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公开(公告)号：US09299171B2
公开(公告)日：2016-03-29
申请号：US14007755
申请日：2012-04-02
CPC分类号： G06T11/005 , A61B5/0035 , A61B6/032 , A61B6/037 , A61B6/06 , A61B6/4085 , A61B6/4291 , A61B6/4417 , A61B6/5205 , A61B6/582 , F04C2270/041
摘要： A method comprises: acquiring imaging data using a tomographic radiological imaging apparatus (10); updating a calibration (42, 52) based on current information about the imaging apparatus; calibrating the imaging data using the up-to-date calibration; and reconstructing the calibrated imaging data to generate an image. The updating may be based on a current state of an idle or parked imaging modality that is not used in acquiring the imaging data, or on a measurement acquired together with the imaging data, or on the imaging data itself. For cone-beam computed tomography (CBCT) imaging data, the updating may comprise determining an intensity scale based upon intensity of at least one air pixel measured during the acquiring of the CBCT imaging data and updating an air scan template (60) by the intensity scale.
摘要翻译： 一种方法包括：使用断层摄影放射成像装置（10）获取成像数据; 基于关于成像设备的当前信息来更新校准（42,42）; 使用最新校准来校准成像数据; 并重构校准的成像数据以产生图像。 该更新可以基于在获取成像数据时不使用的空闲或停放的成像模式的当前状态，或者与成像数据一起获取的测量值，或者基于成像数据本身。 对于锥束计算机断层摄影（CBCT）成像数据，更新可以包括基于在获取CBCT成像数据期间测量的至少一个空气像素的强度来确定强度标度，并且将空气扫描模板（60）更新强度 规模。
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公开(公告)号：US20140014828A1
公开(公告)日：2014-01-16
申请号：US14007755
申请日：2012-04-02
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , A61B5/0035 , A61B6/032 , A61B6/037 , A61B6/06 , A61B6/4085 , A61B6/4291 , A61B6/4417 , A61B6/5205 , A61B6/582 , F04C2270/041
摘要： A method comprises: acquiring imaging data using a tomographic radiological imaging apparatus (10); updating a calibration (42, 52) based on current information about the imaging apparatus; calibrating the imaging data using the up-to-date calibration; and reconstructing the calibrated imaging data to generate an image. The updating may be based on a current state of an idle or parked imaging modality that is not used in acquiring the imaging data, or on a measurement acquired together with the imaging data, or on the imaging data itself. For cone-beam computed tomography (CBCT) imaging data, the updating may comprise determining an intensity scale based upon intensity of at least one air pixel measured during the acquiring of the CBCT imaging data and updating an air scan template (60) by the intensity scale.
摘要翻译： 一种方法包括：使用断层摄影放射成像装置（10）获取成像数据; 基于关于成像设备的当前信息来更新校准（42,42）; 使用最新校准来校准成像数据; 并重构校准的成像数据以产生图像。 该更新可以基于在获取成像数据时不使用的空闲或停放的成像模式的当前状态，或者与成像数据一起获取的测量值，或者基于成像数据本身。 对于锥束计算机断层摄影（CBCT）成像数据，更新可以包括基于在获取CBCT成像数据期间测量的至少一个空气像素的强度来确定强度标度，并且将空气扫描模板（60）更新强度 规模。
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