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公开(公告)号：US20160209520A1
公开(公告)日：2016-07-21
申请号：US14601580
申请日：2015-01-21
Applicant: Analogic Corporation
Inventor： Doug Q. Abraham , Basak Ulker Karbeyaz , David Rozas
Abstract: Among other things, one or more techniques and/or systems for counting detection events via a photon counting detector array is provided. A first instance where an amplitude of an electrical signal exceeds an event threshold is detected. The first instance is generated responsive to a first detection event at a detector cell. An event counter is disabled from counting other detection events at the detector cell for a first blocking interval. At a conclusion of the first blocking interval, the amplitude of the electrical signal is determined Responsive to determining that the amplitude of the electrical signal is below the event threshold, an adjustment is made to an event count based upon the first detection event. Responsive to determining that the amplitude of the electrical signal exceeds the event threshold, the event counter is disabled from counting other detection events at the detector cell for a second blocking interval.
Abstract translation: 提供了一种或多种用于通过光子计数检测器阵列对检测事件进行计数的技术和/或系统。 检测到电信号的幅度超过事件阈值的第一情况。 响应于检测器单元处的第一检测事件产生第一实例。 在第一个阻塞间隔期间，事件计数器禁止在检测器单元处计数其他检测事件。 在第一阻塞间隔的结论处，确定电信号的幅度响应于确定电信号的振幅低于事件阈值，基于第一检测事件对事件计数进行调整。 响应于确定电信号的幅度超过事件阈值，事件计数器被禁止计数在检测器单元处的第二阻塞间隔的其他检测事件。
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公开(公告)号：US20190192106A1
公开(公告)日：2019-06-27
申请号：US16235409
申请日：2018-12-28
Applicant: Analogic Corporation
Inventor： David Rozas , Aleksander Roshi , Charles H. Shaughnessy
CPC classification number: A61B6/585 , A61B6/032 , A61B6/5252 , G06T11/005 , H01J35/106 , H01J2235/1204 , H01J2235/1266
Abstract: Among other things, one or more techniques and/or systems for calibration of a radiation system to compute a gain correction(s) are provided. A calibration procedure is performed during which a portion of the detector array is shadowed by an object, causing the detector array to be non-uniformly exposed to radiation. A portion of a projection generated from the calibration procedure and indicative of radiation that did not traverse the object is separated from a portion of the projection indicative of radiation that did traverse the object, and a gain correction(s) is computed from the portion of the projection indicative of radiation that did not traverse the object (e.g., and is thus indicative of radiation that merely traversed air).
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公开(公告)号：US10206650B2
公开(公告)日：2019-02-19
申请号：US14771858
申请日：2013-03-01
Applicant: ANALOGIC CORPORATION
Inventor： David Rozas , Aleksander Roshi , Charles Shaughnessy
Abstract: Among other things, one or more techniques and/or systems for calibration of a radiation system to compute a gain correction(s) are provided. A calibration procedure is performed during which a portion of the detector array is shadowed by an object, causing the detector array to be non-uniformly exposed to radiation. A portion of a projection generated from the calibration procedure and indicative of radiation that did not traverse the object is separated from a portion of the projection indicative of radiation that did traverse the object, and a gain correction(s) is computed from the portion of the projection indicative of radiation that did not traverse the object (e.g., and is thus indicative of radiation that merely traversed air).
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公开(公告)号：US09588239B2
公开(公告)日：2017-03-07
申请号：US14693370
申请日：2015-04-22
Applicant: Analogic Corporation
Inventor： Douglas Abraham , David Rozas , Anton Deykoon
CPC classification number: G01T1/247 , A61B6/03 , A61B6/4241 , A61B6/5205 , G01T1/1642 , G01T1/17 , G01T1/2985
Abstract: Among other things, one or more techniques and/or systems are described for generating an output of a detector cell of a photon counting detector array. A counter block generates integration data and photon counting data associated with the photon counting detector array. Responsive to a number of detection events counted during a measurement interval (e.g., a view) not exceeding a first detection event count threshold, a first output may be generated based upon the photon counting data. Responsive to the number of detection events exceeding a second detection event count threshold, a second output may be generated based upon the integration data. Responsive to the number of detection events being between the first detection event count threshold and the second detection event count threshold, a blended output may be generated based upon the photon counting data and the integration data.
Abstract translation: 除其他之外，描述了一个或多个技术和/或系统，用于产生光子计数检测器阵列的检测器单元的输出。 计数器块产生与光子计数检测器阵列相关联的积分数据和光子计数数据。 响应于在不超过第一检测事件计数阈值的测量间隔（例如，视图）期间计数的多个检测事件，可以基于光子计数数据生成第一输出。 响应于超过第二检测事件计数阈值的检测事件的数量，可以基于积分数据生成第二输出。 响应于在第一检测事件计数阈值和第二检测事件计数阈值之间的检测事件的数量，可以基于光子计数数据和积分数据生成混合输出。
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公开(公告)号：US10398405B2
公开(公告)日：2019-09-03
申请号：US16235409
申请日：2018-12-28
Applicant: Analogic Corporation
Inventor： David Rozas , Aleksander Roshi , Charles H. Shaughnessy
Abstract: Among other things, one or more techniques and/or systems for calibration of a radiation system to compute a gain correction(s) are provided. A calibration procedure is performed during which a portion of the detector array is shadowed by an object, causing the detector array to be non-uniformly exposed to radiation. A portion of a projection generated from the calibration procedure and indicative of radiation that did not traverse the object is separated from a portion of the projection indicative of radiation that did traverse the object, and a gain correction(s) is computed from the portion of the projection indicative of radiation that did not traverse the object (e.g., and is thus indicative of radiation that merely traversed air).
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Patent Agency Ranking
公开(公告)号：US10388000B2
公开(公告)日：2019-08-20
申请号：US15511267
申请日：2014-09-15
Applicant: Analogic Corporation
Inventor： Basak Ulker Karbeyaz , Kevin Cheng , Charles Shaughnessy , David Rozas
Abstract: Among other things, one or more techniques and/or systems are described for processing images yielded from an examination via radiation to reduce visible noise in the images. After an image is reconstructed, a noise contribution to the image (e.g., an amount of noise in the image) is estimated to determine a target noise contribution for the image. The target noise contribution for the image may vary based upon, among other things, dose of radiation, aspects or properties of an object being imaged, etc. The image is subsequently filtered using one or more filtering techniques to generate a filtered image, and a noise contribution to the filtered image is determined. When the noise contribution to the filtered image satisfies the target noise contribution (e.g., a sufficient amount of noise has been filtered out of the image), the filtered image is combined with the reconstructed image to generate a blended image.
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公开(公告)号：US20170249723A1
公开(公告)日：2017-08-31
申请号：US15511267
申请日：2014-09-15
Applicant: Analogic Corporation
Inventor： Basak Ulker Karbeyaz , Kevin Cheng , Charles Shaughnessy , David Rozas
CPC classification number: G06T5/002 , A61B6/5258 , G06T2207/10072 , G06T2207/10081
Abstract: Among other things, one or more techniques and/or systems are described for processing images yielded from an examination via radiation to reduce visible noise in the images. After an image is reconstructed, a noise contribution to the image (e.g., an amount of noise in the image) is estimated to determine a target noise contribution for the image. The target noise contribution for the image may vary based upon, among other things, dose of radiation, aspects or properties of an object being imaged, etc. The image is subsequently filtered using one or more filtering techniques to generate a filtered image, and a noise contribution to the filtered image is determined. When the noise contribution to the filtered image satisfies the target noise contribution (e.g., a sufficient amount of noise has been filtered out of the image), the filtered image is combined with the reconstructed image to generate a blended image.
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公开(公告)号：US20160313457A1
公开(公告)日：2016-10-27
申请号：US14693370
申请日：2015-04-22
Applicant: Analogic Corporation
Inventor： Douglas Abraham , David Rozas , Anton Deykoon
CPC classification number: G01T1/247 , A61B6/03 , A61B6/4241 , A61B6/5205 , G01T1/1642 , G01T1/17 , G01T1/2985
Abstract: Among other things, one or more techniques and/or systems are described for generating an output of a detector cell of a photon counting detector array. A counter block generates integration data and photon counting data associated with the photon counting detector array. Responsive to a number of detection events counted during a measurement interval (e.g., a view) not exceeding a first detection event count threshold, a first output may be generated based upon the photon counting data. Responsive to the number of detection events exceeding a second detection event count threshold, a second output may be generated based upon the integration data. Responsive to the number of detection events being between the first detection event count threshold and the second detection event count threshold, a blended output may be generated based upon the photon counting data and the integration data.
Abstract translation: 除其他之外，描述了一个或多个技术和/或系统，用于产生光子计数检测器阵列的检测器单元的输出。 计数器块产生与光子计数检测器阵列相关联的积分数据和光子计数数据。 响应于在不超过第一检测事件计数阈值的测量间隔（例如，视图）期间计数的多个检测事件，可以基于光子计数数据生成第一输出。 响应于超过第二检测事件计数阈值的检测事件的数量，可以基于积分数据生成第二输出。 响应于在第一检测事件计数阈值和第二检测事件计数阈值之间的检测事件的数量，可以基于光子计数数据和积分数据生成混合输出。
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公开(公告)号：US11163073B2
公开(公告)日：2021-11-02
申请号：US16129905
申请日：2018-09-13
Applicant: ANALOGIC CORPORATION
Inventor： Douglas Abraham , David Rozas
IPC: A61B6/00 , G01T1/17 , A61B6/03 , G01N23/046
Abstract: Among other things, one or more techniques and/or systems are described for creating virtual channels in an imaging modality. The imaging modality comprises a plurality of charge integrating channels. Information yielded from two or more charge integrating channels during a same or similar acquisition view may be combined to yield a virtual channel that represents a portion of the detection surface substantially equivalent to an area comprised by the two or more charge integrating channels. In one embodiment, within a same acquisition view, some virtual channels may comprise a different number of charge integrating channels than other virtual channels. Also, different sets of virtual channels may be created for a same acquisition view to produce different images from a single set of data, for example, where there may be overlap between virtual channels such that the same charge integrating channel is comprised in more than one virtual channel.
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公开(公告)号：US20200088891A1
公开(公告)日：2020-03-19
申请号：US16129905
申请日：2018-09-13
Applicant: ANALOGIC CORPORATION
Inventor： Douglas Abraham , David Rozas
IPC: G01T1/17 , G01N23/046 , A61B6/03 , A61B6/00
Abstract: Among other things, one or more techniques and/or systems are described for creating virtual channels in an imaging modality. The imaging modality comprises a plurality of charge integrating channels. Information yielded from two or more charge integrating channels during a same or similar acquisition view may be combined to yield a virtual channel that represents a portion of the detection surface substantially equivalent to an area comprised by the two or more charge integrating channels. In one embodiment, within a same acquisition view, some virtual channels may comprise a different number of charge integrating channels than other virtual channels. Also, different sets of virtual channels may be created for a same acquisition view to produce different images from a single set of data, for example, where there may be overlap between virtual channels such that the same charge integrating channel is comprised in more than one virtual channel.
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