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公开(公告)号：US20080212864A1
公开(公告)日：2008-09-04
申请号：US10597928
申请日：2005-02-14
申请人： Hans Bornefalk
发明人： Hans Bornefalk
IPC分类号： G06K9/00
CPC分类号： G06K9/4642
摘要： The present invention relates to a method and arrangement for detecting a Region of Interest in an image data set, especially digitalized X-ray image. The method comprises the steps of: extracting phase information from the image data, using said phase information for differentiating between different lines and edges, and skewing said lines towards a centre.
摘要翻译： 本发明涉及用于检测图像数据组，特别是数字化X射线图像中的感兴趣区域的方法和装置。 该方法包括以下步骤：从图像数据中提取相位信息，使用所述相位信息来区分不同的线和边缘，并将所述线偏向中心。
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公开(公告)号：US08378310B2
公开(公告)日：2013-02-19
申请号：US12707076
申请日：2010-02-17
IPC分类号： G01T1/24
CPC分类号： G06T11/005 , G01T1/171 , G01T1/24 , G06T2211/408
摘要： The current invention applies to photon counting silicon x-ray detectors with energy discriminating capabilities and applications in x-ray imaging systems. The overall image quality produced by such a system is improved by the presented novel methods for optimally using the energy information in Compton events and making selective use of counts induced from charges collected in neighboring pixels. The pile-up problem during high-flux imaging regimes is reduced by a novel method for signal reset, which improves the count efficiency by reducing the risk of losing event due to signal pile-up in the read out electronics chain.
摘要翻译： 本发明适用于具有能量鉴别能力和x射线成像系统中的应用的光子计数硅x射线检测器。 通过提出的用于最佳地使用康普顿事件中的能量信息的新颖方法并且选择性地使用从相邻像素中收集的电荷引起的计数来改善由这样的系统产生的整体图像质量。 高通量成像方案中的堆积问题通过一种用于信号复位的新颖方法来减少，通过降低由于读出的电子链中的信号堆积而导致的事件丢失的风险，提高了计数效率。
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公开(公告)号：US20100215230A1
公开(公告)日：2010-08-26
申请号：US12707076
申请日：2010-02-17
CPC分类号： G06T11/005 , G01T1/171 , G01T1/24 , G06T2211/408
摘要： The current invention applies to photon counting silicon x-ray detectors with energy discriminating capabilities and applications in x-ray imaging systems. The overall image quality produced by such a system is improved by the presented novel methods for optimally using the energy information in Compton events and making selective use of counts induced from charges collected in neighboring pixels. The pile-up problem during high-flux imaging regimes is reduced by a novel method for signal reset, which improves the count efficiency by reducing the risk of losing event due to signal pile-up in the read out electronics chain.
摘要翻译： 本发明适用于具有能量鉴别能力和x射线成像系统中的应用的光子计数硅x射线检测器。 通过提出的用于最佳地使用康普顿事件中的能量信息的新颖方法并且选择性地使用从相邻像素中收集的电荷引起的计数来改善由这样的系统产生的整体图像质量。 高通量成像方案中的堆积问题通过一种用于信号复位的新颖方法来减少，通过降低由于读出的电子链中的信号堆积而导致的事件丢失的风险，提高了计数效率。
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