专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10902647B2 System for iteratively reconstructing computed tomography images through three domains 有权
公开(公告)号：US10902647B2
公开(公告)日：2021-01-26
申请号：US16270692
申请日：2019-02-08
申请人： Zhengrong Ying
发明人： Zhengrong Ying
IPC分类号： G06K9/00 , G06T11/00 , G01N23/046
摘要： A system for iteratively reconstructing computed tomography images through three domains is disclosed. The system comprises a raw domain processor, a projection domain processor, and an image domain processor. The system also comprises two iterative loops: one is through a raw synthesizer connecting the raw domain processor and the projection domain processor, and the other is through a projection synthesizer connecting the projection domain processor and the image domain processor respectively.

2. 发明申请

US20200258270A1 SYSTEM FOR ITERATIVELY RECONSTRUCTING COMPUTED TOMOGRAPHY IMAGES THROUGH THREE DOMAINS 审中-公开
公开(公告)号：US20200258270A1
公开(公告)日：2020-08-13
申请号：US16270692
申请日：2019-02-08
申请人： Zhengrong Ying
发明人： Zhengrong Ying
IPC分类号： G06T11/00 , G01N23/046
摘要： A system for iteratively reconstructing computed tomography images through three domains is disclosed. The system comprises a raw domain processor, a projection domain processor, and an image domain processor. The system also comprises two iterative loops: one is through a raw synthesizer connecting the raw domain processor and the projection domain processor, and the other is through a projection synthesizer connecting the projection domain processor and the image domain processor respectively.

3. 发明授权

US09835733B2 Apparatus for detecting X-rays 有权
公开(公告)号：US09835733B2
公开(公告)日：2017-12-05
申请号：US14700178
申请日：2015-04-30
申请人： Zhengrong Ying
发明人： Zhengrong Ying
IPC分类号： G01T1/20
CPC分类号： G01T1/2018 , G01N2223/419 , G01N2223/505 , G01T1/2002
摘要： An apparatus for detecting X-rays and converting the detected X-ray intensities into digital signals is disclosed. The apparatus places Analog to Digital Conversion (ADC) chips directly under a scintillator array along the X-ray beam direction and uses a shield that is placed between a photodiode substrate and an Analog to Digital Conversion (ADC) chip to block X-rays from directly reaching the dies of the ADC chips, which are sensitive to X-rays. Also an X-ray CT system utilizing the disclosed apparatus for detecting X-rays is provided.

4. 发明授权

US09285327B2 Adjustable photon detection systems for multi-slice X-ray computed tomography systems 有权
标题翻译：用于多层X射线计算机断层摄影系统的可调光子检测系统
公开(公告)号：US09285327B2
公开(公告)日：2016-03-15
申请号：US13760127
申请日：2013-02-06
申请人： Zhengrong Ying
发明人： Zhengrong Ying
IPC分类号： A61B6/03 , G01N23/04 , G01T1/29 , A61B6/00
CPC分类号： G01N23/046 , A61B6/032 , A61B6/4085 , A61B6/4233 , A61B6/4291 , A61B6/5258 , A61B6/585 , G01N2223/419 , G01T1/2985
摘要： An Adjustable Photon Detection System (APDS) for multi-slice X-ray CT systems and a multi-slice X-ray CT system using the APDS are disclosed; wherein the APDS can be adjusted to be aligned to different X-ray source positions; wherein the multi-slice X-ray CT system comprises one or more X-ray sources, and one or more APDS; wherein the multi-slice X-ray CT system may also include a detector position calculator for calculating effective detector positions and a detector position corrector for correcting projection data using calculated effective detector positions.
摘要翻译：公开了一种用于多切片X射线CT系统的可调光子检测系统（APDS）和使用APDS的多切片X射线CT系统; 其中可以将APDS调整为与不同X射线源位置对准; 其中所述多切片X射线CT系统包括一个或多个X射线源和一个或多个APDS; 其中所述多切片X射线CT系统还可以包括用于计算有效检测器位置的检测器位置计算器和用于使用计算的有效检测器位置校正投影数据的检测器位置校正器。

5. 发明申请

US20140355734A1 ANTI-SCATTER COLLIMATORS FOR DETECTOR SYSTEMS OF MULTI-SLICE X-RAY COMPUTED TOMOGRAPHY SYSTEMS 审中-公开
标题翻译：用于多片X射线计算机图像系统的检测器系统的抗散射器
公开(公告)号：US20140355734A1
公开(公告)日：2014-12-04
申请号：US13908897
申请日：2013-06-03
申请人： Zhengrong YING
发明人： Zhengrong YING
IPC分类号： G21K1/02
CPC分类号： G21K1/025 , A61B6/032 , A61B6/4291 , G01T1/1648
摘要： A detector system for multi-slice X-ray Computed Tomography (CT) system is disclosed. The detector system comprises a plurality of X-ray detector modules for detecting X-ray photons; wherein each detector module is divided into individual detector elements organized in a matrix fashion with element rows (z-axis for row direction) and element columns (x-axis for column direction) for detecting X-ray photons; wherein the individual detector elements are interspaced by gaps (areas that do not detect radiation), which are also organized in a matrix fashion with gap rows and gap columns; and an anti-scatter collimator comprising a plurality of anti-scatter plates, which is placed above the detector modules and aligned to focus on an X-ray source of the CT system; wherein some or all of the anti-scatter plates are placed above the detector elements; wherein those anti-scatter plates that are placed above the detector elements block a portion of primary X-ray photons from the X-ray source in addition to scattered X-ray photons from reaching the detector elements.
摘要翻译：公开了一种用于多层X射线计算机断层扫描（CT）系统的检测器系统。检测器系统包括用于检测X射线光子的多个X射线检测器模块; 其中每个检测器模块被分成以元素行（用于行方向的z轴）和用于检测X射线光子的元件列（x轴用于列方向）的矩阵方式组织的单独检测器元件; 其中各个检测器元件通过间隙（不检测辐射的区域）间隔开，其也以带有间隙行和间隙列的矩阵方式组织; 以及包括多个防散射板的防散射准直器，其被放置在检测器模块上方并对准以聚焦在CT系统的X射线源上; 其中一些或全部防散射板放置在检测器元件上方; 其中放置在检测器元件上方的那些防散射板除了散射的X射线光子到达检测器元件之外还阻挡来自X射线源的一部分主要X射线光子。

6. 发明授权

US08885938B2 Detecting concealed threats 有权
标题翻译：检测隐藏的威胁
公开(公告)号：US08885938B2
公开(公告)日：2014-11-11
申请号：US13126622
申请日：2008-10-30
申请人： Baoming Hong , Julia Pavlovich , David Schafer , Zhengrong Ying
发明人： Baoming Hong , Julia Pavlovich , David Schafer , Zhengrong Ying
IPC分类号： G06K9/34 , G06K9/00 , G01N23/04 , G06K9/62
CPC分类号： G06K9/00771 , G06K9/6247 , G06K2209/09
摘要： Potential threat items may be concealed inside objects, such as portable electronic devices, that are subject to imaging for example, at a security checkpoint. Data from an imaged object can be compared to pre-determined object data to determine a class for the imaged object. Further, an object can be identified inside a container (e.g., a laptop inside luggage). One-dimensional Eigen projections can be used to partition the imaged object into partitions, and feature vectors from the partitions and the object image data can be used to generate layout feature vectors. One or more layout feature vectors can be compared to training data for threat versus non-threat-containing items from the imaged object's class to determine if the imaged object contains a potential threat item.
摘要翻译：潜在威胁物品可能隐藏在诸如便携式电子设备的物体内，例如在安全检查点进行成像。来自成像对象的数据可以与预定对象数据进行比较，以确定成像对象的类。此外，可以在容器（例如，行李箱内的膝上型计算机）内识别物体。可以使用一维特征投影来将成像对象分割成分区，并且来自分区和对象图像数据的特征向量可用于生成布局特征向量。可以将一个或多个布局特征向量与来自成像对象的类的威胁与不含威胁的项目的训练数据进行比较，以确定成像对象是否包含潜在的威胁项目。

7. 发明申请

US20110227910A1 METHOD OF AND SYSTEM FOR THREE-DIMENSIONAL WORKSTATION FOR SECURITY AND MEDICAL APPLICATIONS 审中-公开
标题翻译：用于安全和医疗应用的三维工作站的方法和系统
公开(公告)号：US20110227910A1
公开(公告)日：2011-09-22
申请号：US12934945
申请日：2008-03-27
申请人： Zhengrong Ying , Daniel Abenaim
发明人： Zhengrong Ying , Daniel Abenaim
IPC分类号： G06T15/00 , G09G5/02
CPC分类号： A61B6/482 , A61B5/055 , A61B6/032 , A61B6/466 , A61B8/00 , G01V5/0058 , G06T7/12 , G06T11/001 , G06T2207/10072 , G06T2207/20192 , H04N13/10
摘要： A method of and a system for displaying volumetric data on a 2D or 3D display are provided. In particular, a method of highlighting objects using contours of selected objects on a 2D display and on a 3D stereoscopic display is provided. The contour highlighting method provides users an attention cue of highlighted objects while preserves the details of objects to be observed. The applications of the 3D display workstation for security luggage screening and for medical diagnosis and surgical planning are also provided.
摘要翻译：提供了一种用于在2D或3D显示器上显示体数据的方法和系统。特别地，提供了使用2D显示器和3D立体显示器上的所选对象的轮廓来突出显示对象的方法。轮廓突出显示方法为用户提供突出显示的对象的注意力提示，同时保留要观察的对象的细节。还提供了用于安全行李检查和医疗诊断和外科手术计划的3D显示工作站的应用。

8. 发明授权

US07724866B2 Method of and system for variable pitch computed tomography scanning for baggage screening 失效
标题翻译：可变间距计算机断层扫描扫描行李的方法和系统
公开(公告)号：US07724866B2
公开(公告)日：2010-05-25
申请号：US11769370
申请日：2007-06-27
申请人： Ram Naidu , Basak Ulker Karbeyaz , Zhengrong Ying , Sergey Simanovsky , Matthew Hirsch , David Schafer , Carl R. Crawford
发明人： Ram Naidu , Basak Ulker Karbeyaz , Zhengrong Ying , Sergey Simanovsky , Matthew Hirsch , David Schafer , Carl R. Crawford
IPC分类号： A61B6/03
CPC分类号： G01V5/005 , A61B6/027 , G01T1/2985
摘要： A method of and a system for variable pitch CT scanning for baggage screening and variable pitch image reconstruction are disclosed. The method comprises decelerating conveyor belt speed when additional time is needed to render a decision on a complex bag; accelerating conveyor belt speed to its normal speed when decisions are reached on undecided bags; generating cone-beam projection data at variable scanning pitch corresponding to variable conveyor belt speed; computing a tilt angle and a distance offset for each tilted slice using the pitch values at which the cone-beam projection data is acquired for that tilted slice; generating fan-beam projection data for each tilted slice using the tilted angle and the distance offset; generating correction projection data to compensate for the error between the source trajectory and the tilted reconstruction plane; generating the corrected fan-beam projection data by adding the correction projection data to the fan-beam projection data; reconstructing tilted slices using the corrected fan-beam projection data; and interpolating the reconstructed tilted slices into axial slices.
摘要翻译：公开了用于行李筛选和可变间距图像重构的可变间距CT扫描的方法和系统。该方法包括在需要额外的时间来对复杂袋子做出决定时减速输送带速度; 加速输送带速度达到正常速度，在未定的袋子上达成决定; 产生对应于可变输送带速度的可变扫描间距的锥形束投影数据; 使用对于该倾斜切片获取锥形束投影数据的间距值来计算每个倾斜切片的倾斜角和距离偏移; 使用倾斜角度和距离偏移量为每个倾斜切片生成扇形投影数据; 产生校正投影数据以补偿源轨迹和倾斜重建平面之间的误差; 通过将校正投影数据添加到扇形投影数据来生成校正的扇形投影数据; 使用校正的扇形束投影数据重建倾斜的切片; 并将重构的倾斜切片内插到轴向切片中。

9. 发明授权

US07474786B2 Method of and system for classifying objects using histogram segment features of multi-energy computed tomography images 有权
标题翻译：使用多能计算机断层摄影图像的直方图段特征对物体进行分类的方法和系统
公开(公告)号：US07474786B2
公开(公告)日：2009-01-06
申请号：US11198360
申请日：2005-08-04
申请人： Ram Naidu , Zhengrong Ying , Sergey Simanovsky , Matthew Hirsch , Carl R. Crawford
发明人： Ram Naidu , Zhengrong Ying , Sergey Simanovsky , Matthew Hirsch , Carl R. Crawford
IPC分类号： G06K9/00
CPC分类号： G01V5/0008
摘要： A method of and a system for identifying objects using histogram segment features from multi-energy CT images are provided. The multi-energy CT images include a CT image, which approximates density measurements of scanned objects, and a Z image, which approximates effective atomic number measurements of scanned objects. The method comprises: computing a density histogram for each potential threat object; smoothing the density histogram using a low-pass filter; identifying peaks in the smoothed density histogram; assigning a segment to each peak; computing histogram segment features for each segment; classifying each potential threat object into a threat or a non-threat using computed features.
摘要翻译：提供了一种用于使用来自多能CT图像的直方图段特征来识别对象的方法和系统。多能CT图像包括近似于扫描对象的密度测量的CT图像和近似有效的扫描对象原子数测量的Z图像。该方法包括：计算每个潜在威胁对象的密度直方图; 使用低通滤波器平滑密度直方图; 识别平滑密度直方图中的峰值; 为每个峰分配一个段; 计算每个段的直方图段特征; 使用计算特征将每个潜在的威胁对象分类为威胁或非威胁。

10. 发明授权

US07388983B2 Method of and system for detecting anomalies in projection images generated by computed tomography scanners 有权
标题翻译：用于检测由计算机断层扫描仪产生的投影图像异常的方法和系统
公开(公告)号：US07388983B2
公开(公告)日：2008-06-17
申请号：US10920635
申请日：2004-08-18
申请人： Anton Deykoon , Zhengrong Ying , Carl R. Crawford
发明人： Anton Deykoon , Zhengrong Ying , Carl R. Crawford
IPC分类号： G06K9/00 , H05G1/60 , A61B6/00
CPC分类号： G01V5/005 , G01T1/2985 , G06T11/005
摘要： A method of and a system for detecting anomalies in projection images generated by CT scanners are provided. One type of anomaly of particular interest is bright or/and dark dots in projection images, which correspond to streak artifacts in the CT images. The method for detecting such bright or/and dark dots in projection images comprises: generating projection images; computing a CFAR distance map; computing a preliminary dot map; generating dot histograms; and detecting bright dots or/and dark dots based on the generated histograms.
摘要翻译：提供了一种用于检测CT扫描仪产生的投影图像异常的方法和系统。特别感兴趣的一种类型的异常是投影图像中的亮点或/和暗点，其对应于CT图像中的条纹伪像。用于在投影图像中检测这些亮点或/和暗点的方法包括：产生投影图像; 计算CFAR距离图; 计算初步点图; 生成点直方图; 并且基于所生成的直方图来检测亮点或/和暗点。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式