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    • 1. 发明授权
    • Automatic determination of parameters of an imaging geometry
    • 自动确定成像几何参数
    • US07903852B2
    • 2011-03-08
    • US11572710
    • 2005-07-19
    • Rudolf SpringorumKirsten MeetzFrederik VisserDaniel Bystrov
    • Rudolf SpringorumKirsten MeetzFrederik VisserDaniel Bystrov
    • G06K9/00
    • G06T7/68G06T7/80G06T2207/30004
    • The apparatus comprises an input for receiving a suitable source image data of an object. The core of the apparatus is formed by a control unit 4 arranged to load image data from the input and determine a spatial position and orientation of a portion of the object and to automatically calculate actual parameters of the imaging geometry based on said position and orientation and using default parameters if the imaging geometry, selected by the control unit in accordance with the portion of the object. The apparatus according to the invention comprises a recognition module arranged to determine a spatial position and orientation of the portion of the object with respect to a coordinate system of an imaging apparatus conceived to use the actual parameters of the imaging geometry provided by the apparatus.
    • 该装置包括用于接收对象的合适的源图像数据的输入。 该装置的核心由控制单元4形成,该控制单元4布置成从输入装载图像数据,并且确定对象的一部分的空间位置和方向,并且基于所述位置和方向自动计算成像几何的实际参数;以及 使用默认参数,如果成像几何,由控制单元根据对象的部分选择。 根据本发明的装置包括识别模块,该识别模块被布置成确定物体的该部分相对于使用由该装置提供的成像几何的实际参数构思的成像装置的坐标系的空间位置和取向。
    • 2. 发明申请
    • Automatic Determination of Parameters of an Imaging Geometry
    • US20080267509A1
    • 2008-10-30
    • US11572710
    • 2005-07-19
    • Rudolf SpringorumKirsten MeetzFrederik VisserDaniel Bystrov
    • Rudolf SpringorumKirsten MeetzFrederik VisserDaniel Bystrov
    • G06K9/46
    • G06T7/68G06T7/80G06T2207/30004
    • The apparatus (1) comprises an input (2) for receiving a suitable source image data of an object. The core of the apparatus (1) is formed by a control unit (4) which is arranged to load image data from the input (2) and determine a spatial position and orientation of a portion of the object and to automatically calculate actual parameters (4a) of the imaging geometry based on said position and orientation and using default parameters if the imaging geometry, selected by the control unit (4) in accordance with the portion of the object. The apparatus (1) further comprises a storage unit (8) arranged to store at least one set of default parameters of the imaging geometry, which may be representative of an imaging protocol. The working memory (6) typically holds the (parts of) image data being processed and the instructions for the suitable image processing means used for processing those parts of the image data. The apparatus (1) according to the invention comprises a recognition module (7) arranged to determine a spatial position and orientation of the portion of the object with respect to a coordinate system of an imaging apparatus conceived to use the actual parameters of the imaging geometry provided by the apparatus (1). When the position and orientation (7a) of the portion of the object with respect to the coordinate system of the data acquisition module is established, the control unit calculates actual parameters (4) of the imaging geometry based on a suitable matching between the spatial position and orientation (7a) of the portion of the object conceived to be imaged and the default parameters of the imaging geometry (3). Preferably, the apparatus (1) further comprises a suitably arranged user interface (5) for allowing an adjustment of automatically established actual parameters of the imaging geometry by a user Preferably, the output (9) comprises a result of the automatic planning of the imaging geometry, which may be directly converted into a suitable control signal for the data acquisition module and/or be made available in a suitable form for archiving purposes. The invention further relates to an imaging system, a method and a computer program for automatically generating scan parameters.