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1. 发明申请

US20070058771A1 Systems and methods for filtering data in a medical imaging system 有权
标题翻译：用于过滤医学成像系统中的数据的系统和方法
公开(公告)号：US20070058771A1
公开(公告)日：2007-03-15
申请号：US11224413
申请日：2005-09-12
申请人： Ken Sauer , Charles Bouman , Jiang Hsieh , Jean-Baptiste Thibault
发明人： Ken Sauer , Charles Bouman , Jiang Hsieh , Jean-Baptiste Thibault
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G06T11/005
摘要： A method for filtering a measurement of density of an object is described. The method includes filtering the measurement of the density and preserving a local average of the measurement and additional measurements when performing the filtering.
摘要翻译：描述用于过滤物体密度测量的方法。该方法包括过滤密度的测量并保持测量的局部平均值和执行滤波时的附加测量。

2. 发明申请

US20070019777A1 Methods, apparatus, and software for reconstructing an image 有权
标题翻译：用于重建图像的方法，装置和软件
公开(公告)号：US20070019777A1
公开(公告)日：2007-01-25
申请号：US11185477
申请日：2005-07-20
申请人： Ken Sauer , Charles Bouman , Jiang Hsieh , Jean-Baptiste Thibault
发明人： Ken Sauer , Charles Bouman , Jiang Hsieh , Jean-Baptiste Thibault
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： A61B6/032 , A61B6/027 , G06T11/006 , G06T2211/424 , Y10S378/901
摘要： A method of reconstructing an image includes combining a two-dimensional forward projection function and a three-dimensional stabilizing function to generate an iterative reconstruction algorithm, and using the obtained iterative reconstruction algorithm to perform a multislice Computed Tomography (CT) reconstruction to generate an image.
摘要翻译：重建图像的方法包括组合二维向前投影函数和三维稳定函数以产生迭代重建算法，并且使用所获得的迭代重建算法来执行多层次计算机断层扫描（CT）重建以生成图像。

3. 发明申请

US20060104536A1 Methods, apparatus, and software to compensate for failed or degraded components 有权
标题翻译：方法，装置和软件来补偿失败或退化的组件
公开(公告)号：US20060104536A1
公开(公告)日：2006-05-18
申请号：US10990921
申请日：2004-11-17
申请人： Jiang Hsieh , Charles Bouman , Ken Sauer , Jean-Baptiste Thibault
发明人： Jiang Hsieh , Charles Bouman , Ken Sauer , Jean-Baptiste Thibault
IPC分类号： G06K9/40 , G06K9/00
CPC分类号： G06T7/0004 , A61B6/027
摘要： A method for improving images of an imaging system including a plurality of detector cells includes assigning a quality factor for each detector cell.
摘要翻译：一种用于改善包括多个检测器单元的成像系统的图像的方法包括分配每个检测器单元的品质因数。

4. 发明申请

US20060104410A1 Methods, apparatus, and software to facilitate iterative reconstruction of images 有权
标题翻译：方法，装置和软件，以促进图像的迭代重建
公开(公告)号：US20060104410A1
公开(公告)日：2006-05-18
申请号：US10991177
申请日：2004-11-17
申请人： Ken Sauer , Jean-Baptiste Thibault , Charles Bouman , Jiang Hsieh
发明人： Ken Sauer , Jean-Baptiste Thibault , Charles Bouman , Jiang Hsieh
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： A61B6/032 , G06T11/006 , G06T2211/424
摘要： A method of reconstructing an image includes performing an iterative CT X-ray image reconstruction using a model including a point spread function (PSF) to reconstruct an image.
摘要翻译：重建图像的方法包括使用包括点扩展函数（PSF）的模型来执行迭代CT X射线图像重建以重建图像。

5. 发明申请

US20060104409A1 Methods, apparatus, and software for reconstructing an image 有权
公开(公告)号：US20060104409A1
公开(公告)日：2006-05-18
申请号：US10991176
申请日：2004-11-17
申请人： Charles Bouman , Ken Sauer , Jiang Hsieh , Jean-Baptiste Thibault
发明人： Charles Bouman , Ken Sauer , Jiang Hsieh , Jean-Baptiste Thibault
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G06T11/005 , A61B6/027 , A61B6/032 , A61B6/4085 , Y10S378/901
摘要： A method of reconstructing an image includes substantially minimizing a cost function of the form x ^ = arg ⁢ ⁢ min x ⁢ { ∑ m = 0 M ⁢ ⁢ D m ⁡ ( y m , F m ⁡ ( x ) ) + S ⁡ ( x ) } , where {circumflex over (x)} is the value of x which achieves the minimum summation, ym is an integral projection, Fm(x) is an forward projection function, and S(x) is a stabilizing function, to obtain {circumflex over (x)}, and using the obtained {circumflex over (x)} to perform a multislice Computed Tomography (CT) reconstruction to generate an image.

6. 发明申请

US20060104408A1 Methods, apparatus, and software to facilitate computing the elements of a forward projection matrix 有权
标题翻译：方法，装置和软件，以便于计算前向投影矩阵的元素
公开(公告)号：US20060104408A1
公开(公告)日：2006-05-18
申请号：US10990795
申请日：2004-11-17
申请人： Jean-Baptiste Thibault , Ken Sauer , Charles Bouman , Jiang Hsieh
发明人： Jean-Baptiste Thibault , Ken Sauer , Charles Bouman , Jiang Hsieh
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G06T11/006 , A61B6/027 , A61B6/032 , A61B6/4085 , G06T2211/424 , Y10S378/901
摘要： A method for calculating an element of a projection includes calculating an element Ai,j of a projection matrix using at least two different rays through a voxel.
摘要翻译：用于计算投影的元素的方法包括使用通过体素的至少两个不同的光线来计算投影矩阵的元素A i，j i。

7. 发明申请

US20070116343A1 Methods and systems for improving quality of an image 有权
标题翻译：提高图像质量的方法和系统
公开(公告)号：US20070116343A1
公开(公告)日：2007-05-24
申请号：US11284448
申请日：2005-11-22
申请人： Ken Sauer , Charles Bouman , Jiang Hsieh , Jean-Baptiste Thibault
发明人： Ken Sauer , Charles Bouman , Jiang Hsieh , Jean-Baptiste Thibault
IPC分类号： G06K9/00 , G06K9/40
CPC分类号： G06T5/50 , A61B6/032 , A61B6/4085 , G06T7/11 , G06T2207/10081 , G06T2207/20012 , G06T2207/20221 , G06T2207/30004
摘要： A method for improving quality of an image is described. The method includes reconstructing a first image of a sample volume, segmenting the first image to generate a first region and a second region, reconstructing a second image of the sample volume, and generating a final image from a combination of the segmentation, the first image, and the second image.
摘要翻译：描述了一种用于提高图像质量的方法。该方法包括重建样本体积的第一图像，分割第一图像以生成第一区域和第二区域，重建样本体积的第二图像，以及从分割的组合生成最终图像，第一图像，和第二个图像。

8. 发明授权

US06768782B1 Iterative method for region-of-interest reconstruction 有权
标题翻译：用于重建区域的迭代法
公开(公告)号：US06768782B1
公开(公告)日：2004-07-27
申请号：US10319689
申请日：2002-12-16
申请人： Jiang Hsieh , Jean-Baptiste Thibault , Charles A. Bouman , Ken Sauer
发明人： Jiang Hsieh , Jean-Baptiste Thibault , Charles A. Bouman , Ken Sauer
IPC分类号： A61B603
CPC分类号： A61B6/032 , A61B6/4085 , A61B6/469 , Y10S378/901
摘要： An imaging system is provided including a source generating an x-ray beam and a detector array receiving the x-ray beam and generating projection data corresponding to at least a scanned portion of an object. An image reconstructor is electrically coupled to said detector array and reconstructs an image of the scanned portion of the object for a full field-of-view in response to said projection data using a dual iterative reconstruction technique. The dual iterative reconstruction technique includes reconstructing the full field-of-view using a first resolution and reconstructing a region-of-interest within the full FOV using a second resolution. A method is also provided for reconstructing an image using projection data from such an imaging system.
摘要翻译：提供了一种成像系统，包括产生x射线束的源和接收x射线束的检测器阵列，并且产生与至少对象的扫描部分对应的投影数据。图像重构器电耦合到所述检测器阵列，并且使用双重迭代重建技术来响应于所述投影数据重建对象的扫描部分的图像以获得完整的视野。双重迭代重建技术包括使用第一分辨率重构全视野并且使用第二分辨率来重构全FOV内的感兴趣区域。还提供了一种用于使用来自这种成像系统的投影数据来重建图像的方法。

9. 发明授权

US06907102B1 Iterative reconstruction methods for multi-slice computed tomography 有权
标题翻译：多层计算机断层扫描的迭代重建方法
公开(公告)号：US06907102B1
公开(公告)日：2005-06-14
申请号：US10319674
申请日：2002-12-16
申请人： Ken Sauer , Charles A. Bouman , Jean-Baptiste Thibault , Jiang Hsieh
发明人： Ken Sauer , Charles A. Bouman , Jean-Baptiste Thibault , Jiang Hsieh
IPC分类号： A61B6/03 , G06T11/00 , A61B6/00
CPC分类号： G06T11/006 , A61B6/027 , A61B6/032 , A61B6/4085 , G06T2211/424 , Y10S378/901
摘要： A multi-slice computed tomography imaging system is provided including a source that generates an x-ray beam and a detector array that receives the x-ray beam and generates projection data. A translatable table has an object thereon and is operable to translate in relation to the source and the detector array. The source and the detector array rotate about the translatable table to helically scan the object. An image reconstructor is electrically coupled to the detector array and reconstructs an image in response to the projection data using a computed tomography modeled iterative reconstruction technique. The iterative reconstruction technique includes determining a cross-section reconstruction vector, which approximately matches the projection data via a computed tomography model. Methods for performing the same are also provided including accounting for extended boundary regions.
摘要翻译：提供了一种多切片计算机断层摄影成像系统，其包括产生X射线束的源和接收X射线束并产生投影数据的检测器阵列。一个可翻译的桌子上有一个物体，它可以相对于源和检测器阵列进行平移。源和检测器阵列绕可翻译表旋转以螺旋扫描对象。图像重构器电耦合到检测器阵列，并且使用计算机断层摄影建模的迭代重建技术来响应于投影数据重建图像。迭代重建技术包括确定通过计算机断层摄影模型近似匹配投影数据的横截面重建矢量。还提供了用于执行该方法的方法，包括扩展边界区域的计算。

10. 发明授权

US09020230B2 Method and apparatus for iterative reconstruction 有权
标题翻译：迭代重建的方法和装置
公开(公告)号：US09020230B2
公开(公告)日：2015-04-28
申请号：US13287589
申请日：2011-11-02
申请人： Zhou Yu , Evgeny Drapkin , Bruno Kristiaan Bernard De Man , Jean-Baptiste Thibault , Kai Zeng , Jiang Hsieh , Brian Edward Nett , Debashish Pal , Lin Fu , Guangzhi Cao , Charles A. Bouman, Jr. , Ken David Sauer
发明人： Zhou Yu , Evgeny Drapkin , Bruno Kristiaan Bernard De Man , Jean-Baptiste Thibault , Kai Zeng , Jiang Hsieh , Brian Edward Nett , Debashish Pal , Lin Fu , Guangzhi Cao , Charles A. Bouman, Jr. , Ken David Sauer
IPC分类号： G06T11/00
CPC分类号： G06T11/006 , G06T2211/424 , G06T2211/428
摘要： A method for reconstructing an image of an object that includes a plurality of image elements. The method includes accessing image data associated with a plurality of image elements, and reconstructing an image of the object by optimizing an objective function, where the objective function is optimized by iteratively solving a nested sequence of approximate optimization problems. The algorithm is composed of nested iterative loops, in which an inner loop iteratively optimizes an objective function approximating the outer loop objective function, and an outer loop that utilizes the solution of the inner loop to optimize the original objective function.
摘要翻译：一种用于重构包括多个图像元素的对象的图像的方法。该方法包括访问与多个图像元素相关联的图像数据，以及通过优化目标函数来重构对象的图像，其中通过迭代地求解近似优化问题的嵌套序列来优化目标函数。该算法由嵌套迭代循环组成，其中内循环迭代地优化近似外循环目标函数的目标函数，以及利用内循环的解来优化原始目标函数的外循环。

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