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公开(公告)号：US07715626B2
公开(公告)日：2010-05-11
申请号：US11384894
申请日：2006-03-20
IPC分类号： G06K9/34
CPC分类号： G06K9/34 , G06K2009/00932 , G06K2209/05 , G06T7/11 , G06T7/143 , G06T2207/10081 , G06T2207/20081 , G06T2207/20101 , G06T2207/30101
摘要： A method of segmenting tubular structures in digital images includes selecting a point in an image of a tubular object to be segmented, defining an initial state of the selected point, initializing measurement weights, a conditional probability distribution and a prior probability distribution of a feature space of the initial state, sampling the feature space from the prior probability distribution, estimating a posterior probability distribution by summing sample measurements weighted by the measurement weights, and segmenting a cross section of the tubular object from the posterior probability distribution.
摘要翻译： 在数字图像中分割管状结构的方法包括：选择要分割的管状物体的图像中的点，定义所选点的初始状态，初始化测量权重，条件概率分布和特征空间的先验概率分布 的初始状态，从先验概率分布中抽取特征空间，通过对由测量权重加权的样本测量求和来估计后验概率分布，以及从后验概率分布中分割管状对象的横截面。
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2.发明申请Semi-automatic Segmentation of Cardiac Ultrasound Images using a Dynamic Model of the Left Ventricle 审中-公开使用左心室动态模型对心脏超声图像进行半自动分割公开(公告)号：US20090161926A1
公开(公告)日：2009-06-25
申请号：US12028884
申请日：2008-02-11
CPC分类号： A61B8/00 , A61B8/0883 , G06T7/12 , G06T7/149 , G06T2207/10016 , G06T2207/10132 , G06T2207/20104 , G06T2207/30048
摘要： A method for segmenting a sequence of images includes developing an autoregressive model using training data including segmented images of a same type as the sequence of images. The sequence of images showing a progression of a subject through a cycle is acquired. At least two images from the sequence of images are identified. A region of interest is manually segmented from the identified images. The manually segmented images are parameterized. The autoregressive model is adapted to the parameterized segmented images. The autoregressive model is used to perform segmentation on the region of interest for a plurality of images of the sequence of images.
摘要翻译： 用于分割图像序列的方法包括使用包括与图像序列相同类型的分割图像的训练数据来开发自回归模型。 获取通过循环显示受检者进展的图像序列。 识别来自图像序列的至少两个图像。 感兴趣的区域是从识别的图像手动分割的。 手动分割的图像被参数化。 自回归模型适用于参数化分割图像。 自回归模型用于对图像序列的多个图像在感兴趣区域上进行分割。
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公开(公告)号：US20060217925A1
公开(公告)日：2006-09-28
申请号：US11366236
申请日：2006-03-02
IPC分类号： G06F17/18
CPC分类号： G06T7/0012 , G06F17/10 , G06K9/6206 , G06K9/6214 , G06K2209/01 , G06T7/12 , G06T7/143 , G06T2207/10072 , G06T2207/20081 , G06T2207/30016
摘要： Certain exemplary embodiments comprise a method, which can comprise automatically determining a probability that an entity belongs to a representation set. The representation set can be associated with a set of vectors of parameters and associated covariance matrices. Each covariance matrix can be associated with uncertainties of values comprised in the vector of parameters.
摘要翻译： 某些示例性实施例包括一种方法，其可以包括自动确定实体属于表示集合的概率。 表示集可以与一组参数和相关协方差矩阵的向量相关联。 每个协方差矩阵可以与参数向量中包含的值的不确定性相关联。
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公开(公告)号：US20050180603A1
公开(公告)日：2005-08-18
申请号：US11042694
申请日：2005-01-25
CPC分类号： G06K9/00771 , G06T7/254
摘要： A method for detecting events in a video sequence includes providing a video sequence, sampling the video sequence at regular intervals to form a series of snapshots of the sequence, measuring a similarity of each snapshot, measuring a similarity change between successive pairs of snapshots, wherein if a similarity change magnitude is greater than a predetermined threshold, a change event has been detected, verifying the change event to exclude a false positive, and completing the processing of the snapshot incorporating the verified change event.
摘要翻译： 用于检测视频序列中的事件的方法包括提供视频序列，以规则的间隔对视频序列进行采样以形成序列的一系列快照，测量每个快照的相似度，测量连续的快照对之间的相似性改变，其中 如果相似度变化幅度大于预定阈值，则检测到改变事件，验证改变事件以排除假阳性，并且完成并入验证的改变事件的快照的处理。
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公开(公告)号：US08073252B2
公开(公告)日：2011-12-06
申请号：US11754476
申请日：2007-05-29
IPC分类号： G06K9/34
CPC分类号： G06T7/149 , G06T7/12 , G06T7/143 , G06T2207/10072 , G06T2207/20081 , G06T2207/30056
摘要： A computer readable medium is provided embodying instructions executable by a processor to perform a method for sparse volume segmentation for 3D scan of a target. The method including learning prior knowledge, providing volume data comprising the target, selecting a plurality of key contours of the image of the target, building a 3D spare model of the image of the target given the plurality of key contours, segmenting the image of the target given the 3D sparse model, and outputting a segmentation of the image of the target.
摘要翻译： 提供了一种计算机可读介质，其包含可由处理器执行的指令，以执行用于目标的3D扫描的稀疏卷分割的方法。 该方法包括学习预先知识，提供包括目标的体数据，选择目标图像的多个关键轮廓，构建给定多个关键轮廓的目标图像的3D备用模型，分割图像的图像 给定3D稀疏模型的目标，并输出目标图像的分割。
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公开(公告)号：US20110123095A1
公开(公告)日：2011-05-26
申请号：US11754476
申请日：2007-05-29
IPC分类号： G06K9/00
CPC分类号： G06T7/149 , G06T7/12 , G06T7/143 , G06T2207/10072 , G06T2207/20081 , G06T2207/30056
摘要： A computer readable medium is provided embodying instructions executable by a processor to perform a method for sparse volume segmentation for 3D scan of a target. The method including learning prior knowledge, providing volume data comprising the target, selecting a plurality of key contours of the image of the target, building a 3D spare model of the image of the target given the plurality of key contours, segmenting the image of the target given the 3D sparse model, and outputting a segmentation of the image of the target.
摘要翻译： 提供了一种计算机可读介质，其包含可由处理器执行的指令，以执行用于目标的3D扫描的稀疏卷分割的方法。 该方法包括学习预先知识，提供包括目标的体数据，选择目标图像的多个关键轮廓，构建给定多个关键轮廓的目标图像的3D备用模型，分割图像的图像 给定3D稀疏模型的目标，并输出目标图像的分割。
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7.发明授权Method and system for searching and verifying magnitude change events in video surveillance 有权视频监控中大小变化事件的搜索和验证方法和系统公开(公告)号：US07555046B2
公开(公告)日：2009-06-30
申请号：US11042694
申请日：2005-01-25
IPC分类号： H04N7/12
CPC分类号： G06K9/00771 , G06T7/254
摘要： A method for detecting events in a video sequence includes providing a video sequence, sampling the video sequence at regular intervals to form a series of snapshots of the sequence, measuring a similarity of each snapshot, measuring a similarity change between successive pairs of snapshots, wherein if a similarity change magnitude is greater than a predetermined threshold, a change event has been detected, verifying the change event to exclude a false positive, and completing the processing of the snapshot incorporating the verified change event.
摘要翻译： 用于检测视频序列中的事件的方法包括提供视频序列，以规则的间隔对视频序列进行采样以形成序列的一系列快照，测量每个快照的相似度，测量连续的快照对之间的相似性改变，其中 如果相似度变化幅度大于预定阈值，则检测到改变事件，验证改变事件以排除假阳性，并且完成并入验证的改变事件的快照的处理。
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公开(公告)号：US07336803B2
公开(公告)日：2008-02-26
申请号：US10685162
申请日：2003-10-14
IPC分类号： G06K9/00
CPC分类号： G06K9/00771 , G06K9/38 , G06K9/6247 , G06T7/269
摘要： A method for dynamic scene modeling and change detection applicable to motion analysis utilizes optical flow for capturing and modeling the dynamics of the scene. Uncertainties in the measurements are evaluated and utilized in order to develop a robust representation of the scene in a higher dimensional space. In another embodiment, a dynamical model of the scene is developed that utilizes multiple past frames to predict the next frame. Incremental methods for updating the model are developed and, towards detection of events, a new measure is introduced that is based on a state-driven comparison between the prediction and the actual observation.
摘要翻译： 适用于运动分析的动态场景建模和变化检测的方法利用光流来捕获和建模场景的动力学。 评估和利用测量中的不确定性，以便在更高维度空间中开发场景的鲁棒表示。 在另一个实施例中，开发了利用多个过去帧来预测下一帧的场景的动态模型。 开发了用于更新模型的增量方法，并且为了检测事件，引入了基于预测与实际观察之间的状态驱动比较的新措施。
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公开(公告)号：US07277582B2
公开(公告)日：2007-10-02
申请号：US10727452
申请日：2003-12-04
申请人： Nikolaos Paragios
发明人： Nikolaos Paragios
IPC分类号： G06K9/48
CPC分类号： G06T7/149 , G06T7/11 , G06T2207/10132 , G06T2207/20092 , G06T2207/20116 , G06T2207/20161 , G06T2207/30048
摘要： A method for boundary based image segmentation comprises segmenting an image, providing a level set representation of the segmentation for interaction, and providing an interactive edit of the level set representation. The method further comprises converting the interactive edit into a propagation constraint, and determining a segment according to the interactive edit and the level set representation.
摘要翻译： 用于基于边界的图像分割的方法包括分割图像，提供用于交互的分割的级集合表示，以及提供所述级别集合表示的交互式编辑。 该方法还包括将交互式编辑转换为传播约束，以及根据交互式编辑和级别集合表示来确定片段。
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公开(公告)号：US20060251325A1
公开(公告)日：2006-11-09
申请号：US11265586
申请日：2005-11-02
IPC分类号： G06K9/34
CPC分类号： G06T7/143 , G06T7/12 , G06T2207/10081 , G06T2207/20101 , G06T2207/30101
摘要： A system and method for particle filter based vessel segmentation are provided, the system including a processor, a Particle Filter unit in signal communication with the processor, and a Vessel Segmentation unit in signal communication with the processor; and the method including receiving image data for a vessel, initializing the vessel, modeling successive planes of the vessel as unknown states of a sequential process, and using a Particle Filter with a Monte Carlo sampling rule to propagate a plurality of segmentation hypotheses in parallel.
摘要翻译： 提供了一种用于基于粒子滤波器的血管分割的系统和方法，该系统包括处理器，与处理器进行信号通信的粒子滤波器单元和与处理器进行信号通信的血管分割单元; 并且所述方法包括接收血管的图像数据，初始化血管，将血管的连续平面建模为顺序过程的未知状态，以及使用具有蒙特卡洛采样规则的粒子滤波器并行地传播多个分割假设。
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