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    • 2. 发明申请
    • TECHNIQUE FOR REGISTERING IMAGE DATA OF AN OBJECT
    • 用于注册对象的图像数据的技术
    • US20110069867A1
    • 2011-03-24
    • US12886823
    • 2010-09-21
    • Ulrich BuehnerLars MetzAmir SarvestaniHans Schoepp
    • Ulrich BuehnerLars MetzAmir SarvestaniHans Schoepp
    • G06K9/00G06K9/32
    • A61B34/20A61B90/39A61B2017/00221A61B2017/00951A61B2034/2055A61B2034/2065A61B2034/2068A61B2034/2072A61B2090/0818A61B2090/363A61B2090/374A61B2090/3762A61B2090/3983A61B2090/3995
    • A technique of registering image data of an object 112 with at least one of a location and an orientation of the object 112 is provided. A method embodiment of this technique comprises the step of providing three-dimensional image data generated for the object 112, the image data being representative of at least a portion of the object 112 and of reference markings 130 associated with the object 112. The reference markings 130 have a known spatial relationship with a registration tracker 122 adapted to be tracked by a navigation system 100. The method further comprises providing registration tracking data representative of at least one of a spatial location and a spatial orientation of the registration tracker 122 and providing object tracking data representative of at least one of a spatial location and a spatial orientation of an object tracker adapted to be tracked by the navigation system. The object tracker 124 has a fixed spatial relationship with the object 112. In a next step, the method calculates from the registration tracking data and the object tracking data for a given point in time the relative position between the registration tracker 122 and the object tracker 124. Than, registered image data is generated representative of at least one of the location and the orientation of the object 112 taking into account the spatial relationship between the reference markings 130 and the registration tracker 122 on the one hand and the relative position between the registration tracker 122 and the object tracker 124 on the other.
    • 提供了用对象112的位置和取向中的至少一个来登记对象112的图像数据的技术。 该技术的方法实施例包括提供为对象112生成的三维图像数据的步骤,图像数据表示对象112的至少一部分以及与对象112相关联的参考标记130.参考标记 130具有与适于由导航系统100跟踪的注册跟踪器122的已知的空间关系。该方法还包括提供表示注册跟踪器122的空间位置和空间取向和提供对象中的至少一个的注册跟踪数据 跟踪表示适于由导航系统跟踪的对象跟踪器的空间位置和空间取向中的至少一个的数据。 对象跟踪器124与对象112具有固定的空间关系。在下一步骤中,该方法针对给定时间点的注册跟踪数据和对象跟踪数据计算注册跟踪器122和对象跟踪器之间的相对位置 考虑到参考标记130和注册跟踪器122之间的空间关系以及一方面的相对位置之间的相对位置,生成表示对象112的位置和取向中的至少一个的登记图像数据。 注册跟踪器122和对象跟踪器124。