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31.发明申请公开(公告)号：US20080247646A1
公开(公告)日：2008-10-09
申请号：US11923868
申请日：2007-10-25
IPC分类号： G06K9/00
CPC分类号： G06T7/162 , G06T7/11 , G06T7/155 , G06T2207/10081 , G06T2207/30061
摘要： A method for segmenting at least a pair of regions of an image, such method comprising: obtaining data of the image; computing watersheds of the image from intensity gradients of such image data; extracting a watershed region adjacency graph from the computed watersheds, such graph comprising a plurality of nodes corresponding to the watersheds and node interconnecting edges; assigning weights to the interconnecting edges; identifying each of the pair of regions in the image; identifying the nodes corresponding to the pair of identified regions in the adjacency graph; applying constrained graph-partitioning in the adjacency graph using the edge-weights to label unmarked nodes corresponding to each one of the pair of regions; and extrapolating the obtained label nodes on the graph to the image to segment each one of the pair of regions of the image.
摘要翻译： 一种用于分割图像的至少一对区域的方法，所述方法包括：获得图像的数据; 从图像数据的强度梯度计算图像的流域; 从所计算的流域中提取分水岭区域邻接图，所述图包括对应于流域和节点互连边缘的多个节点; 为互连边缘分配权重; 识别图像中的该对区域中的每一个; 识别与邻接图中的所述一对识别的区域相对应的节点; 使用边缘权重在邻接图中应用约束图划分来标记对应于该对区域中的每一个的未标记节点; 并且将获得的图上的标签节点外推到图像上以分割图像的该对区域中的每一个。
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32.发明申请公开(公告)号：US20050226483A1
公开(公告)日：2005-10-13
申请号：US11100177
申请日：2005-04-06
CPC分类号： G06T19/00 , G06T15/08 , G06T2210/41 , G06T2215/08 , G06T2219/021
摘要： A system and method for creating a panoramic projection of a volumetric image of an object is disclosed. A virtual camera is placed in a center of a cubic space within the object. Images obtained from the camera are projected onto a single plane. A front image is mapped in a window at a center of the plane. A left, right, top and bottom image of the cubic space are mapped around the rectangular window such that the left, right, top and bottom images form a continuous image surrounding the rectangular window.
摘要翻译： 公开了一种用于创建物体的体积图像的全景投影的系统和方法。 将虚拟相机放置在对象内的立方体空间的中心。 从相机获得的图像投影到单个平面上。 前视图映射在平面中心的窗口中。 立方体空间的左，右，上，下图像被映射到矩形窗口周围，使得左，右，顶和底图像形成围绕矩形窗口的连续图像。
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公开(公告)号：US08942455B2
公开(公告)日：2015-01-27
申请号：US13597963
申请日：2012-08-29
IPC分类号： G06T7/00
CPC分类号： G06T7/344 , G06K2209/057 , G06T2200/04 , G06T2207/10081 , G06T2207/10088 , G06T2207/10121 , G06T2207/10124 , G06T2207/30048
摘要： A method (100) that registers a 3D heart volume (112, 114) obtained from either a pre-operative MR image or CT image (102) to an intra-operative fluoroscopic image using a mesh of the heart structure (106) as the basis for the registration.
摘要翻译： 一种方法（100），其使用心脏结构（106）的网格将从手术前MR图像或CT图像（102）获得的3D心脏体积（112,114）登记到手术中透视图像，作为 注册基础。
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34.发明申请2D3D REGISTRATION FOR MR-X RAY FUSION UTILIZING ONE ACQUISITION OF MR DATA 审中-公开使用MR数据采集的MR-X射线融合的2D3D注册公开(公告)号：US20130190602A1
公开(公告)日：2013-07-25
申请号：US13353633
申请日：2012-01-19
CPC分类号： A61B5/055 , A61B5/0035 , A61B5/7425 , A61B6/032 , A61B6/5247 , G06T7/11 , G06T7/33 , G06T2207/10088 , G06T2207/10116 , G06T2207/10124 , G06T2207/30008 , G06T2207/30016
摘要： Systems and methods for 2D3D registration of apply MR volumes and X-ray images using DRR techniques. A bone classifier is trained from co-registered UTE1, UTE2 and CT prior images. Dual-echo MR UTE1 and UTE2 images are acquired from a patient. The bone structure of the patient is classified and a labeled segmentation is generated. A DRR image is generated from the labeled segmentation and is registered with an X-ray image of the patient. The registration methods are implemented on a processor based system.
摘要翻译： 使用DRR技术应用MR体积和X射线图像的2D3D注册的系统和方法。 骨分类器由共同注册的UTE1，UTE2和CT先前图像进行训练。 从患者获取双回波MR UTE1和UTE2图像。 对患者的骨骼结构进行分类，并生成标记分割。 从标记的分割生成DRR图像，并且与患者的X射线图像一起登记。 注册方法在基于处理器的系统上实现。
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公开(公告)号：US08433114B2
公开(公告)日：2013-04-30
申请号：US12556929
申请日：2009-09-10
IPC分类号： G06K9/00
CPC分类号： G06K9/6206 , G06K2209/05 , G06T3/0081 , G06T2207/10072 , G06T2207/30004
摘要： A method and system for improving the quality of composing image volumes using deformable registration, and a gradual elastic morphing to create a seamless whole body volume image from several component volumes from a 3D medical imager.
摘要翻译： 一种用于使用可变形配准提高组合图像体积的质量的方法和系统，以及逐渐的弹性变形，以从3D医疗成像器的几个组件体积创建无缝全身体积图像。
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36.发明授权System and method for the generation of attenuation correction maps from MR images 有权用于从MR图像生成衰减校正图的系统和方法公开(公告)号：US08218848B2
公开(公告)日：2012-07-10
申请号：US12506333
申请日：2009-07-21
IPC分类号： G06K9/00
CPC分类号： G06K9/342 , G06K2209/051 , G06T7/11 , G06T7/149 , G06T2207/10088 , G06T2207/30004
摘要： A method for generating a positron emission tomography (PET) attenuation correction map from magnetic resonance (MR) images includes segmenting a 3-dimensional (3D) magnetic resonance (MR) whole-body image of a patient into low-signal regions, fat regions, and soft tissue regions; classifying the low-signal regions as either lungs, bones, or air by identifying lungs, identifying an abdominal station, and identifying a lower body station; and generating an attenuation map from the segmentation result by replacing the segmentation labels with corresponding representative attenuation coefficients.
摘要翻译： 用于从磁共振（MR）图像生成正电子发射断层摄影（PET）衰减校正图的方法包括将患者的三维（3D）磁共振（MR）全身图像分为低信号区域，脂肪区域 和软组织区域; 通过识别肺，识别腹部站和识别下半身站将低信号区域分类为肺，骨骼或空气; 以及通过用对应的代表衰减系数代替分割标签，从分割结果生成衰减图。
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37.发明申请UNIFYING RECONSTRUCTION AND MOTION ESTIMATION IN FIRST PASS CARDIAC PERFUSION IMAGING 有权第一次心脏灌注成像中的统一重建和运动估计公开(公告)号：US20120148128A1
公开(公告)日：2012-06-14
申请号：US13273410
申请日：2011-10-14
IPC分类号： G06K9/00
CPC分类号： G01R33/56366 , G01R33/5611 , G01R33/56509
摘要： Methods and a system to unify reconstruction and motion estimation steps in first pass cardiac perfusion MRI include a global objective function that meets data consistency, spatial smoothness, motion and contrast dynamics constraints. The global objective decomposed into simpler sub-problems which include low pass filtering of a deformed object, TV shrinkage, analytical Fourier replacement and an l2 minimizing problem. A registration tool based on the local cross-correlation similarity measure and enabled to perform both rigid and flexile deformations, is applied. Registration parameters are tuned by rigid, semi rigid and flexible models at different stages of iterations. A system to perform the methods is also disclosed.
摘要翻译： 在第一次心脏灌注MRI中统一重建和运动估计步骤的方法和系统包括满足数据一致性，空间平滑度，运动和对比度动力学约束的全局目标函数。 全局目标分解为更简单的子问题，包括变形对象的低通滤波，电视收缩，分析傅立叶置换和最小二乘问题。 应用基于局部互相关相似性测量并且能够执行刚性和柔性变形的注册工具。 注册参数通过刚性，半刚性和柔性模型在不同的迭代阶段进行调整。 还公开了执行方法的系统。
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38.发明授权Method and system for registration of contrast-enhanced images with volume-preserving constraint 有权使用体积保留约束的对比度增强图像配准的方法和系统公开(公告)号：US08098911B2
公开(公告)日：2012-01-17
申请号：US11945337
申请日：2007-11-27
IPC分类号： G06K9/32
CPC分类号： G06K9/32 , G06K9/6206 , G06T7/30
摘要： A method and system for registering a first image of, for example, a liver and a second image of the liver being contrast-enhanced comprises: deriving a statistical similarity measure between images; deriving a smooth divergence-free vector field derived from a gradient of the statistical similarity measure; and integrating the vector field for providing a fluid-based algorithm including a volume-preserving constraint for a transformation for registering the images.
摘要翻译： 用于登记例如肝脏的第一图像和对比度增强的肝脏的第二图像的方法和系统包括：导出图像之间的统计学相似性度量; 导出从统计相似性度量的梯度导出的平滑无差矢量场; 并且整合矢量场以提供基于流体的算法，其包括用于注册图像的变换的体积保留约束。
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39.发明申请SYSTEM AND METHOD FOR VERIFYING REGISTRATION ACCURACY IN DIGITAL MEDICAL IMAGES 有权用于在数字医学图像中验证注册精度的系统和方法公开(公告)号：US20110085716A1
公开(公告)日：2011-04-14
申请号：US12897845
申请日：2010-10-05
IPC分类号： G06K9/00
CPC分类号： G06K9/6215 , G06T7/33 , G06T2207/10072 , G06T2207/30016
摘要： A method of verifying a registration of a digital image includes receiving a reference image and a moving image registered to the reference image representing the same object, selecting one or more landmarks in the images, defining a neighborhood in the domain of each image near each selected landmark, extracting feature sets from the neighborhoods for the reference image and the registered moving image, calculating a total quality measure of the registration of the moving image from a distance metric applied to the feature sets extracted from the neighborhoods of the reference image and the registered moving image, comparing the total quality measure to a threshold determined from a reference atlas for the object represented in the image, and determining whether to accept or reject the registration of the moving image based on the comparison result.
摘要翻译： 验证数字图像的注册的方法包括接收参考图像和登记到表示相同对象的参考图像的运动图像，选择图像中的一个或多个界标，定义每个图像附近的每个图像的域中的邻域 从参考图像和注册的运动图像的邻域中提取特征集合，从施加到从参考图像的邻域提取的特征集的距离度量和注册的参考图像的附近计算运动图像的注册的总质量测量 运动图像，将总质量度量与由图像中表示的对象的参考图集确定的阈值进行比较，以及基于比较结果确定是否接受或拒绝运动图像的注册。
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公开(公告)号：US20100061606A1
公开(公告)日：2010-03-11
申请号：US12512080
申请日：2009-07-30
IPC分类号： G06K9/00
CPC分类号： G06F19/321 , G06F19/00 , G06T5/50
摘要： A method and system for data dependent multi phase image visualization, includes: acquiring a plurality of series of image data acquisitions; registering the plurality of series of image data acquisitions to a same reference series to create a plurality of registered series; combining information from the registered series to create a new series; creating a further new series by a selection decision based on combination rules from information from the plurality of registered series and the new series; and displaying the further new series.
摘要翻译： 一种用于数据相关多相图像可视化的方法和系统，包括：获取多个系列图像数据采集; 将多个一系列图像数据采集登记到相同的参考系列以创建多个登记的系列; 结合注册系列的信息创建新系列; 通过基于来自多个注册系列和新系列的信息的组合规则的选择决定来创建另一新系列; 并展示进一步的新系列。
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