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    Apparatus and method for virtual view generation on multi-view image reconstruction system by virtual emission of X-rays
    2.
    发明授权
    Apparatus and method for virtual view generation on multi-view image reconstruction system by virtual emission of X-rays 有权
    通过X射线的虚拟发射在多视点图像重构系统上进行虚拟视图生成的装置和方法

    公开(公告)号：US09058682B2

    公开(公告)日：2015-06-16

    申请号：US13728338

    申请日：2012-12-27

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jae Hak Lee ,  Jong Ha Lee ,  Young Hun Sung ,  Kang Eui Lee ,  Kwang Eun Jang

    IPC: G06K9/00 ,  G06T17/00 ,  G06T11/00 ,  A61B6/02 ,  A61B6/03 ,  A61B6/00

    CPC classification number: G06T17/00 ,  A61B6/025 ,  A61B6/03 ,  A61B6/5223 ,  G06T11/008 ,  G06T2211/412 ,  G06T2211/436

    Abstract: Provided is an apparatus and method for generating a virtual view in an image reconstruction system which uses multiple views. In the image reconstruction system which uses multiple views, the virtual view generating apparatus may receive original view projection images that are generated by emitting X rays toward an object via original views, three-dimensionally reconstruct the object by using the original view projection images, generate original view reprojection images by virtually emitting X-rays toward the reconstructed 3D object via the original views, estimate a motion of the reconstructed 3D object with respect to at least two of the original view reprojection images using a block-based motion estimation scheme, and generate an intermediate view projection image with respect to the at least two of the original view reprojection images by using information relating to the estimated motion.

    Abstract translation: 提供了一种用于在使用多个视图的图像重建系统中生成虚拟视图的装置和方法。 在使用多个视图的图像重建系统中，虚拟视图生成装置可以接收通过原始图像向对象发射X射线而生成的原始视图投影图像，通过使用原始视图投影图像三维重建对象，生成 通过经由原始视图向重建的3D对象虚拟地发射X射线的原始视图再现投影图像，使用基于块的运动估计方案估计相对于至少两个原始视图重播投影图像的重建3D对象的运动，以及 通过使用与估计的运动相关的信息，相对于原始视野重播图像中的至少两个生成中间视图投影图像。

    X-ray imaging apparatus and control method thereof
    3.
    发明授权
    X-ray imaging apparatus and control method thereof 有权

    公开(公告)号：US10039517B2

    公开(公告)日：2018-08-07

    申请号：US14498498

    申请日：2014-09-26

    Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Korea Advanced Institute of Science and Technology

    Inventor： Ji Young Choi ,  Jong Ha Lee ,  Young Hun Sung ,  Yunjeong Lee ,  Seungryong Cho

    IPC: A61B6/00 ,  A61B6/03 ,  G06T15/00 ,  G06T11/00

    Abstract: An X-ray imaging apparatus includes an X-ray generator configured to transmit X-rays to an object, an X-ray detector configured to detect the X-rays transmitted through the object and convert the detected X-rays into electrical signals, a gantry in which the X-ray generator and the X-ray detector are installed so as to be opposite to each other, the gantry being rotatable about a bore, a controller configured to control a rotation of the gantry during bio-signal cycles of the object so that the gantry is rotated from different start positions whenever one of the bio-signal cycles is started, and an image processor configured to generate a 4D image of the object by applying a prior image-based compressed sensing image reconstruction algorithm to plural 2D projection images acquired from the electrical signals generated by converting the X-rays detected during the rotation of the gantry.

    X-ray generation module, X-ray imaging apparatus, and X-ray imaging method
    5.
    发明授权
    X-ray generation module, X-ray imaging apparatus, and X-ray imaging method 有权
    X射线成像装置，X射线成像装置，X射线成像装置等

    公开(公告)号：US09439614B2

    公开(公告)日：2016-09-13

    申请号：US14055361

    申请日：2013-10-16

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Kwang Eun Jang ,  Young Hun Sung ,  Jae Hak Lee ,  Jong Ha Lee

    IPC: A61B6/04 ,  A61B6/00 ,  A61B6/03

    CPC classification number: A61B6/502 ,  A61B6/03 ,  A61B6/488 ,  A61B6/542

    Abstract: Disclosed is an X-ray imaging apparatus, which includes a plurality of X-ray generation modules configured to emit X-rays to a subject, the X-ray generation modules being configured to move independently of one another, an X-ray detector configured to detect a plurality of X-rays emitted from the plurality of X-ray generation modules and which have passed through the subject, and an image processor configured to acquire a plurality of X-ray images from the plurality of detected X-rays.

    Abstract translation: 公开了一种X射线成像装置，其包括被配置为向被摄体发射X射线的多个X射线产生模块，所述X射线产生模块被配置为彼此独立地移动，X射线检测器配置 检测从多个X射线产生模块发射并穿过被摄体的多个X射线，以及被配置为从多个检测到的X射线获取多个X射线图像的图像处理器。

    Image reconstruction system, apparatus, and method employing non-sequential scanning scheme using real-time feedback
    6.
    发明授权
    Image reconstruction system, apparatus, and method employing non-sequential scanning scheme using real-time feedback 有权
    使用实时反馈的非顺序扫描方案的图像重建系统，装置和方法

    公开(公告)号：US09057678B2

    公开(公告)日：2015-06-16

    申请号：US13679787

    申请日：2012-11-16

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jae Hak Lee ,  Jong Ha Lee ,  Sung Cheol Kim ,  Young Hun Sung ,  Kang Eui Lee ,  Kwang Eun Jang

    IPC: G01N23/04

    CPC classification number: G01N23/04 ,  G01N23/046 ,  G01N2223/419

    Abstract: An image reconstruction system, apparatus, and method employing a non-sequential scanning scheme using real-time feedback are provided. A projection information generating unit is configured to generate at least one piece of projection information by the X-ray irradiated to the object in the at least one viewpoint. A projection information comparing unit is configured to compare predicted intermediate projection information with measured intermediate projection information from the generated projection information. The predicted intermediate projection information is predicted from pieces of projection information generated from different viewpoints, and the measured intermediate projection information is measured in an intermediate viewpoint corresponding to the predicted intermediate projection information. A determining unit is configured to determine whether to irradiate the X-ray to the object in an additional viewpoint. An image reconstructing unit is configured to reconstruct the generated projection information, and to acquire an image representing the object.

    Abstract translation: 提供了使用实时反馈的非顺序扫描方案的图像重建系统，装置和方法。 投影信息生成单元被配置为通过在至少一个视点中照射到对象的X射线来生成至少一条投影信息。 投影信息比较单元被配置为将预测的中间投影信息与所生成的投影信息的测量的中间投影信息进行比较。 根据从不同视点生成的投影信息预测预测中间投影信息，并且在与预测中间投影信息对应的中间视点中测量测量的中间投影信息。 确定单元被配置为在另外的视点中确定是否向所述对象照射所述X射线。 图像重建单元被配置为重建所生成的投影信息，并且获取表示对象的图像。

    Method and apparatus for generating x-ray tomographic image data
    7.
    发明授权
    Method and apparatus for generating x-ray tomographic image data 有权

    公开(公告)号：US10559101B2

    公开(公告)日：2020-02-11

    申请号：US16181685

    申请日：2018-11-06

    Applicant: Samsung Electronics Co., Ltd. ,  Korea Advanced Institute Of Science And Technology

    Inventor： Jong Ha Lee ,  Ho Yeon Lee ,  Seung Ryong Cho

    IPC: G06T11/00 ,  A61B6/02

    Abstract: Provided are a method and apparatus for interpolating X-ray tomographic image data by using a machine learning model. A method of interpolating an X-ray tomographic image or X-ray tomographic composite image data includes obtaining a trained model parameter via machine learning that uses a sub-sampled sinogram for learning as an input and uses a full-sampled sinogram for learning as a ground truth; radiating X-rays onto an object at a plurality of preset angular locations via an X-ray source, and obtaining a sparsely-sampled sinogram including X-ray projection data obtained via X-rays detected at the plurality of preset angular locations; applying the trained model parameter to the sparsely-sampled sinogram by using the machine learning model; and generating a densely-sampled sinogram by estimating X-ray projection data not obtained with respect to the object on the sparsely-sampled sinogram.

    X-ray imaging apparatus, x-ray image generation method, and 3D imaging apparatus
    9.
    发明授权
    X-ray imaging apparatus, x-ray image generation method, and 3D imaging apparatus 有权
    X射线成像装置，X射线图像生成方法和3D成像装置

    公开(公告)号：US09386956B2

    公开(公告)日：2016-07-12

    申请号：US14104295

    申请日：2013-12-12

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jae Hak Lee ,  Young Hun Sung ,  Kang Eui Lee ,  Jong Ha Lee ,  Kwang Eun Jang

    IPC: G06T15/00 ,  A61B6/02 ,  A61B6/04 ,  A61B6/00 ,  G06T11/00

    CPC classification number: A61B6/025 ,  A61B6/0414 ,  A61B6/502 ,  A61B6/5205 ,  A61B6/588 ,  G06T11/006 ,  G06T11/008

    Abstract: The X-ray imaging apparatus includes an X-ray source that emits X-rays to an object at different original-view positions, an X-ray detector that acquires original-view images by detecting X-rays having passed through the object, and an image controller that reconstructs a 3D volume image representation of the object from the original-view images and generates close-view images by virtually emitting X-rays to the 3D volume image representation of the object at a shorter distance than a distance between the X-ray source and the object.

    Abstract translation: X射线成像装置包括：X射线源，其在不同的原始视点位置向对象发射X射线; X射线检测器，其通过检测穿过物体的X射线获取原始图像;以及 图像控制器，其从原始视图图像重建对象的3D体积图像表示，并且以比X之间的距离更短的距离将X射线虚拟地发射到对象的3D体积图像表示，并生成近视图像 -ray源和对象。

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