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    PATIENT-SPECIFIC AND AUTOMATIC X-RAY SYSTEM ADJUSTMENT BASED ON OPTICAL 3D SCENE DETECTION AND INTERPRETATION
    2.
    发明申请
    PATIENT-SPECIFIC AND AUTOMATIC X-RAY SYSTEM ADJUSTMENT BASED ON OPTICAL 3D SCENE DETECTION AND INTERPRETATION 有权
    基于光学三维场景的患者特异性和自动X射线系统调整检测与解释

    公开(公告)号：US20150228071A1

    公开(公告)日：2015-08-13

    申请号：US14422240

    申请日：2013-08-26

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Sascha Andreas Jockel ,  Christoph Kurze ,  Dirk Manke

    IPC: G06T7/00 ,  G01B11/25 ,  H04N13/02 ,  G06T3/00

    CPC classification number: G06T7/0012 ,  A61B6/0407 ,  A61B6/06 ,  A61B6/08 ,  A61B6/4464 ,  A61B6/527 ,  A61B6/544 ,  A61B6/545 ,  G01B11/254 ,  G06T3/00 ,  G06T7/50 ,  G06T7/70 ,  G06T2207/10116 ,  H04N13/204

    Abstract: An apparatus (130) and method for automatically or semi-automatically controlling a collimator (COL) of an x-ray imager (100) to collimate imager (100)'s x-ray beam and adjusting an alignment of the x-ray imager (100) in respect of an object (PAT). The collimation and alignment operation is based on 3D image data (3DI) of the object (PAT) to be imaged. The 3D image data (3DI) is acquired by a sensor (S). The sensor (S) operates on non-ionizing radiation. The 3D image data (3DI) describes a shape in 3D of the object (PAT) and anatomic landmarks are derived therefrom to define a collimation window (W) for a region of interest (ROI). Based on the collimation window (W) the collimator (COL)'s setting and imager (100) alignment is adjusted accordingly.

    Abstract translation: 一种用于自动或半自动地控制X射线成像仪（100）的准直仪（COL）以准直成像仪（100）的X射线束并且调整x射线成像仪的对准的装置（130）和方法 （100）相对于物体（PAT）。 准直和对准操作基于要成像的对象（PAT）的3D图像数据（3DI）。 3D图像数据（3DI）由传感器（S）获取。 传感器（S）在非电离辐射下工作。 3D图像数据（3DI）描述了对象（PAT）的3D中的形状，并且从其中导出解剖标志以定义感兴趣区域（ROI）的准直窗口（W）。 基于准直窗（W），相应地调整准直器（COL）的设置和成像器（100）对准。

    X-ray radiography apparatus
    3.
    发明授权
    X-ray radiography apparatus 有权

    公开(公告)号：US11051783B2

    公开(公告)日：2021-07-06

    申请号：US16621415

    申请日：2018-06-15

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Julien Senegas ,  Sascha Andreas Jockel ,  Hanns-Ingo Maack ,  Martin Bergtholdt

    IPC: A61B6/00 ,  A61B6/04 ,  A61B6/06 ,  A61B6/08 ,  G06T7/00 ,  G06T11/00

    Abstract: The present invention relates to an X-ray radiograph apparatus (10). It is described to placing (110) an X-ray source (20) relative to an X-ray detector (30) to form an examination region for the accommodation of an object, wherein, a reference spatial coordinate system is defined on the basis of geometry parameters of the X-ray radiography apparatus. A camera (40) is located (120) at a position and orientation to view the examination region. A depth image of the object is acquired (130) with the camera within a camera spatial coordinate system, wherein within the depth image pixel values represent distances for corresponding pixels. A processing unit (50) transforms (140), using a mapping function, the depth image of the object within the camera spatial coordinate system to the reference spatial coordinate system, wherein, the camera position and orientation have been calibrated with respect to the reference spatial coordinate system to yield the mapping function that maps a spatial point within the camera spatial coordinate system to a corresponding spatial point in the reference spatial coordinate system. A synthetic image is generated (150) within the reference spatial coordinate system. The synthetic image is output (160) with an output unit (60).

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