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公开(公告)号：US20080247616A1
公开(公告)日：2008-10-09
申请号：US11695808
申请日：2007-04-03
IPC分类号： G06K9/00
CPC分类号： A61B34/20 , A61B34/10 , A61B90/36 , A61B2034/105 , A61B2034/2051 , A61B2090/364 , G06F19/321 , G06F19/3481 , G06T7/248 , G06T2207/30004 , G06T2207/30021 , G16H50/50
摘要： A system to navigate an image-guided object traveling in an area of interest of an imaged subject in relation to an acquired image of the imaged subject as created by an imaging system is provided. The system includes a navigation system to track movement of the object in the imaged subject in spatial relation to a navigation coordinate system, and a controller. The controller is operable in detecting an image of the object in the at least one image of the imaged subject, calculating a spatial relation between the location of the image of the object and a tracked location of the object, and modifying the spatial relation of the image coordinate system relative to the navigation coordinate system so as to reduce the difference between the location of the image of the object and the tracked location of the object by the navigation system.
摘要翻译： 提供了一种系统，用于相对于由成像系统创建的所拍摄的被摄体的获取图像，导航在成像对象的感兴趣区域中行进的图像引导对象。 该系统包括导航系统，以跟踪与导航坐标系空间关系的成像对象中的对象的移动，以及控制器。 控制器可操作地检测被摄体的至少一个图像中的对象的图像，计算对象的图像的位置与对象的跟踪位置之间的空间关系，以及修改对象的空间关系 相对于导航坐标系的图像坐标系，以便通过导航系统减少对象的图像的位置与对象的跟踪位置之间的差异。
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公开(公告)号：US07899226B2
公开(公告)日：2011-03-01
申请号：US11695808
申请日：2007-04-03
CPC分类号： A61B34/20 , A61B34/10 , A61B90/36 , A61B2034/105 , A61B2034/2051 , A61B2090/364 , G06F19/321 , G06F19/3481 , G06T7/248 , G06T2207/30004 , G06T2207/30021 , G16H50/50
摘要： A system to navigate an image-guided object traveling in an area of interest of an imaged subject in relation to an acquired image of the imaged subject as created by an imaging system is provided. The system includes a navigation system to track movement of the object in the imaged subject in spatial relation to a navigation coordinate system, and a controller. The controller is operable in detecting an image of the object in the at least one image of the imaged subject, calculating a spatial relation between the location of the image of the object and a tracked location of the object, and modifying the spatial relation of the image coordinate system relative to the navigation coordinate system so as to reduce the difference between the location of the image of the object and the tracked location of the object by the navigation system.
摘要翻译： 提供了一种系统，用于相对于由成像系统创建的所拍摄的被摄体的获取图像，导航在成像对象的感兴趣区域中行进的图像引导对象。 该系统包括导航系统，以跟踪与导航坐标系空间关系的成像对象中的对象的移动，以及控制器。 控制器可操作地检测被摄体的至少一个图像中的对象的图像，计算对象的图像的位置与对象的跟踪位置之间的空间关系，以及修改对象的空间关系 相对于导航坐标系的图像坐标系，以便通过导航系统减少对象的图像的位置与对象的跟踪位置之间的差异。
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公开(公告)号：US06980921B2
公开(公告)日：2005-12-27
申请号：US10713514
申请日：2003-11-14
CPC分类号： A61B5/06 , A61B34/20 , A61B90/36 , A61B2034/102 , A61B2034/2051 , A61B2034/2055 , A61B2034/2068 , A61B2034/2072 , A61B2090/376 , A61B2090/3958
摘要： The present invention provides an electromagnetic tracking system that includes a field generator and a field sensor arranged to generate and detect, respectively, an electromagnetic field. Both the transmitter and receiver coils are connected to signal conditioning and processing circuitry to provide outputs indicative of the coil signals. A processor operates on the signals to determine the coordinates of the sensing assembly relative to the generator assembly. The signal processor produces ratiometric outputs, and applies a mutual inductance model to solve for position/orientation coordinates. In some embodiments, a disturber in the form of a conductive ring or a sheath is disposed about an interfering piece of equipment to moderate and standardize disturbances due to eddy currents.
摘要翻译： 本发明提供一种电磁跟踪系统，其包括场发生器和现场传感器，其被布置成分别产生和检测电磁场。 发射器和接收器线圈都连接到信号调节和处理电路，以提供指示线圈信号的输出。 处理器对信号进行操作以确定感测组件相对于发电机组件的坐标。 信号处理器产生比例输出，并应用互感模型来求解位置/方位坐标。 在一些实施例中，导电环或护套形式的干扰器围绕设备的干扰件设置，以缓和并标准化由涡流引起的干扰。
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公开(公告)号：US06774624B2
公开(公告)日：2004-08-10
申请号：US10108197
申请日：2002-03-27
IPC分类号： G01B714
CPC分类号： A61B5/06 , A61B34/20 , A61B90/36 , A61B2034/102 , A61B2034/2051 , A61B2034/2055 , A61B2034/2068 , A61B2034/2072 , A61B2090/376 , A61B2090/3958
摘要： The present invention provides an electromagnetic tracking system that includes a field generator and a field sensor arranged to generate and detect, respectively, an electromagnetic field. Both the transmitter and receiver coils are connected to signal conditioning and processing circuitry to provide outputs indicative of the coil signals. A processor operates on the signals to determine the coordinates of the sensing assembly relative to the generator assembly. The signal processor produces ratiometric outputs, and applies a mutual inductance model to solve for position/orientation coordinates. In some embodiments, a disturber in the form of a conductive ring or a sheath is disposed about an interfering piece of equipment to moderate and standardize disturbances due to eddy currents.
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公开(公告)号：US07835779B2
公开(公告)日：2010-11-16
申请号：US11431722
申请日：2006-05-10
IPC分类号： A61B5/05
CPC分类号： A61B5/06 , A61B34/20 , A61B90/36 , A61B2034/102 , A61B2034/2051 , A61B2034/2055 , A61B2034/2068 , A61B2034/2072 , A61B2090/376 , A61B2090/3958
摘要： The present invention provides an electromagnetic tracking system that includes a field generator and a field sensor arranged to generate and detect, respectively, an electromagnetic field. Both the transmitter and receiver coils are connected to signal conditioning and processing circuitry to provide outputs indicative of the coil signals. A processor operates on the signals to determine the coordinates of the sensing assembly relative to the generator assembly. The signal processor produces ratiometric outputs, and applies a mutual inductance model to solve for position/orientation coordinates. In some embodiments, a disturber in the form of a conductive ring or a sheath is disposed about an interfering piece of equipment to moderate and standardize disturbances due to eddy currents.
摘要翻译： 本发明提供一种电磁跟踪系统，其包括场发生器和现场传感器，其被布置成分别产生和检测电磁场。 发射器和接收器线圈都连接到信号调节和处理电路，以提供指示线圈信号的输出。 处理器对信号进行操作以确定感测组件相对于发电机组件的坐标。 信号处理器产生比例输出，并应用互感模型来求解位置/方位坐标。 在一些实施例中，导电环或护套形式的干扰器围绕设备的干扰件设置，以缓和并标准化由涡流引起的干扰。
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公开(公告)号：US07096148B2
公开(公告)日：2006-08-22
申请号：US11024925
申请日：2004-12-22
CPC分类号： A61B5/06 , A61B34/20 , A61B90/36 , A61B2034/102 , A61B2034/2051 , A61B2034/2055 , A61B2034/2068 , A61B2034/2072 , A61B2090/376 , A61B2090/3958
摘要： The present invention provides an electromagnetic tracking system that includes a field generator and a field sensor arranged to generate and detect, respectively, an electromagnetic field. Both the transmitter and receiver coils are connected to signal conditioning and processing circuitry to provide outputs indicative of the coil signals. A processor operates on the signals to determine the coordinates of the sensing assembly relative to the generator assembly. The signal processor produces ratiometric outputs, and applies a mutual inductance model to solve for position/orientation coordinates. In some embodiments, a disturber in the form of a conductive ring or a sheath is disposed about an interfering piece of equipment to moderate and standardize disturbances due to eddy currents.
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