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1. 发明授权

US08913830B2 Multilevel image segmentation 有权
标题翻译：多级图像分割
公开(公告)号：US08913830B2
公开(公告)日：2014-12-16
申请号：US11313102
申请日：2005-12-20
申请人： Yiyong Sun , Herve Lombaert , Leo Grady , Chenyang Xu
发明人： Yiyong Sun , Herve Lombaert , Leo Grady , Chenyang Xu
IPC分类号： G06K9/00 , G06K9/34 , G06T7/00
CPC分类号： G06T7/0081 , G06K9/342 , G06T7/11 , G06T7/162 , G06T7/174 , G06T2207/20016 , G06T2207/20036 , G06T2207/20101 , G06T2207/30048
摘要： A multilevel image segmentation technique using graph cuts is disclosed. A reduced resolution image is generated from a full resolution image which is to be segmented. The reduced resolution image is then segmented in order to identify a boundary between an object and a background within the image. The identified boundary then identifies a portion of an increased resolution image which is segmented in order to refine the earlier identified boundary. The steps may be iterated for successively increasing image resolutions in order to refine the boundary as required by a particular application. An initial identification of object and background portions of the image may be provided as input by a user. Alternatively, a user may identify only the object portion, and the background portion may be automatically determined.
摘要翻译：公开了使用图形切割的多级图像分割技术。从要分割的全分辨率图像生成缩小分辨率图像。然后将分辨率降低的图像分割以识别图像内的对象和背景之间的边界。所识别的边界然后识别分段的增加的分辨率图像的一部分，以便改进先前识别的边界。可以迭代步骤以连续增加图像分辨率，以便根据特定应用的要求来细化边界。图像的对象和背景部分的初始识别可以被提供为用户的输入。或者，用户可以仅标识对象部分，并且背景部分可以被自动确定。

2. 发明申请

US20060159342A1 Multilevel image segmentation 有权
标题翻译：多级图像分割
公开(公告)号：US20060159342A1
公开(公告)日：2006-07-20
申请号：US11313102
申请日：2005-12-20
申请人： Yiyong Sun , Herve Lombaert , Leo Grady , Chenyang Xu
发明人： Yiyong Sun , Herve Lombaert , Leo Grady , Chenyang Xu
IPC分类号： G06K9/34
CPC分类号： G06T7/0081 , G06K9/342 , G06T7/11 , G06T7/162 , G06T7/174 , G06T2207/20016 , G06T2207/20036 , G06T2207/20101 , G06T2207/30048
摘要： A multilevel image segmentation technique using graph cuts is disclosed. A reduced resolution image is generated from a full resolution image which is to be segmented. The reduced resolution image is then segmented in order to identify a boundary between an object and a background within the image. The identified boundary then identifies a portion of an increased resolution image which is segmented in order to refine the earlier identified boundary. The steps may be iterated for successively increasing image resolutions in order to refine the boundary as required by a particular application. An initial identification of object and background portions of the image may be provided as input by a user. Alternatively, a user may identify only the object portion, and the background portion may be automatically determined.
摘要翻译：公开了使用图形切割的多级图像分割技术。从要分割的全分辨率图像生成缩小分辨率图像。然后将分辨率降低的图像分割以识别图像内的对象和背景之间的边界。所识别的边界然后识别分段的增加的分辨率图像的一部分，以便改进先前识别的边界。可以迭代步骤以连续增加图像分辨率，以便根据特定应用的要求来细化边界。图像的对象和背景部分的初始识别可以被提供为用户的输入。或者，用户可以仅标识对象部分，并且背景部分可以被自动确定。

3. 发明授权

US07889227B2 Intuitive user interface for endoscopic view visualization 有权
标题翻译：用于内窥镜视图可视化的直观用户界面
公开(公告)号：US07889227B2
公开(公告)日：2011-02-15
申请号：US11227807
申请日：2005-09-15
申请人： Norbert Rahn , Chenyang Xu , Yiyong Sun , Scott Baker , Matthias John , Herve Lombaert
发明人： Norbert Rahn , Chenyang Xu , Yiyong Sun , Scott Baker , Matthias John , Herve Lombaert
IPC分类号： H04N9/47 , H04N15/00 , A61B1/06 , A61B1/00
CPC分类号： G06F3/04845 , G06T19/003 , G06T2219/028
摘要： An intuitive user interface is provided for endoscopic view visualization. The user interface may permit individual or simultaneous navigation through images displayed in an endoscopic view window, a three dimensional overview window, and a multi-planar reformatted window. An operation performed directly on one of the windows may commence the navigation. The endoscopic view window may be divided into a plurality of sub-regions, each sub-region having a corresponding navigation function. The endoscopic view window and the three dimensional overview window may have corresponding icons related to a single location in corresponding images being displayed. The corresponding icons may be color coded to facilitate intuitive alignment of the corresponding images displayed in the different windows. The three dimensional overview window may have a geometric icon to facilitate intuitive alignment of the corresponding images. The multi-planar reformatted window may permit spherical navigation through the images displayed.
摘要翻译：为内窥镜视图可视化提供直观的用户界面。用户界面可以允许通过在内窥视图窗口，三维概览窗口和多平面格式化窗口中显示的图像进行单独或同时导航。在其中一个窗口上直接执行的操作可以开始导航。内窥视图窗口可以被划分为多个子区域，每个子区域具有相应的导航功能。内窥视图窗口和三维概览窗口可以具有与正在显示的相应图像中的单个位置相关联的相应图标。对应的图标可以是颜色编码的，以便于在不同窗口中显示的相应图像的直观对准。三维概览窗口可以具有几何图标以便于对应图像的直观对准。多平面重新格式化的窗口可以允许通过显示的图像进行球形导航。

4. 发明申请

US20070061726A1 Intuitive user interface for endoscopic view visualization 有权
标题翻译：用于内窥镜视图可视化的直观用户界面
公开(公告)号：US20070061726A1
公开(公告)日：2007-03-15
申请号：US11227807
申请日：2005-09-15
申请人： Norbert Rahn , Chenyang Xu , Yiyong Sun , Scott Baker , Matthias John , Herve Lombaert
发明人： Norbert Rahn , Chenyang Xu , Yiyong Sun , Scott Baker , Matthias John , Herve Lombaert
IPC分类号： H04N5/44 , G09G5/00 , H04N7/173
CPC分类号： G06F3/04845 , G06T19/003 , G06T2219/028
摘要： An intuitive user interface is provided for endoscopic view visualization. The user interface may permit individual or simultaneous navigation through images displayed in an endoscopic view window, a three dimensional overview window, and a multi-planar reformatted window. An operation performed directly on one of the windows may commence the navigation. The endoscopic view window may be divided into a plurality of sub-regions, each sub-region having a corresponding navigation function. The endoscopic view window and the three dimensional overview window may have corresponding icons related to a single location in corresponding images being displayed. The corresponding icons may be color coded to facilitate intuitive alignment of the corresponding images displayed in the different windows. The three dimensional overview window may have a geometric icon to facilitate intuitive alignment of the corresponding images. The multi-planar reformatted window may permit spherical navigation through the images displayed.
摘要翻译：为内窥镜视图可视化提供直观的用户界面。用户界面可以允许通过在内窥视图窗口，三维概览窗口和多平面格式化窗口中显示的图像进行单独或同时导航。在其中一个窗口上直接执行的操作可以开始导航。内窥视图窗口可以被划分为多个子区域，每个子区域具有相应的导航功能。内窥视图窗口和三维概览窗口可以具有与正在显示的相应图像中的单个位置相关联的相应图标。对应的图标可以是颜色编码的，以便于在不同窗口中显示的相应图像的直观对准。三维概览窗口可以具有几何图标以便于对应图像的直观对准。多平面重新格式化的窗口可以允许通过显示的图像进行球形导航。

5. 发明授权

US07596283B2 Fast parametric non-rigid image registration based on feature correspondences 失效
标题翻译：基于特征对应的快速参数非刚性图像配准
公开(公告)号：US07596283B2
公开(公告)日：2009-09-29
申请号：US11099143
申请日：2005-04-05
申请人： Chenyang Xu , Xiaolei Sharon Huang , Yiyong Sun
发明人： Chenyang Xu , Xiaolei Sharon Huang , Yiyong Sun
IPC分类号： G06K9/32 , G06K9/68 , G06K9/00 , A61B5/05
CPC分类号： G06K9/6211
摘要： A method and system for non-rigidly registering a fixed to a moving image utilizing a B-Spline based free form deformation (FFD) model is disclosed. The methodology utilizes sparse feature correspondences to estimate an elastic deformation field in a closed form. In a multi-resolution manner, the method is able to recover small to large non-rigid deformations. The resulting deformation field is globally smooth and guarantees one-to-one mapping between the images being registered. The method generally comprises the steps of: detecting feature points on the fixed image and feature points on the moving image; assigning a feature vector to each feature point; calculating the dissimilarity of each pair of feature vectors for feature pairs on the fixed image and the moving image; calculating the correspondence between feature pairs based on the dissimilarity measure; solving for a dense deformation field P using a closed form FFD model; and transforming the moving image and the feature points on the moving image using a current FFD deformation field estimate.
摘要翻译：公开了一种使用B-Spline的自由形状变形（FFD）模型非固定地将固定到运动图像上的方法和系统。该方法利用稀疏特征对应来估计封闭形式的弹性变形场。以多分辨率方式，该方法能够恢复小到大的非刚性变形。所产生的变形场全局平滑，并保证要注册的图像之间的一对一映射。该方法通常包括以下步骤：检测固定图像上的特征点和运动图像上的特征点; 向每个特征点分配特征向量; 计算固定图像和运动图像上特征对的每对特征向量的不相似性; 基于不相似度计算特征对之间的对应关系; 使用封闭形式的FFD模型求解致密变形场P; 以及使用当前FFD变形场估计来变换运动图像上的运动图像和特征点。

6. 发明申请

US20090141968A1 CORONARY RECONSTRUCTION FROM ROTATIONAL X-RAY PROJECTION SEQUENCE 失效
标题翻译：旋转X射线投影序列的冠状重建
公开(公告)号：US20090141968A1
公开(公告)日：2009-06-04
申请号：US12275714
申请日：2008-11-21
申请人： Yiyong Sun , Rui Liao , Luc Duong , Frank Sauer , Chenyang Xu
发明人： Yiyong Sun , Rui Liao , Luc Duong , Frank Sauer , Chenyang Xu
IPC分类号： G06K9/00
CPC分类号： G06T7/55 , G06T7/136 , G06T2207/10116 , G06T2207/20044 , G06T2207/30101 , G06T2207/30172
摘要： A method for three-dimensional reconstruction of a branched object from a rotational sequence of images of the branched object includes segmenting the branched object from each image of the sequence, extracting centerlines of the branched object, performing symbolic reconstruction via a stereo correspondence matching between the centerlines from different views of the sequence of images using a graph cut-based optimization, and creating a three-dimensional tomographic reconstruction of the branched object compensated for motion of the branched object between the images of the sequence.
摘要翻译：从分支对象的图像的旋转顺序对分支对象进行三维重建的方法包括从分支对象的每个图像分割分支对象，提取分支对象的中心线，通过在对象之间的立体对应匹配进行符号重建使用基于图切割优化的图像序列的不同视图的中心线，以及创建分支对象的三维断层重建，以补偿分支对象在序列图像之间的运动。

7. 发明申请

US20050078881A1 Method and system for hybrid rigid registration based on joint correspondences between scale-invariant salient region features 失效
标题翻译：基于尺度不变突出特征之间的联合对应的混合刚体配准的方法和系统
公开(公告)号：US20050078881A1
公开(公告)日：2005-04-14
申请号：US10945675
申请日：2004-09-21
申请人： Chenyang Xu , Xiaolei Huang , Yiyong Sun , Frank Sauer
发明人： Chenyang Xu , Xiaolei Huang , Yiyong Sun , Frank Sauer
IPC分类号： G06K9/00 , G06K9/46 , G06K9/64 , G06T7/00 , G06T7/20
CPC分类号： G06K9/6211 , G06K9/6212 , G06K2009/6213 , G06T7/246 , G06T7/277 , G06T7/337 , G06T7/35 , G06T2207/30016
摘要： A method of aligning a pair of images includes providing a pair of images with a first image and a second image, wherein the images comprise a plurality of intensities corresponding to a domain of points in a D-dimensional space. Salient feature regions are identified in both the first image and the second image, a correspondence between each pair of salient feature regions is hypothesized, wherein a first region of each pair is on the first image and a second region of each pair is on the second image, the likelihood of the hypothesized correspondence of each pair of feature regions is measured, and a joint correspondence is determined from a set of pairs of feature regions with the greatest likelihood of correspondence.
摘要翻译：对准一对图像的方法包括提供具有第一图像和第二图像的一对图像，其中图像包括对应于D维空间中的点的域的多个强度。在第一图像和第二图像两者中识别出显着特征区域，假设每对突出特征区域之间的对应关系，其中每对的第一区域在第一图像上，并且每一对的第二区域位于第二图像的第二图像上测量每对特征区域的假设对应关系的可能性，并且从一组对应关系最大的特征区域对确定联合对应关系。

8. 发明授权

US07822254B2 Automatic positioning of matching multi-planar image reformatting (MPR) views of multiple 3D medical images 有权
标题翻译：自动定位多个3D医学图像的匹配多平面图像重新格式化（MPR）视图
公开(公告)号：US07822254B2
公开(公告)日：2010-10-26
申请号：US11695096
申请日：2007-04-02
申请人： Liron Yatziv , Yiyong Sun , Chenyang Xu , Frank Sauer
发明人： Liron Yatziv , Yiyong Sun , Chenyang Xu , Frank Sauer
IPC分类号： G06K9/00
CPC分类号： G06T7/30 , G06T2207/30004
摘要： A computer-implemented method is disclosed for comparing three dimensional (3D) digital medical images. The method uses a reference MPR to position subsequent MPRs in one or more other 3D digital medical images so their content matches the reference MPR. The matched MPRs may then be used by a medical professional to diagnose a patient condition. The ability to quickly and automatically position matching MPRs for multiple 3D images eases the medical staff workload and shortens diagnostics time. Matching MPRs provides an effective way to view the 3D volumes for anatomical changes over time and to monitor medical conditions such as stenosis and tumors.
摘要翻译：公开了一种用于比较三维（3D）数字医学图像的计算机实现的方法。该方法使用参考MPR将一个或多个其他3D数字医学图像中的后续MPR定位，使得其内容与参考MPR匹配。然后，医疗专业人员可以使用匹配的MPR来诊断患者状况。快速，自动地为多个3D图像定位匹配的MPR的能力可以减轻医务人员的工作量，缩短诊断时间。匹配MPR提供了一种有效的方式来查看3D体积，以便随着时间的推移进行解剖学变化，并监测诸如狭窄和肿瘤之类的医学状况。

9. 发明授权

US07362920B2 Method and system for hybrid rigid registration based on joint correspondences between scale-invariant salient region features 失效
标题翻译：基于尺度不变突出特征之间的联合对应的混合刚体配准的方法和系统
公开(公告)号：US07362920B2
公开(公告)日：2008-04-22
申请号：US10945675
申请日：2004-09-21
申请人： Chenyang Xu , Xiaolei Huang , Yiyong Sun , Frank Sauer
发明人： Chenyang Xu , Xiaolei Huang , Yiyong Sun , Frank Sauer
IPC分类号： G06K9/32
CPC分类号： G06K9/6211 , G06K9/6212 , G06K2009/6213 , G06T7/246 , G06T7/277 , G06T7/337 , G06T7/35 , G06T2207/30016
摘要： A method of aligning a pair of images includes providing a pair of images with a first image and a second image, wherein the images comprise a plurality of intensities corresponding to a domain of points in a D-dimensional space. Salient feature regions are identified in both the first image and the second image, a correspondence between each pair of salient feature regions is hypothesized, wherein a first region of each pair is on the first image and a second region of each pair is on the second image, the likelihood of the hypothesized correspondence of each pair of feature regions is measured, and a joint correspondence is determined from a set of pairs of feature regions with the greatest likelihood of correspondence.
摘要翻译：对准一对图像的方法包括提供具有第一图像和第二图像的一对图像，其中图像包括对应于D维空间中的点的域的多个强度。在第一图像和第二图像两者中识别出显着特征区域，假设每对突出特征区域之间的对应关系，其中每对的第一区域在第一图像上，并且每一对的第二区域位于第二图像的第二图像上测量每对特征区域的假设对应关系的可能性，并且从一组对应关系最大的特征区域对确定联合对应关系。

10. 发明申请

US20070100223A1 Method and system for cardiac imaging and catheter guidance for radio frequency (RF) ablation 审中-公开
标题翻译：用于射频（RF）消融的心脏成像和导管引导的方法和系统
公开(公告)号：US20070100223A1
公开(公告)日：2007-05-03
申请号：US11545383
申请日：2006-10-10
申请人： Rui Liao , Frank Sauer , Yiyong Sun , Chenyang Xu
发明人： Rui Liao , Frank Sauer , Yiyong Sun , Chenyang Xu
IPC分类号： A61B5/05
CPC分类号： A61B6/503 , A61B6/504 , G06T5/50 , G06T7/30 , G06T11/008 , G06T2207/30048
摘要： A method for imaging for cardiac catheter guidance comprises displaying a two-dimensional (2D) image of a heart, including a catheter; registering and blending the 2D image and a three-dimensional (3D) image of the heart to derive a blended image; displaying the blended image and the 3D image; and extracting an image of the catheter and inserting it into the 3D image.
摘要翻译：用于心导管引导成像的方法包括显示包括导管的心脏的二维（2D）图像; 注册和混合2D图像和心脏的三维（3D）图像以导出混合图像; 显示混合图像和3D图像; 并提取导管的图像并将其插入3D图像。

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