Method and system for generation, storage and distribution of omni-directional object views
    11.
    发明授权
    Method and system for generation, storage and distribution of omni-directional object views 失效
    全方位对象视图的生成,存储和分发的方法和系统

    公开(公告)号:US07460130B2

    公开(公告)日:2008-12-02

    申请号:US10380720

    申请日:2001-09-21

    CPC分类号: G06F17/30017 A61B5/14532

    摘要: Image acquisition refers to the taking of digital images of multiple views of the object of interest. In the processing step, the constituent images collected in the image acquisition step are selected and further processed to form a multimedia sequence which allows for the interactive view of the object. Furthermore, during the Processing phase, the entire multimedia sequence is compressed and digitally signed to authorize it viewing. In the Storage and Caching Step, the resulting multimedia sequence is sent to a storage servers. In the Transmission and viewing step, a Viewer (individual) may request a particular multi-media sequence, for example, by selecting a particular hyperlink within a browser, which initiates the downloading, checking of authorization to view, decompression and interactive rendering of the multi-media sequence on the end-users terminal, which could be any one of a variety of devices, including a desktop PC, or a hand-held device.

    摘要翻译: 图像采集是指拍摄感兴趣对象的多个视图的数字图像。 在处理步骤中,选择并进一步处理在图像获取步骤中收集的构成图像以形成允许对象的交互视图的多媒体序列。 此外,在处理阶段,整个多媒体序列被压缩并进行数字签名以授权查看。 在存储和缓存步骤中,产生的多媒体序列被发送到存储服务器。 在传送和观看步骤中,查看器(个人)可以请求特定的多媒体序列,例如通过选择浏览器内的特定超链接,启动下载,查看权限,解压缩和交互式渲染 终端用户终端上的多媒体序列,其可以是包括台式PC或手持设备在内的各种设备中的任一种。

    System and method for reducing artifacts in motion corrected dynamic image sequences
    12.
    发明申请
    System and method for reducing artifacts in motion corrected dynamic image sequences 审中-公开
    用于减少运动校正动态图像序列中伪像的系统和方法

    公开(公告)号:US20060239585A1

    公开(公告)日:2006-10-26

    申请号:US11393516

    申请日:2006-03-30

    IPC分类号: G06K9/40

    摘要: A system and method for reducing artifacts in a motion corrected image sequence are provided. A method reducing an artifact in a motion corrected image sequence comprises: applying a deformation to a reference image of a plurality of post-contrast enhanced images to obtain an interpolated version of the reference image; and performing a registration between the interpolated version of the reference image and a pre-contrast enhanced image and the plurality of post-contrast enhanced images to obtain a plurality of motion corrected images.

    摘要翻译: 提供了用于减少运动校正图像序列中的伪影的系统和方法。 减少运动校正图像序列中的伪像的方法包括:将变形应用于多个对比度增强图像的参考图像,以获得参考图像的内插版本; 以及在参考图像的内插版本与预处理增强图像之间执行注册,以及执行多个后对比增强图像以获得多个运动校正图像。

    Synchronized Navigation of Medical Images
    15.
    发明申请
    Synchronized Navigation of Medical Images 有权
    医学图像同步导航

    公开(公告)号:US20140294263A1

    公开(公告)日:2014-10-02

    申请号:US13853174

    申请日:2013-03-29

    IPC分类号: G06T7/00

    摘要: Disclosed herein is a framework for facilitating synchronized image navigation. In accordance with one aspect, at least first and second medical images are received. A non-linear mapping between the first and second medical images is generated. A selection of a given location in the first medical image is received in response to a user's navigational operation. Without deforming the second medical image, a target location in the second medical image is determined by using the non-linear mapping. The target location corresponds to the given location in the first medical image. An optimized deformation-free view of the second medical image is generated based at least in part on the target location. While the user performs navigational operations on the first medical image, the framework repeatedly receives the selection of the given location, determines the target location using the non-linear mapping, and generates the optimized deformation-free view of the second medical image based at least in part on the target location.

    摘要翻译: 这里公开了一种促进同步图像导航的框架。 根据一个方面,至少接收第一和第二医学图像。 产生第一和第二医学图像之间的非线性映射。 响应于用户的导航操作接收对第一医疗图像中的给定位置的选择。 在不使第二医用图像变形的情况下,通过使用非线性映射来确定第二医用图像中的目标位置。 目标位置对应于第一医疗图像中的给定位置。 至少部分地基于目标位置产生第二医疗图像的优化的无变形视图。 当用户在第一医学图像上执行导航操作时,框架重复地接收对给定位置的选择,使用非线性映射确定目标位置,并且至少基于第二医学图像生成优化的无变形视图 部分在目标位置。

    System and method for robust segmentation of pulmonary nodules of various densities
    16.
    发明授权
    System and method for robust segmentation of pulmonary nodules of various densities 有权
    用于各种密度的肺结节的鲁棒分割的系统和方法

    公开(公告)号:US08165369B2

    公开(公告)日:2012-04-24

    申请号:US12243387

    申请日:2008-10-01

    IPC分类号: G06K9/00

    摘要: A method for differentiating pulmonary nodules in digitized medical images includes identifying an object of interest from a digital image of the lungs, computing a first distance map of each point of the object of interest, determining a seed point from the first distance map, starting from the seed point, growing a first region by adding successive adjacent layers of points until a background point is reached, and partitioning the first region into a nodule region and a non-nodule region.

    摘要翻译: 用于区分数字化医学图像中的肺结节的方法包括从肺的数字图像识别感兴趣对象,计算感兴趣对象的每个点的第一距离图,从第一距离图确定种子点,从 种子点,通过添加连续的相邻层点直到达到背景点来生长第一区域,并将第一区域划分成结节区域和非结节区域。

    Method for detection and visional enhancement of blood vessels and pulmonary emboli
    17.
    发明授权
    Method for detection and visional enhancement of blood vessels and pulmonary emboli 有权
    血管和肺栓塞的检测和视力增强的方法

    公开(公告)号:US07961923B2

    公开(公告)日:2011-06-14

    申请号:US11841168

    申请日:2007-08-20

    IPC分类号: G06K9/00

    摘要: A method for detecting a substantially cylindrical internal structures and dark structures surrounded by bright intensity values (contrast) in a medical image includes acquiring a medical image. A gradient of the medical image is calculated. Local shape index information for the calculated gradient of the medical image is calculated. Gradient information having a local shape index not indicative of a ridge and rut shapes is removed. Diverging gradient field responses (DGFR) are calculated based on the remaining gradient information. The DGFR responses and relative amount of DGFR responses for the rut and ridge areas is used as a discriminative feature in detecting the substantially cylindrical internal structure as well as darker occluding structures within cylindrical structures such as Pulmonary Emboli.

    摘要翻译: 用于检测医疗图像中由亮度值(对比度)包围的基本上圆柱形的内部结构和暗结构的方法包括获取医学图像。 计算医学图像的梯度。 计算医学图像的计算梯度的局部形状指数信息。 具有不表示脊和车辙形状的局部形状指标的梯度信息被去除。 基于剩余梯度信息计算发散梯度场响应(DGFR)。 用于车辙和脊部区域的DGFR响应和DGFR响应的相对量用作检测圆柱形结构(例如肺栓塞)中的基本上圆柱形的内部结构以及较暗的闭塞结构的鉴别特征。

    System and method for lesion detection using locally adjustable priors
    18.
    发明授权
    System and method for lesion detection using locally adjustable priors 有权
    使用局部可调节先验的病变检测系统和方法

    公开(公告)号:US07876943B2

    公开(公告)日:2011-01-25

    申请号:US12241183

    申请日:2008-09-30

    IPC分类号: G06K9/00 A61B5/00

    摘要: According to an aspect of the invention, a method for training a classifier for classifying candidate regions in computer aided diagnosis of digital medical images includes providing a training set of annotated images, each image including one or more candidate regions that have been identified as suspicious, deriving a set of descriptive feature vectors, where each candidate region is associated with a feature vector. A subset of the features are conditionally dependent, and the remaining features are conditionally independent. The conditionally independent features are used to train a naïve Bayes classifier that classifies the candidate regions as lesion or non-lesion. A joint probability distribution that models the conditionally dependent features, and a prior-odds probability ratio of a candidate region being associated with a lesion are determined from the training images. A new classifier is formed from the naïve Bayes classifier, the joint probability distribution, and the prior-odds probability ratio.

    摘要翻译: 根据本发明的一个方面,一种训练分类器的方法,用于对数字医学图像的计算机辅助诊断中的候选区域进行分类,包括提供注释图像的训练集,每个图像包括已被识别为可疑的一个或多个候选区域, 导出一组描述性特征向量,其中每个候选区域与特征向量相关联。 特征的子集有条件依赖,其余的特征是有条件的独立的。 条件独立的特征用于训练将候选区域分类为病变或非损伤的朴素贝叶斯分类器。 从训练图像确定与条件相关特征建模的联合概率分布以及与病变相关联的候选区域的先验概率概率。 从初始贝叶斯分类器,联合概率分布和先验概率概率比构成新的分类器。

    User interface for polyp annotation, segmentation, and measurement in 3D computed tomography colonography
    19.
    发明申请
    User interface for polyp annotation, segmentation, and measurement in 3D computed tomography colonography 有权
    用于三维计算机断层扫描结构中息肉注解,分割和测量的用户界面

    公开(公告)号:US20090080747A1

    公开(公告)日:2009-03-26

    申请号:US12231771

    申请日:2008-09-05

    IPC分类号: G06K9/00

    摘要: A method and system for providing a user interface for polyp annotation, segmentation, and measurement in computer tomography colonography (CTC) volumes is disclosed. The interface receives an initial polyp position in a CTC volume, and automatically segments the polyp based on the initial polyp position. In order to segment the polyp, a polyp tip is detected in the CTC volume using a trained 3D point detector. A local polar coordinate system is then fit to the colon surface in the CTC volume with the origin at the detected polyp tip. Polyp interior voxels and polyp exterior voxels are detected along each axis of the local polar coordinate system using a trained 3D box. A boundary voxel is detected on each axis of the local polar coordinate system based on the detected polyp interior voxels and polyp exterior voxels by boosted 1D curve parsing using a trained classifier. This results in a segmented polyp boundary. The segmented polyp is displayed in the user interface, and a user can modify the segmented polyp boundary using the interface. The interface can measure the size of the segmented polyp in three dimensions. The user can also use the interface for polyp annotation in CTC volumes.

    摘要翻译: 公开了一种用于在计算机断层造影(CTC)体积中提供用于息肉注释,分割和测量的用户界面的方法和系统。 界面在CTC体积中接收初始息肉位置,并根据初始息肉位置自动分段息肉。 为了分割息肉,使用训练有素的3D点检测器在CTC体积中检测息肉末端。 然后将局部极坐标系拟合到CTC体积中的结肠表面,其中原点在检测到的息肉末端。 使用训练有素的3D框,在局部极坐标系的每个轴上检测Polyp内部体素和息肉外部体素。 基于检测到的息肉内部体素和息肉外部体素,通过使用训练有素的分类器进行升压1D曲线解析,在局部极坐标系的每个轴上检测边界体素。 这导致分段息肉边界。 分段息肉显示在用户界面中,用户可以使用界面修改分段息肉边界。 界面可以在三维中测量分段息肉的大小。 用户还可以在CTC卷中使用界面进行息肉注释。

    Computer-Assisted Detection of Colonic Polyps Using Convex Hull
    20.
    发明申请
    Computer-Assisted Detection of Colonic Polyps Using Convex Hull 审中-公开
    使用凸形船体计算机辅助检测结肠息肉

    公开(公告)号:US20090016589A1

    公开(公告)日:2009-01-15

    申请号:US12169781

    申请日:2008-07-09

    IPC分类号: G06K9/00

    摘要: A method for performing computer-assisted diagnosis includes receiving a plurality of two-dimensional views of an internal structure, defining a search space around one or more areas of analysis within each view of the internal structure, calculating a convex hull for each area of analysis within each search space of each view of the internal structure, determining a set of foreground pixels that are located within the convex hull for each area of analysis within each search space within each view of the internal structure, and for each area of analysis, merging the set of foreground pixels that are located within the convex hull from each view.

    摘要翻译: 一种用于执行计算机辅助诊断的方法包括接收内部结构的多个二维视图,在内部结构的每个视图内围绕一个或多个分析区域定义搜索空间,为每个分析区域计算凸包 在内部结构的每个视图的每个搜索空间内,为内部结构的每个视图内的每个搜索空间内的每个分析区域确定位于凸包内的一组前景像素,并且对于每个分析区域,合并 从每个视图位于凸包中的前景像素集合。