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1. 发明授权

US07245755B1 Algorithm for image reconstruction and image noise analysis in computed tomography 失效
标题翻译：计算机断层扫描中的图像重建和图像噪声分析算法
公开(公告)号：US07245755B1
公开(公告)日：2007-07-17
申请号：US10616671
申请日：2003-07-10
申请人： Xiaochuan Pan , Lifeng Yu , Chien-Min Kao
发明人： Xiaochuan Pan , Lifeng Yu , Chien-Min Kao
IPC分类号： G06K9/00
CPC分类号： G06T11/005 , A61B6/027 , A61B6/583
摘要： A method and apparatus are provided for reconstructing a tomographic image from fan-beam or cone-beam data. The method includes the steps of collecting fan-beam or cone-beam data over an image space, converting the fan-beam or cone-beam data to parallel-beam data with respect to a rotation angle within the image space, performing a shift variant filtration of the parallel-beam data within the image space and converting the processed data to images through backprojection or other means.
摘要翻译：提供了一种用于从扇形束或锥形束数据重建断层图像的方法和装置。该方法包括以下步骤：在图像空间上收集扇形束或锥形束数据，将扇形束或锥形束数据相对于图像空间内的旋转角度转换为平行光束数据，执行偏移变化过滤图像空间内的平行光束数据，并通过反投影或其他方式将处理后的数据转换为图像。

2. 发明授权

US06272200B1 Fourier and spline-based reconstruction of helical CT images 失效
标题翻译：螺旋CT图像的傅里叶和样条基重建
公开(公告)号：US06272200B1
公开(公告)日：2001-08-07
申请号：US09362484
申请日：1999-07-28
申请人： Xiaochuan Pan , Patrick Jean La Riviere
发明人： Xiaochuan Pan , Patrick Jean La Riviere
IPC分类号： A61B603
CPC分类号： G06T11/005 , A61B6/027 , A61B6/583 , Y10S378/901
摘要： A method and apparatus are provided for reconstructing a set of CT images from helical CT data. The method includes the steps of receiving the helical CT data and generating a set of fan-beam sinograms at equally spaced longitudinal positions. The method further includes the steps of estimating a set of parallel-beam sinograms from the generated set of fan-beam sinograms and reconstructing the CT images using a parallel beam reconstruction algorithm.
摘要翻译：提供了一种用于从螺旋CT数据重建一组CT图像的方法和装置。该方法包括以下步骤：接收螺旋CT数据并在等间隔的纵向位置产生一组扇形光束正弦图。该方法还包括以下步骤：从所生成的扇形光束正弦图集合估计一组平行束正弦图，并使用平行束重构算法重构CT图像。

3. 发明申请

US20110170757A1 Imaging System 有权
标题翻译：成像系统
公开(公告)号：US20110170757A1
公开(公告)日：2011-07-14
申请号：US12930856
申请日：2011-01-19
申请人： Xiaochuan Pan , Yu Zou , Lifeng Yu , Chien-Min Kao , Martin King , Maryellen Giger , Dan Xia , Howard Halpern , Charles Pelizzari , Emil Y. Sidky , Seungryong Cho
发明人： Xiaochuan Pan , Yu Zou , Lifeng Yu , Chien-Min Kao , Martin King , Maryellen Giger , Dan Xia , Howard Halpern , Charles Pelizzari , Emil Y. Sidky , Seungryong Cho
IPC分类号： G06K9/00
CPC分类号： A61B6/5288 , A61B6/027 , A61B6/032 , A61B6/037 , A61B6/484 , A61B6/508 , A61B6/5264 , A61B6/583 , A61B6/587
摘要： A method and apparatus for reconstruction of a region of interest for an object is provided. The reconstruction of the object may be based on chords which may fill a part, all, or more than all of the region of interest. Using chords for reconstruction may allow for reducing data acquired and/or processing for reconstructing a substantially exact image of the ROI. Moreover, various methodologies may be used in reconstructing the image, such as backprojection-filtration, and modified filtration backprojection.
摘要翻译：提供了一种用于重建对象的感兴趣区域的方法和装置。对象的重建可以基于可以填充所有感兴趣区域的全部或全部的和弦。使用和弦进行重建可以允许减少获得的数据和/或用于重建ROI的基本上精确的图像的处理。此外，各种方法可用于重建图像，例如反投影过滤和修改过滤反投影。

4. 发明申请

US20090175562A1 Imaging system 审中-公开
标题翻译：成像系统
公开(公告)号：US20090175562A1
公开(公告)日：2009-07-09
申请号：US12288480
申请日：2008-10-21
申请人： Xiaochuan Pan , Yu Zou , Lifeng Yu , Chien-Min Kao , Martin King , Maryellen Giger , Dan Xia , Howard Halpern , Charles Pelizzari , Emil Y. Sidky , Seungryong Cho
发明人： Xiaochuan Pan , Yu Zou , Lifeng Yu , Chien-Min Kao , Martin King , Maryellen Giger , Dan Xia , Howard Halpern , Charles Pelizzari , Emil Y. Sidky , Seungryong Cho
IPC分类号： G06K9/20
CPC分类号： A61B6/5288 , A61B6/027 , A61B6/032 , A61B6/037 , A61B6/484 , A61B6/508 , A61B6/5264 , A61B6/583 , A61B6/587
摘要： A method and apparatus for reconstruction of a region of interest for an object is provided. The reconstruction of the object may be based on chords which may fill a part, all, or more than all of the region of interest. Using chords for reconstruction may allow for reducing data acquired and/or processing for reconstructing a substantially exact image of the ROI. Moreover, various methodologies may be used in reconstructing the image, such as backprojection-filtration, and modified filtration backprojection.
摘要翻译：提供了一种用于重建对象的感兴趣区域的方法和装置。对象的重建可以基于可以填充所有感兴趣区域的全部或全部的和弦。使用和弦进行重建可以允许减少获得的数据和/或用于重建ROI的基本上精确的图像的处理。此外，各种方法可用于重建图像，例如反投影过滤和修改过滤反投影。

5. 发明授权

US07444011B2 Imaging system performing substantially exact reconstruction and using non-traditional trajectories 有权
标题翻译：成像系统执行基本精确的重建和使用非传统轨迹
公开(公告)号：US07444011B2
公开(公告)日：2008-10-28
申请号：US11410594
申请日：2006-04-24
申请人： Xiaochuan Pan , Yu Zou , Lifeng Yu , Chien-Min Kao , Martin King , Maryellen Giger , Dan Xia , Howard Halpern , Charles Pelizzari , Emil Y. Sidky , Seungryong Cho
发明人： Xiaochuan Pan , Yu Zou , Lifeng Yu , Chien-Min Kao , Martin King , Maryellen Giger , Dan Xia , Howard Halpern , Charles Pelizzari , Emil Y. Sidky , Seungryong Cho
IPC分类号： G06K9/46
CPC分类号： G06T11/006 , A61B6/027 , A61B6/502 , A61B6/5288 , G06T2211/432 , G06T2211/436
摘要： A method and apparatus for reconstruction of a region of interest (ROI) for an object using an imaging system is provided. The imaging system may substantially exactly reconstruct the ROI with a straight line trajectory. In the straight line trajectory, the ROI is not bounded or encircled by the actual trajectory of the source (e.g., no chords that are composed from two points on the source trajectory intersect or fill the ROI to be imaged). However, the ROI may be substantially reconstructed by using “virtual” chords to reconstruct the ROI. The virtual chords are such that no point on the trajectory is included in the virtual chord (such as one that is parallel to the straight line trajectory). These virtual chords may intersect and fill the ROI, thus enabling substantially exact reconstruction. Further, in reconstructing the image, the straight line trajectory may be assumed to be infinite in length.
摘要翻译：提供了一种用于使用成像系统重建用于对象的感兴趣区域（ROI）的方法和装置。成像系统可以用直线轨迹基本上精确地重建ROI。在直线轨迹中，ROI不受源的实际轨迹的限制或环绕（例如，由源轨迹上的两个点组成的和弦不相交或填充要被成像的ROI）。然而，可以通过使用“虚拟”和弦来重建ROI来实质地重建ROI。虚拟和弦使虚拟和弦中不包含轨迹上的点（例如平行于直线轨迹的点）。这些虚拟和弦可以相交并填充ROI，从而实现基本精确的重建。此外，在重建图像时，可以认为直线轨迹的长度是无限大的。

6. 发明申请

US20050249432A1 Imaging system 有权
标题翻译：成像系统
公开(公告)号：US20050249432A1
公开(公告)日：2005-11-10
申请号：US11054788
申请日：2005-02-10
申请人： Yu Zou , Xiaochuan Pan
发明人： Yu Zou , Xiaochuan Pan
IPC分类号： A61B6/00 , G01N23/00 , G01N23/04 , G06K9/36 , G06T11/00 , G21K1/12 , H05G1/60
CPC分类号： G06T11/006 , A61B6/027 , A61B6/037 , A61B6/508 , G01N23/046 , G01N2223/419 , G06T2211/416 , G06T2211/421
摘要： A method and apparatus for reconstruction of a region of interest for an object is provided. The reconstruction of the object may be based on chords which may fill a part, all, or more than all of the region of interest. Using chords for reconstruction may allow for reducing data acquired and/or processing for reconstructing a substantially exact image of the ROI. Moreover, various methodologies may be used in reconstructing the image, such as backprojection-filtration, and modified filtration backprojection.
摘要翻译：提供了一种用于重建对象的感兴趣区域的方法和装置。对象的重建可以基于可以填充所有感兴趣区域的全部或全部的和弦。使用和弦进行重建可以允许减少获得的数据和/或用于重建ROI的基本上精确的图像的处理。此外，各种方法可用于重建图像，例如反投影过滤和修改过滤反投影。

7. 发明授权

US08121245B2 Imaging system 有权
标题翻译：成像系统
公开(公告)号：US08121245B2
公开(公告)日：2012-02-21
申请号：US12930856
申请日：2011-01-19
申请人： Xiaochuan Pan , Yu Zou , Lifeng Yu , Chien-Min Kao , Martin King , Maryellen Giger , Dan Xia , Howard Halpern , Charles Pelizzari , Emil Y. Sidky , Seungryong Cho
发明人： Xiaochuan Pan , Yu Zou , Lifeng Yu , Chien-Min Kao , Martin King , Maryellen Giger , Dan Xia , Howard Halpern , Charles Pelizzari , Emil Y. Sidky , Seungryong Cho
IPC分类号： G01T1/00
CPC分类号： A61B6/5288 , A61B6/027 , A61B6/032 , A61B6/037 , A61B6/484 , A61B6/508 , A61B6/5264 , A61B6/583 , A61B6/587
摘要： A method and apparatus for reconstruction of a region of interest for an object is provided. The reconstruction of the object may be based on chords which may fill a part, all, or more than all of the region of interest. Using chords for reconstruction may allow for reducing data acquired and/or processing for reconstructing a substantially exact image of the ROI. Moreover, various methodologies may be used in reconstructing the image, such as backprojection-filtration, and modified filtration backprojection.
摘要翻译：提供了一种用于重建对象的感兴趣区域的方法和装置。对象的重建可以基于可以填充所有感兴趣区域的全部或全部的和弦。使用和弦进行重建可以允许减少获得的数据和/或用于重建ROI的基本上精确的图像的处理。此外，各种方法可用于重建图像，例如反投影过滤和修改过滤反投影。

8. 发明授权

US06528793B1 Accurate image reconstruction for DOI-PET system 失效
标题翻译： DOI-PET系统的精确图像重建
公开(公告)号：US06528793B1
公开(公告)日：2003-03-04
申请号：US09693478
申请日：2000-10-20
申请人： Chin-Tu Chen , Xiaochuan Pan , Chien-Min Kao
发明人： Chin-Tu Chen , Xiaochuan Pan , Chien-Min Kao
IPC分类号： G01T1164
CPC分类号： G01V5/0008 , A61B6/037 , G01T1/2985 , G06T11/005
摘要： A method and apparatus are provided for reconstructing images from data obtained from scintillation events occurring within a projection space of a depth-of-interaction positron emission tomography system. The method includes the steps of identifying a segment of each depth-of-interaction detector of respective pairs of depth-of-interaction detectors detecting the scintillation-events of the data obtained within the projection space and estimating a set of sinograms from the data based upon a set of depth-independent point spread functions of the identified segments of the respective pairs of depth-of-interaction detectors.
摘要翻译：提供了一种方法和装置，用于根据在相互作用的深度正电子发射断层摄影系统的投影空间内发生的闪烁事件获得的数据重建图像。该方法包括以下步骤：识别检测在投影空间内获得的数据的闪烁事件的相互对的深度相互作用检测器的每个相互作用检测器的一段，并从基于数据的基础上估计一组中心图在相应的相互作用深度检测器对的所识别的段的一组与深度无关的点扩展函数上。

9. 发明授权

US6052427A Multidimensional interpolation 失效
标题翻译：多维插值
公开(公告)号：US6052427A
公开(公告)日：2000-04-18
申请号：US166041
申请日：1998-10-05
申请人： Xiaochuan Pan
发明人： Xiaochuan Pan
IPC分类号： A61B6/03 , G06T11/00
CPC分类号： G06T11/005 , A61B6/03 , G06T2211/421 , Y10S378/901
摘要： A method and apparatus are provided for interpolating a first set of multi-dimensional sample values from a second set of multi-dimensional sample values. The method includes the steps of determining a set of relationships between a second sampling space from which the second set of samples are obtained and a first sampling space into which the first set of samples are interpolated and calculating a partial Fourier transform of the second set of samples. The method further includes the steps of obtaining a partial Fourier transform of the first set of samples using the calculated partial Fourier transform of the second set of samples based upon the determined relationship between the first and second space and performing an inverse partial Fourier transform on the obtained partial Fourier transform of the first set of sample values to recover the first set of sample values.
摘要翻译：提供了一种方法和装置，用于从第二组多维样本值内插第一组多维样本值。该方法包括以下步骤：确定获得第二样本集合的第二采样空间与第一采样集合被插值到其中的第一采样空间之间的一组关系，并且计算第二组样本的部分傅里叶变换样品。该方法还包括以下步骤：基于所确定的第一和第二空间的关系，使用所计算的第二组样本的部分傅立叶变换来获得第一组样本的部分傅里叶变换，并且对获得第一组样本值的部分傅里叶变换，以恢复第一组样本值。

10. 发明授权

US09025843B2 Imaging system 有权
公开(公告)号：US09025843B2
公开(公告)日：2015-05-05
申请号：US13400503
申请日：2012-02-20
申请人： Xiaochuan Pan , Yu Zou , Lifeng Yu , Chien-Min Kao , Martin King , Maryellen Giger , Dan Xia , Howard Halpern , Charles Pelizzari , Emil Y. Sidky , Seungryong Cho
发明人： Xiaochuan Pan , Yu Zou , Lifeng Yu , Chien-Min Kao , Martin King , Maryellen Giger , Dan Xia , Howard Halpern , Charles Pelizzari , Emil Y. Sidky , Seungryong Cho
IPC分类号： G06K9/00 , A61B6/00 , A61B6/03 , A61B6/02
CPC分类号： A61B6/5288 , A61B6/027 , A61B6/032 , A61B6/037 , A61B6/484 , A61B6/508 , A61B6/5264 , A61B6/583 , A61B6/587
摘要： A method and apparatus for reconstruction of a region of interest for an object is provided. The reconstruction of the object may be based on chords which may fill a part, all, or more than all of the region of interest. Using chords for reconstruction may allow for reducing data acquired and/or processing for reconstructing a substantially exact image of the ROI. Moreover, various methodologies may be used in reconstructing the image, such as backprojection-filtration, and modified filtration backprojection.

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