公开(公告)号：US20110148928A1

公开(公告)日：2011-06-23

申请号：US12640207

申请日：2009-12-17

Applicant: Girishankar Gopalakrishnan ,  Rakesh Mullick ,  Arunabha Shasanka Roy ,  Sheshadri Rangarajan Thiruvenkadam ,  Ravindra Mohan Manjeshwar

Inventor： Girishankar Gopalakrishnan ,  Rakesh Mullick ,  Arunabha Shasanka Roy ,  Sheshadri Rangarajan Thiruvenkadam ,  Ravindra Mohan Manjeshwar

IPC: G09G5/00 ,  G06K9/00

CPC classification number: A61B6/037 ,  A61B5/7285 ,  A61B6/5264 ,  A61B6/5288 ,  A61B6/541

Abstract: A method of imaging is presented. The method includes reconstructing image data acquired at a plurality of time intervals to obtain a plurality of images. Further, the method includes generating a mean image using the plurality of images. The method also includes correcting motion in the mean image or the plurality of images or both the mean image and the plurality of images by iteratively determining convergence of the mean image or the plurality of images or both the mean image and the plurality of images to generate a converged mean image, a converged plurality of images, or both a converged mean image and a converged plurality of images.

Abstract translation: 提出了一种成像方法。 该方法包括重构以多个时间间隔获取的图像数据，以获得多个图像。 此外，该方法包括使用多个图像生成平均图像。 该方法还包括通过迭代地确定平均图像或多个图像的收敛或平均图像和多个图像两者来均衡平均图像或多个图像或平均图像和多个图像中的运动，以产生 收敛平均图像，收敛多个图像，或融合平均图像和收敛多个图像两者。

公开(公告)号：US08131044B2

公开(公告)日：2012-03-06

申请号：US12099261

申请日：2008-04-08

Applicant: Scott David Wollenweber ,  Alexander Ganin ,  Ravindra Manjeshwar ,  Girishankar Gopalakrishnan ,  Evren Asma

Inventor： Scott David Wollenweber ,  Alexander Ganin ,  Ravindra Manjeshwar ,  Girishankar Gopalakrishnan ,  Evren Asma

IPC: A61B6/03

CPC classification number: G01T1/1611 ,  A61B6/032 ,  A61B6/037 ,  A61B6/508 ,  A61B6/5235 ,  A61B6/541 ,  G06T7/30 ,  G06T2207/10076 ,  G06T2207/10081 ,  G06T2207/10104 ,  G06T2207/30004

Abstract: A method for determining the effectiveness of an image transformation process includes acquiring a four-dimensional (4D) image data set, sorting the 4D image data set into separate field-of-view bins using a temporal gating system generating a plurality of deformation vectors using the sorted 4D image data set, and using the plurality of deformation vectors to generate a transformation effectiveness value that is representative of the effectiveness of the image transformation process. The method further includes acquiring a respiratory signal, calculating a power spectrum of the respiratory signal, calculating a power spectrum for each of the plurality of deformation vectors, and comparing the power spectrum of the respiratory signal to the power spectrum of the plurality of deformation vectors to generate the transformation effectiveness value.

Abstract translation: 一种用于确定图像变换过程的有效性的方法包括获取四维（4D）图像数据集，使用使用多个变形向量生成多个变形向量的时间门控系统将4D图像数据集排列成单独的视野区域 分类的4D图像数据集，并且使用多个变形向量来生成代表图像变换处理的有效性的变换有效值。 该方法还包括获取呼吸信号，计算呼吸信号的功率谱，计算多个变形矢量中的每一个的功率谱，并将呼吸信号的功率谱与多个变形矢量的功率谱进行比较 以产生变换有效值。

公开(公告)号：US20090253980A1

公开(公告)日：2009-10-08

申请号：US12099261

申请日：2008-04-08

Applicant: Scott David Wollenweber ,  Alexander Ganin ,  Ravindra Manjeshwar ,  Girishankar Gopalakrishnan ,  Evren Asma

Inventor： Scott David Wollenweber ,  Alexander Ganin ,  Ravindra Manjeshwar ,  Girishankar Gopalakrishnan ,  Evren Asma

IPC: A61B5/05

CPC classification number: G01T1/1611 ,  A61B6/032 ,  A61B6/037 ,  A61B6/508 ,  A61B6/5235 ,  A61B6/541 ,  G06T7/30 ,  G06T2207/10076 ,  G06T2207/10081 ,  G06T2207/10104 ,  G06T2207/30004

Abstract: A method for determining the effectiveness of an image transformation process includes acquiring a four-dimensional (4D) image data set, sorting the 4D image data set into separate field-of-view bins using a temporal gating system generating a plurality of deformation vectors using the sorted 4D image data set, and using the plurality of deformation vectors to generate a transformation effectiveness value that is representative of the effectiveness of the image transformation process. The method further includes acquiring a respiratory signal, calculating a power spectrum of the respiratory signal, calculating a power spectrum for each of the plurality of deformation vectors, and comparing the power spectrum of the respiratory signal to the power spectrum of the plurality of deformation vectors to generate the transformation effectiveness value.

Abstract translation: 一种用于确定图像变换过程的有效性的方法包括获取四维（4D）图像数据集，使用使用多个变形向量生成多个变形向量的时间门控系统将4D图像数据集排列成单独的视野区域 分类的4D图像数据集，并且使用多个变形向量来生成代表图像变换处理的有效性的变换有效值。 该方法还包括获取呼吸信号，计算呼吸信号的功率谱，计算多个变形矢量中的每一个的功率谱，并将呼吸信号的功率谱与多个变形矢量的功率谱进行比较 以产生变换有效值。

公开(公告)号：US20070280556A1

公开(公告)日：2007-12-06

申请号：US11445767

申请日：2006-06-02

Applicant: Rakesh Mullick ,  Girishankar Gopalakrishnan ,  Manasi Datar

Inventor： Rakesh Mullick ,  Girishankar Gopalakrishnan ,  Manasi Datar

IPC: G06K9/32 ,  G06K9/36

CPC classification number: G06T5/50 ,  G06T7/33 ,  G06T7/38 ,  G06T2200/32 ,  G06T2207/10072 ,  G06T2207/30004

Abstract: A method for imaging is presented. The method includes receiving a first image data set and at least one other image data set. Further the method includes adaptively selecting corresponding regions of interest in each of the first image data set and the at least one other image data set based upon apriori information associated with each of the first image data set and the at least one other image data set. Additionally, the method includes selecting a customized registration method based upon the selected regions of interest and the apriori information corresponding to the selected regions of interest. The method also includes registering each of the corresponding selected regions of interest from the first image data set and the at least one other image data set employing the selected registration method.

Abstract translation: 提出了一种成像方法。 该方法包括接收第一图像数据集和至少一个其他图像数据集。 此外，该方法包括基于与第一图像数据集和至少一个其他图像数据集中的每一个相关联的先验信息自适应地选择第一图像数据集和至少一个其它图像数据集中的每一个中的相关感兴趣区域。 另外，该方法包括基于所选择的感兴趣区域和对应于所选择的感兴趣区域的先验信息来选择定制的登记方法。 该方法还包括使用所选择的注册方法从第一图像数据集和至少一个其它图像数据集登记相应的所选择的感兴趣区域中的每一个。

公开(公告)号：US09129426B2

公开(公告)日：2015-09-08

申请号：US12873039

申请日：2010-08-31

Applicant: Girishankar Gopalakrishnan ,  Alexander Ganin ,  Ravindra Mohan Majeshwar ,  Kris Filip Johan Jules Thielemans ,  Scott David Wollenweber ,  Floribertus P.M. Heukensfeldt Jansen ,  Arunabha Shasanka Roy

Inventor： Girishankar Gopalakrishnan ,  Alexander Ganin ,  Ravindra Mohan Majeshwar ,  Kris Filip Johan Jules Thielemans ,  Scott David Wollenweber ,  Floribertus P.M. Heukensfeldt Jansen ,  Arunabha Shasanka Roy

IPC: G06T11/00 ,  G06T5/50 ,  G06T7/20 ,  G06T5/00

CPC classification number: G06T7/38 ,  G06T5/002 ,  G06T5/40 ,  G06T5/50 ,  G06T7/20 ,  G06T7/269 ,  G06T7/30 ,  G06T11/005 ,  G06T2207/10016 ,  G06T2207/10104 ,  G06T2207/10108 ,  G06T2207/20221 ,  G06T2207/30004 ,  G06T2211/412

Abstract: Methods and systems for processing a set of images are described. In accordance with this disclosure, images are registered and an analysis is performed in view of one or more constraints (such as constraints based upon anatomical or physiological considerations). Weighting factors are determined based on the analysis. The weighting factors are used in subsequent processing of the registered (and/or unregistered) images and/or to formulate a visualization that conveys the degree of confidence in the motion estimation used in the registration process.

Abstract translation: 描述用于处理一组图像的方法和系统。 根据本公开，记录图像，并且根据一个或多个约束（诸如基于解剖学或生理考虑的约束）来执行分析。 加权因子根据分析确定。 加权因子用于后续的注册（和/或未注册）图像的处理和/或制定传达在注册过程中使用的运动估计中的置信度的可视化。

公开(公告)号：US20120051664A1

公开(公告)日：2012-03-01

申请号：US12873039

申请日：2010-08-31

Applicant: Girishankar Gopalakrishnan ,  Alexander Ganin ,  Ravindra Mohan Majeshwar ,  Kris Filip Johan Jules Thielemans ,  Scott David Wollenweber ,  Floribertus P.M. Heukensfeldt Jansen ,  Arunabha Shasanka Roy

Inventor： Girishankar Gopalakrishnan ,  Alexander Ganin ,  Ravindra Mohan Majeshwar ,  Kris Filip Johan Jules Thielemans ,  Scott David Wollenweber ,  Floribertus P.M. Heukensfeldt Jansen ,  Arunabha Shasanka Roy

IPC: G06K9/32

CPC classification number: G06T7/38 ,  G06T5/002 ,  G06T5/40 ,  G06T5/50 ,  G06T7/20 ,  G06T7/269 ,  G06T7/30 ,  G06T11/005 ,  G06T2207/10016 ,  G06T2207/10104 ,  G06T2207/10108 ,  G06T2207/20221 ,  G06T2207/30004 ,  G06T2211/412

Abstract: Methods and systems for processing a set of images are described. In accordance with this disclosure, images are registered and an analysis is performed in view of one or more constraints (such as constraints based upon anatomical or physiological considerations). Weighting factors are determined based on the analysis. The weighting factors are used in subsequent processing of the registered (and/or unregistered) images and/or to formulate a visualization that conveys the degree of confidence in the motion estimation used in the registration process.

Abstract translation: 描述用于处理一组图像的方法和系统。 根据本公开，记录图像，并且根据一个或多个约束（诸如基于解剖学或生理考虑的约束）来执行分析。 加权因子根据分析确定。 加权因子用于后续的注册（和/或未注册）图像的处理和/或制定传达在注册过程中使用的运动估计的置信度的可视化。