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1. 发明授权

US07310436B2 Systems, methods and apparatus for specialized filtered back-projection reconstruction for digital tomosynthesis 有权
标题翻译：用于数字断层合成的专门滤波反投影重建的系统，方法和装置
公开(公告)号：US07310436B2
公开(公告)日：2007-12-18
申请号：US10859423
申请日：2004-06-01
申请人： Baojun Li , Steven W. Metz , John Michael Sabol , Gopal B. Avinash , Jiang Hsieh
发明人： Baojun Li , Steven W. Metz , John Michael Sabol , Gopal B. Avinash , Jiang Hsieh
IPC分类号： G06K9/00
CPC分类号： G06T11/005 , G06T2211/424 , G06T2211/436
摘要： Systems, methods and apparatus are provided through which in one aspect, a three-dimensional (3D) image of an object is constructed from a plurality of two-dimensional (2D) images of the object using a specialized filter. The specialized filter implements a linear ramp function, a windowing function, and/or a polynomial function. The 3D image is back-projected from the filtered two-dimensional images, yielding a 3D image that has improved visual distinction of overlapping anatomic structures and reduced blurring.
摘要翻译：提供了一种系统，方法和装置，通过该系统，方法和装置，在一个方面，使用专用滤波器从对象的多个二维（2D）图像构建对象的三维（3D）图像。专用滤波器实现线性斜坡函数，加窗函数和/或多项式函数。 3D图像从经滤波的二维图像中反投影，产生3D图像，其改善了重叠解剖结构的视觉区别并减少了模糊。

2. 发明授权

US07457451B2 Systems, methods and apparatus for specialized filtered back-projection reconstruction for digital tomosynthesis 有权
标题翻译：用于数字断层合成的专门滤波反投影重建的系统，方法和装置
公开(公告)号：US07457451B2
公开(公告)日：2008-11-25
申请号：US11950418
申请日：2007-12-04
申请人： Jiang Hsieh , Stephen W. Metz , Gopal B. Avinash , Baojun Li , John Michael Sabol
发明人： Jiang Hsieh , Stephen W. Metz , Gopal B. Avinash , Baojun Li , John Michael Sabol
IPC分类号： G06K9/00 , G01N23/223
CPC分类号： G06T11/005 , G06T2211/424 , G06T2211/436
摘要： Systems, methods and apparatus are provided through which in one aspect, a three-dimensional (3D) image of an object is constructed from a plurality of two-dimensional (2D) images of the object using a specialized filter. In some embodiments, the specialized filter implements a linear ramp function, a windowing function, and/or a polynomial function. In some embodiments, the 3D image is back-projected from the filtered two-dimensional images, yielding a 3D image that has improved visual distinction of overlapping anatomic structures and reduced blurring.
摘要翻译：提供了一种系统，方法和装置，通过该系统，方法和装置，在一个方面，使用专用滤波器从对象的多个二维（2D）图像构建对象的三维（3D）图像。在一些实施例中，专用滤波器实现线性斜坡函数，加窗函数和/或多项式函数。在一些实施例中，3D图像从经过滤的二维图像反投影，产生3D重建解剖结构改善的视觉区别并减少模糊。

3. 发明授权

US06980624B2 Non-uniform view weighting tomosynthesis method and apparatus 有权
公开(公告)号：US06980624B2
公开(公告)日：2005-12-27
申请号：US10723034
申请日：2003-11-26
申请人： Baojun Li , Bernhard Erich Hermann Claus , Gopal B. Avinash , Stephen W. Metz , Jiang Hsieh
发明人： Baojun Li , Bernhard Erich Hermann Claus , Gopal B. Avinash , Stephen W. Metz , Jiang Hsieh
IPC分类号： A61B6/02 , A61B6/03 , G06T11/00
CPC分类号： A61B6/025 , G06F19/00 , G06T11/005 , G06T2211/436
摘要： A technique is provided for non-uniform weighting in back-projection calculations in tomosythesis. The non-uniform weighting may include weighting based on a count map of the number of times pixels of individual slices are traversed by radiation in different projections. Weighting may also include non-uniform functions for contributions of features at different slice level to the sensed X-ray attenuation system response inconsistencies are accounted for by further weighting based upon projection maps which may be created in separate system calibration or configuration routines.

4. 发明授权

US06687329B1 Computer aided acquisition of medical images 有权
标题翻译：计算机辅助获取医学图像
公开(公告)号：US06687329B1
公开(公告)日：2004-02-03
申请号：US10439103
申请日：2003-05-15
申请人： Jiang Hsieh , Gopal B. Avinash , Cherik Bulkes , John M. Sabol
发明人： Jiang Hsieh , Gopal B. Avinash , Cherik Bulkes , John M. Sabol
IPC分类号： A61B600
CPC分类号： A61B6/542 , A61B6/032 , A61B6/5235 , A61B6/5247 , A61B6/545 , G06F19/00 , G06T7/0012 , Y10S378/901
摘要： The invention provides a technique for acquiring subsequent image data in a medical diagnostic context based upon analysis of initial image data. The initial image data is processed via a computer aided diagnosis algorithm to determine whether additional image data acquisition is appropriate. Subsequent acquisition processes may be performed on the same imaging system from which the initial image data originated, or a different imaging system. The imaging systems may also be of different modalities. The subsequent acquisition of image data may be performed automatically without operator intervention, or the prescribed subsequent acquisition sequence may be outputted by the system for execution upon command of an operator.
摘要翻译：本发明提供一种基于初始图像数据的分析在医疗诊断上下文中获取后续图像数据的技术。通过计算机辅助诊断算法处理初始图像数据，以确定附加图像数据采集是否合适。随后的采集过程可以在与其起始的图像数据相同的成像系统或不同的成像系统上执行。成像系统也可以是不同的模式。图像数据的后续采集可以在没有操作员干预的情况下自动执行，或者可以由系统输出规定的后续采集序列，以便在操作者的命令时执行。

5. 发明授权

US07756312B2 Methods and apparatus for noise estimation 有权
标题翻译：用于噪声估计的方法和装置
公开(公告)号：US07756312B2
公开(公告)日：2010-07-13
申请号：US11551109
申请日：2006-10-19
申请人： Jiang Hsieh , Michael Joseph Washburn , Erik Normann Steen , Gopal B. Avinash
发明人： Jiang Hsieh , Michael Joseph Washburn , Erik Normann Steen , Gopal B. Avinash
IPC分类号： G06K9/00 , A61B6/00
CPC分类号： G06T7/0002 , A61B6/508 , A61B6/5258 , A61B6/583 , G06T11/008 , G06T2207/30168
摘要： The method includes estimating a noise level in a reconstructed image using a total attenuation of the reconstructed image.
摘要翻译：该方法包括使用重构图像的总衰减来估计重建图像中的噪声电平。

6. 发明申请

US20080095462A1 Methods and Apparatus for Noise Estimation 有权
标题翻译：噪声估计方法与装置
公开(公告)号：US20080095462A1
公开(公告)日：2008-04-24
申请号：US11551109
申请日：2006-10-19
申请人： Jiang Hsieh , Michael Joseph Washburn , Erik Normann Steen , Gopal B. Avinash
发明人： Jiang Hsieh , Michael Joseph Washburn , Erik Normann Steen , Gopal B. Avinash
IPC分类号： G06K9/00 , G06K9/40
CPC分类号： G06T7/0002 , A61B6/508 , A61B6/5258 , A61B6/583 , G06T11/008 , G06T2207/30168
摘要： The method includes estimating a noise level in a reconstructed image using a total attenuation of the reconstructed image.
摘要翻译：该方法包括使用重构图像的总衰减来估计重建图像中的噪声电平。

7. 发明授权

US06574304B1 Computer aided acquisition of medical images 有权
标题翻译：计算机辅助获取医学图像
公开(公告)号：US06574304B1
公开(公告)日：2003-06-03
申请号：US10242975
申请日：2002-09-13
申请人： Jiang Hsieh , Gopal B. Avinash , Cherik Bulkes , John M. Sabol
发明人： Jiang Hsieh , Gopal B. Avinash , Cherik Bulkes , John M. Sabol
IPC分类号： A61B600
CPC分类号： A61B6/542 , A61B6/032 , A61B6/5235 , A61B6/5247 , A61B6/545 , G06F19/00 , G06T7/0012 , Y10S378/901
摘要： The invention provides a technique for acquiring subsequent image data in a medical diagnostic context based upon analysis of initial image data. The initial image data is processed via a computer aided diagnosis algorithm to determine whether additional image data acquisition is appropriate. Subsequent acquisition processes may be performed on the same imaging system from which the initial image data originated, or a different imaging system. The imaging systems may also be of different modalities. The subsequent acquisition of image data may be performed automatically without operator intervention, or the prescribed subsequent acquisition sequence may be outputted by the system for execution upon command of an operator.
摘要翻译：本发明提供一种基于初始图像数据的分析在医疗诊断上下文中获取后续图像数据的技术。通过计算机辅助诊断算法处理初始图像数据，以确定附加图像数据采集是否合适。随后的采集过程可以在与其起始的图像数据相同的成像系统或不同的成像系统上执行。成像系统也可以是不同的模式。图像数据的后续采集可以在没有操作者干预的情况下自动执行，或者可以由系统输出规定的后续采集序列，以便在操作者的命令下执行。

8. 发明授权

US07072435B2 Methods and apparatus for anomaly detection 有权
标题翻译：异常检测方法与装置
公开(公告)号：US07072435B2
公开(公告)日：2006-07-04
申请号：US10766362
申请日：2004-01-28
申请人： Stephen W. Metz , Carson Hale Thomas , Gopal B. Avinash , Jiang Hsieh
发明人： Stephen W. Metz , Carson Hale Thomas , Gopal B. Avinash , Jiang Hsieh
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/488 , Y10S378/901
摘要： A method for detecting an anomaly includes performing a computed tomography (CT) scout scan to obtain data, and supplying the obtained data to a radiographic computer aided detection (CAD) algorithm.
摘要翻译：用于检测异常的方法包括执行计算机断层摄影（CT）侦察扫描以获得数据，并将获得的数据提供给射线照相计算机辅助检测（CAD）算法。

9. 发明申请

US20110116700A1 ADAPTIVE GRADIENT WEIGHTING TECHNIQUE FOR DETECTOR BAD CELL CORRECTION 有权
标题翻译：用于检测器BAD细胞校正的自适应梯度称重技术
公开(公告)号：US20110116700A1
公开(公告)日：2011-05-19
申请号：US13009584
申请日：2011-01-19
申请人： Baojun Li , Jiang Hsieh
发明人： Baojun Li , Jiang Hsieh
IPC分类号： G06K9/00 , G06F19/00
CPC分类号： G01T1/2985
摘要： An imaging system includes a two-dimensional detector having a plurality of cells wherein each cell is configured to detect energy or signal passing through an object. The imaging system includes a computer programmed to acquire imaging data for the plurality of cells, identify a cell to be corrected, based on the imaging data, interpolate Ix and Iy for the identified cell based on neighbor cells, and calculate local gradients gx and gy between the identified cell and its neighbor cells based on the interpolation. The computer is further programmed to calculate weighting factors wx and wy based on the local gradients, calculate a corrected final value I(0,0) for the identified cell, and correct the identified cell with the corrected final value.
摘要翻译：成像系统包括具有多个单元的二维检测器，其中每个单元被配置为检测通过物体的能量或信号。成像系统包括被编程为采集多个单元的成像数据的计算机，基于成像数据识别要校正的单元，基于相邻单元对所识别的单元插值Ix和Iy，并计算局部梯度gx和gy 基于内插，在所识别的小区及其相邻小区之间。计算机还被编程为基于局部梯度计算加权因子wx和wy，计算所识别的单元的校正后的最终值I（0,0），并用校正的最终值校正所识别的单元。

10. 发明申请

US20080107324A1 SYSTEMS, METHODS AND APPARATUS FOR SPECIALIZED FILTERED BACK-PROJECTION RECONSTRUCTION FOR DIGITAL TOMOSYNTHESIS 有权
标题翻译：用于数字化硅胶的专用过滤后置投影重建的系统，方法和装置
公开(公告)号：US20080107324A1
公开(公告)日：2008-05-08
申请号：US11950418
申请日：2007-12-04
申请人： Jiang Hsieh , Stephen Metz , Gopal Avinash , Baojun Li , John Sabol
发明人： Jiang Hsieh , Stephen Metz , Gopal Avinash , Baojun Li , John Sabol
IPC分类号： G06K9/00
CPC分类号： G06T11/005 , G06T2211/424 , G06T2211/436
摘要： Systems, methods and apparatus are provided through which in one aspect, a three-dimensional (3D) image of an object is constructed from a plurality of two-dimensional (2D) images of the object using a specialized filter. In some embodiments, the specialized filter implements a linear ramp function, a windowing function, and/or a polynomial function. In some embodiments, the 3D image is back-projected from the filtered two-dimensional images, yielding a 3D image that has improved visual distinction of overlapping anatomic structures and reduced blurring.
摘要翻译：提供了一种系统，方法和装置，通过该系统，方法和装置，在一个方面，使用专用滤波器从对象的多个二维（2D）图像构建对象的三维（3D）图像。在一些实施例中，专用滤波器实现线性斜坡函数，加窗函数和/或多项式函数。在一些实施例中，3D图像从经过滤的二维图像反投影，产生3D重建解剖结构改善的视觉区别并减少模糊。

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