公开(公告)号：US09743901B2

公开(公告)日：2017-08-29

申请号：US14547626

申请日：2014-11-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jae Mock Yi ,  Dong Goo Kang ,  Young Hun Sung ,  Jae Hak Lee ,  Seok Min Han

IPC: A61B6/00 ,  G01N23/04 ,  A61B6/12

CPC classification number: A61B6/542 ,  A61B6/12 ,  A61B6/4035 ,  A61B6/467 ,  A61B6/469 ,  A61B6/481 ,  A61B6/487 ,  A61B6/504 ,  A61B6/54 ,  G01N23/04 ,  G01N2223/314 ,  G01N2223/427

Abstract: An X-ray imaging apparatus and method are provided. The X-ray imaging apparatus according to an aspect includes an X-ray source configured to radiate X-rays onto a subject region, an X-ray detector configured to detect the radiated X-rays and obtain a plurality of frame images of the subject region, and an ROI filter located between the X-ray source and the X-ray detector, configured to move toward the X-ray source and the X-ray detector, and configured to filter the X-rays radiated from the X-ray source.

公开(公告)号：US09928618B2

公开(公告)日：2018-03-27

申请号：US14517193

申请日：2014-10-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jae Hak Lee ,  Dong Goo Kang ,  Young Hun Sung ,  Jae Mock Yi ,  Ji Young Choi ,  Seok Min Han

IPC: A61B6/00 ,  G06T11/00 ,  A61B6/06 ,  G06T7/30

CPC classification number: G06T11/005 ,  A61B6/06 ,  A61B6/40 ,  A61B6/4441 ,  A61B6/4464 ,  A61B6/469 ,  A61B6/487 ,  A61B6/5235 ,  A61B6/5264 ,  G06T7/30 ,  G06T2207/10116

Abstract: An X-ray imaging apparatus is provided. The X-ray imaging apparatus includes an X-ray generator configured to radiate X-rays onto an object having a region of interest (ROI) and a non-ROI, a filter configured to adjust an X-ray dose of the X-rays incident on the ROI and the non-ROI, an X-ray detector configured to detect the X-rays transmitted through the object and convert the X-rays into X-ray data, and an image processing unit configured to obtain a frame image using the X-ray data, register the obtained frame image to a previous frame image, synthesize the frame image and the previous frame image, and generate a reconstructed frame image.

公开(公告)号：US09472001B2

公开(公告)日：2016-10-18

申请号：US14463274

申请日：2014-08-19

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SNU R&DB FOUNDATION

Inventor： Kye Young Jeong ,  Byung Kwan Park ,  Jae Mock Yi ,  Jae Sung Lee ,  Hong Jung ,  Jung Ah Son

IPC: G06T11/00

CPC classification number: G06T11/006 ,  G06T2211/416 ,  G06T2211/421

Abstract: The image reconstruction method includes performing a forward projection of a first image of an object using a line integral-based value and a point spread function (PSF)-based value to acquire a forward projection value, and performing a back projection of raw image data using the forward projection value to acquire a second image of the object.

Abstract translation: 图像重建方法包括使用基于线积分的值和基于点扩展函数（PSF）的值来执行对象的第一图像的向前投影以获取前向投影值，并且执行原始图像数据的反投影 使用前向投影值来获取对象的第二图像。

公开(公告)号：US09658348B2

公开(公告)日：2017-05-23

申请号：US14554905

申请日：2014-11-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Hun Sung ,  Jae Hak Lee ,  Dong Goo Kang ,  Jae Mock Yi

IPC: H05G1/56 ,  G01T1/29 ,  G01N23/04 ,  H04N5/32 ,  H04N5/345 ,  H04N5/3745 ,  H04N5/378

CPC classification number: G01T1/2921 ,  G01N23/04 ,  H04N5/32 ,  H04N5/3454 ,  H04N5/3745 ,  H04N5/378

Abstract: An X-ray detector capable of independently controlling a read-out rate for each region, an X-ray imaging apparatus having the same, and a method of controlling the same are provided. The X-ray detector includes a plurality of pixels which are two-dimensionally arranged and configured to output an electrical signal corresponding to incident X-rays, a plurality of gate lines configured to connect the plurality of pixels in a row direction, a plurality of data lines configured to connect the plurality of pixels in a column direction, a read-out circuit configured to read out the electrical signal generated by the plurality of pixels through the plurality of data lines, and a switcher configured to independently turn connections between the respective data lines in the plurality of data lines and the read-out circuit on and off.

公开(公告)号：US09907528B2

公开(公告)日：2018-03-06

申请号：US14868887

申请日：2015-09-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jae Mock Yi ,  Dong-Goo Kang ,  Young Hun Sung ,  Jae Hak Lee ,  Ji Young Choi ,  Seok Min Han

IPC: G06K9/00 ,  A61B6/00 ,  G06T5/00 ,  G01N23/083 ,  G01N23/06

CPC classification number: A61B6/5282 ,  A61B6/4241 ,  A61B6/463 ,  A61B6/482 ,  A61B6/5235 ,  G01N23/083 ,  G01N23/085 ,  G06T5/00 ,  G06T2207/10116

Abstract: An X-ray imaging apparatus may include an image acquirer configured to acquire a plurality of X-ray images of an object in different energy bands; and an image processor configured to perform scattering correction on the plurality of X-ray images to remove X-ray scattering from the plurality of X-ray images, perform material separation on the plurality of X-ray images on which the scattering correction has been performed to acquire material information of at least one material included in the object, and repeatedly perform the scattering correction and the material separation depending on whether a predetermined condition is satisfied.

公开(公告)号：US09649081B2

公开(公告)日：2017-05-16

申请号：US14501344

申请日：2014-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dong Goo Kang ,  Seok Min Han ,  Young Hun Sung ,  Jae Mock Yi ,  Jae Hak Lee

IPC: A61B6/00

CPC classification number: A61B6/482 ,  A61B6/405 ,  A61B6/4241 ,  A61B6/4441 ,  A61B6/481 ,  A61B6/502 ,  A61B6/504 ,  A61B6/5235 ,  A61B6/54

Abstract: Disclosed herein are an X-ray image apparatus and a control method for the same. The X-ray image apparatus includes an X-ray generator configured to sequentially irradiate an object with a plurality of X-rays of mutually different energy bands, an X-ray detector configured to acquire a plurality of pieces of X-ray data corresponding to the plurality of mutually different energy bands by detecting X-rays transmitted through the object, an image processor configured to convert the acquired plurality of pieces of X-ray data into a plurality of X-ray images and separate blood vessel X-ray images of the object from the plurality of X-ray images, and a controller configured to control operations of the X-ray generator so that the sequentially irradiated plurality of X-rays of the mutually different energy bands are repeatedly irradiated for fixed cycles. The X-ray generator may be configured to sequentially irradiate the object with the plurality of X-rays for a first time interval in the fixed cycles, and the first time interval may be different from a second time interval that is a time interval between a time point at which a final X-ray of a single cycle among the fixed cycles is irradiated and a time point at which a first X-ray of the following cycle among the fixed cycles is irradiated.