/005 ,  G06T13/20 ,  G06T2207/10081 ,  G06T2211/412 ,  G06T2211/421 ,  G06T2215/16

Abstract: A tomography apparatus includes a data acquirer which acquires a first image which corresponds to a first time point and a second image which corresponds to a second time point by performing a tomography scan on an object; an image reconstructor which acquires first information which relates to a relationship between a motion amount of the object and the time based on a motion amount between the first image and the second image, predicts a third image which corresponds to a third time point between the first and second time points based on the first information, corrects the first information by using the predicted third image and measured data which corresponds to the third time point, and reconstructs the third image by using the corrected first information; and a display which displays the reconstructed third image.

Abstract translation: 断层摄影装置包括通过对物体进行断层摄影扫描来获取对应于第一时间点的第一图像和对应于第二时间点的第二图像的数据获取器; 基于第一图像和第二图像之间的运动量获取与物体的运动量与时间之间的关系相关的第一信息的图像重建器，预测与第一图像之间的第三时间点对应的第三图像 和基于第一信息的第二时间点，通过使用预测的第三图像和对应于第三时间点的测量数据来校正第一信息，并且通过使用校正的第一信息来重构第三图像; 以及显示重建的第三图像的显示器。

公开(公告)号：US20160206269A1

公开(公告)日：2016-07-21

申请号：US15001609

申请日：2016-01-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-wook Jung ,  Toshihiro Rifu ,  Min-kook Cho ,  Eun-ji Seo ,  Kwan-hee Han

IPC: A61B6/00 ,  G06T7/00 ,  G06T11/00 ,  A61B6/03

CPC classification number: A61B6/5258 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/5205 ,  G06T11/003 ,  G06T11/006

Abstract: A tomography imaging apparatus and a tomography imaging method are provided. The tomography imaging apparatus includes a data acquirer configured to acquire first X-ray data of an object for each of energy bands, and an image preprocessor configured to perform a beam hardening correction on the first X-ray data for each of the energy bands, to generate second X-ray data of the object. The tomography imaging apparatus further includes an image reconstructor configured to reconstruct a tomography image of the object based on the second X-ray data.

Abstract translation: 提供了一种断层成像装置和断层摄影成像方法。 断层成像装置包括：数据获取器，被配置为获取每个能带的对象的第一X射线数据;以及图像预处理器，被配置为对每个能带的第一X射线数据执行光束硬化校正， 以产生对象的第二X射线数据。 所述层析成像装置还包括：图像重建器，被配置为基于所述第二X射线数据来重建所述物体的断层图像。