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公开(公告)号：US09898678B2
公开(公告)日：2018-02-20
申请号：US15412618
申请日：2017-01-23
Applicant: Analogic Corporation
Inventor： Zhengrong Ying , Baoming Hong , Ram Naidu
CPC classification number: G06K9/34 , G01V5/0008 , G01V5/0016 , G01V5/0041 , G01V5/005 , G06K9/00771 , G06K9/342 , G06K9/6201 , G06K9/6267 , G06T7/10 , G06T7/11 , G06T15/20 , G06T2200/04 , G06T2219/004
Abstract: Representations of an object in an image generated by an imaging apparatus can comprise two or more separate sub-objects, producing a compound object. Compound objects can negatively affect the quality of object visualization and threat identification performance. As provided herein, a compound object can be separated into sub-objects. Three-dimensional image data of a potential compound object is projected into a two-dimensional manifold projection, and segmentation is performed on the two-dimensional manifold projection of the compound object to identify sub-objects. Once sub-objects are identified, the two-dimensional, segmented manifold projection is projected into three-dimensional space. A three-dimensional segmentation may then be performed to identify additional sub-objects of the compound object that were not identified by the two-dimensional segmentation.
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公开(公告)号：US20170132485A1
公开(公告)日：2017-05-11
申请号：US15412618
申请日：2017-01-23
Applicant: Analogic Corporation
Inventor： Zhengrong Ying , Baoming Hong , Ram Naidu
CPC classification number: G06K9/34 , G01V5/0008 , G01V5/0016 , G01V5/0041 , G01V5/005 , G06K9/00771 , G06K9/342 , G06K9/6201 , G06K9/6267 , G06T7/10 , G06T7/11 , G06T15/20 , G06T2200/04 , G06T2219/004
Abstract: Representations of an object in an image generated by an imaging apparatus can comprise two or more separate sub-objects, producing a compound object. Compound objects can negatively affect the quality of object visualization and threat identification performance. As provided herein, a compound object can be separated into sub-objects. Three-dimensional image data of a potential compound object is projected into a two-dimensional manifold projection, and segmentation is performed on the two-dimensional manifold projection of the compound object to identify sub-objects. Once sub-objects are identified, the two-dimensional, segmented manifold projection is projected into three-dimensional space. A three-dimensional segmentation may then be performed to identify additional sub-objects of the compound object that were not identified by the two-dimensional segmentation.
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公开(公告)号：US20150177165A1
公开(公告)日：2015-06-25
申请号：US14640710
申请日：2015-03-06
Applicant: Analogic Corporation
Inventor： Zhengrong Ying , Sergey Simanovsky , Ram Naidu , Sorin Marcovici
CPC classification number: G01N23/046 , A61B6/027 , A61B6/032 , A61B6/4007 , A61B6/4028 , A61B6/405 , A61B6/466 , A61B6/482 , G01N2223/419 , G01T7/08 , G01V5/005
Abstract: A CT scanning system may include a multi-pixel x-ray source, and a detector array. The multi-pixel x-ray source may have a plurality of pixels that are disposed along a z-axis, and that are sequentially activated so as to controllably emit x-rays in response to incident electrons. The detector array may have one or more rows of x-ray detectors that detect the x-rays that are emitted from the pixels and have traversed an object, and generate data for CT image reconstruction system. In third generation CT scanning systems, the number of detector rows may be reduced. Multi-pixel x-ray source implementation of saddle curve geometry may render a single rotation single organ scan feasible. Using a multi-pixel x-ray source in stationary CT scanning systems may allow x-ray beam design with a minimal coverage to satisfy mathematical requirements for reconstruction.
Abstract translation: CT扫描系统可以包括多像素x射线源和检测器阵列。 多像素x射线源可以具有沿着z轴设置的多个像素，并且被依次激活以响应入射电子可控地发射x射线。 检测器阵列可以具有一行或多行x射线检测器，其检测从像素发射并穿过物体的X射线，并生成CT图像重建系统的数据。 在第三代CT扫描系统中，可以减少检测器行的数量。 鞍形曲线几何的多像素x射线源实现可能使单次旋转单一器官扫描成为可能。 在固定CT扫描系统中使用多像素X射线源可以允许具有最小覆盖的x射线束设计以满足重建的数学要求。
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公开(公告)号：US09739724B2
公开(公告)日：2017-08-22
申请号：US14640710
申请日：2015-03-06
Applicant: Analogic Corporation
Inventor： Zhengrong Ying , Sergey Simanovsky , Ram Naidu , Sorin Marcovici
CPC classification number: G01N23/046 , A61B6/027 , A61B6/032 , A61B6/4007 , A61B6/4028 , A61B6/405 , A61B6/466 , A61B6/482 , G01N2223/419 , G01T7/08 , G01V5/005
Abstract: A CT scanning system may include a multi-pixel x-ray source, and a detector array. The multi-pixel x-ray source may have a plurality of pixels that are disposed along a z-axis, and that are sequentially activated so as to controllably emit x-rays in response to incident electrons. The detector array may have one or more rows of x-ray detectors that detect the x-rays that are emitted from the pixels and have traversed an object, and generate data for CT image reconstruction system. In third generation CT scanning systems, the number of detector rows may be reduced. Multi-pixel x-ray source implementation of saddle curve geometry may render a single rotation single organ scan feasible. Using a multi-pixel x-ray source in stationary CT scanning systems may allow x-ray beam design with a minimal coverage to satisfy mathematical requirements for reconstruction.
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