Editing of pre-segmented images using seeds derived from contours
    1.
    发明授权
    Editing of pre-segmented images using seeds derived from contours 有权
    使用源自轮廓的种子编辑预分割图像

    公开(公告)号:US08131076B2

    公开(公告)日:2012-03-06

    申请号:US12031966

    申请日:2008-02-15

    IPC分类号: G06K9/34

    CPC分类号: G06K9/342

    摘要: A method for processing an object in image data includes the steps of drawing a contour on a pre-segmentation of an object in image data, generating at least one seed point on the pre-segmentation from an intersection of the contour and the pre-segmentation, providing a weighting factor between the seed points and the pre-segmentation, and segmenting the pre-segmentation using the seed points and the weighting factor to generate a new pre-segmentation.

    摘要翻译: 一种用于处理图像数据中的对象的方法包括以下步骤:对图像数据中的对象的预分割绘制轮廓,从轮廓和预分割的交点产生预分割上的至少一个种子点 提供种子点和预分割之间的加权因子,以及使用种子点和加权因子分割预分割以产生新的预分割。

    EDITING OF PRE-SEGMENTED IMAGES USING SEEDS DERIVED FROM CONTOURS
    3.
    发明申请
    EDITING OF PRE-SEGMENTED IMAGES USING SEEDS DERIVED FROM CONTOURS 有权
    使用从轮廓衍生的种子编辑预先分割的图像

    公开(公告)号:US20080310716A1

    公开(公告)日:2008-12-18

    申请号:US12031966

    申请日:2008-02-15

    IPC分类号: G06K9/34

    CPC分类号: G06K9/342

    摘要: A method for processing an object in image data includes the steps of drawing a contour on a pre-segmentation of an object in image data, generating at least one seed point on the pre-segmentation from an intersection of the contour and the pre-segmentation, providing a weighting factor between the seed points and the pre-segmentation, and segmenting the pre-segmentation using the seed points and the weighting factor to generate a new pre-segmentation.

    摘要翻译: 一种用于处理图像数据中的对象的方法包括以下步骤:对图像数据中的对象的预分割绘制轮廓,从轮廓和预分割的交点产生预分割上的至少一个种子点 提供种子点和预分割之间的加权因子,以及使用种子点和加权因子分割预分割以产生新的预分割。

    System for accelerated magnetic resonance imaging using parallel coils
    6.
    发明授权
    System for accelerated magnetic resonance imaging using parallel coils 有权
    使用平行线圈的加速磁共振成像系统

    公开(公告)号:US09594141B2

    公开(公告)日:2017-03-14

    申请号:US13633908

    申请日:2012-10-03

    CPC分类号: G01R33/5611

    摘要: An MR imaging system uses multiple RF coils for acquiring corresponding multiple image data sets of a slice or volume of patient anatomy. An image data processor comprises at least one processing device conditioned for, deriving a first set of weights for weighted combination of k-space data of the multiple image data sets for generating a calibration data set comprising a subset of k-space data of composite image data representing the multiple image data sets. The image data processor uses the calibration data set in generating a first MR image data set, deriving the parameters of a probability distribution in response to the first set of weights and the first MR image data set and deriving a second set of weights and second MR image data set together using the probability distribution.

    摘要翻译: MR成像系统使用多个RF线圈来获取患者解剖结构的切片或体积的相应的多个图像数据集。 图像数据处理器包括至少一个处理装置,该处理装置被调节为:为多个图像数据集的k空间数据的加权组合推导第一组加权,以产生包括合成图像的k空间数据子集的校准数据集 表示多个图像数据集的数据。 图像数据处理器使用校准数据集来生成第一MR图像数据集,响应于第一组权重和第一MR图像数据集导出概率分布的参数并导出第二组权重和第二MR 使用概率分布将图像数据集合在一起。

    System for accelerated MR image reconstruction
    7.
    发明授权
    System for accelerated MR image reconstruction 有权
    用于加速MR图像重建的系统

    公开(公告)号:US08823374B2

    公开(公告)日:2014-09-02

    申请号:US13326622

    申请日:2011-12-15

    IPC分类号: G01V3/00 G01R33/561

    CPC分类号: G01R33/5611

    摘要: An MR imaging system uses the multiple RF coils for acquiring corresponding multiple image data sets of the slice. An image data processor comprises at least one processing device conditioned for, generating a composite MR image data set representing a single image in a single non-iterative operation by performing a weighted combination of luminance representative data of individual corresponding pixels of the multiple image data sets in providing an individual pixel luminance value of the composite MR image data set. The image data processor reduces noise in the composite MR image data set by generating a reduced set of significant components in a predetermined transform domain representation of data representing the composite image to provide a de-noised composite MR image data set. An image generator comprises at least one processing device conditioned for, generating a composite MR image using the de-noised composite MR image data set.

    摘要翻译: MR成像系统使用多个RF线圈来获取切片的相应多个图像数据集。 图像数据处理器包括至少一个处理装置,该处理装置被调节为:通过执行多个图像数据集合中各个对应像素的亮度代表数据的加权组合来生成在单个非迭代操作中表示单个图像的复合MR图像数据集 提供复合MR图像数据集合的单独像素亮度值。 图像数据处理器通过在表示合成图像的数据的预定变换域表示中生成缩减的重要分量集合来降低复合MR图像数据集中的噪声,以提供去噪复合MR图像数据集。 图像生成器包括至少一个处理装置,该处理装置被调节为使用去噪合成MR图像数据集生成复合MR图像。

    System for Accelerated Magnetic Resonance Imaging Using Parallel Coils
    9.
    发明申请
    System for Accelerated Magnetic Resonance Imaging Using Parallel Coils 有权
    使用平行线圈加速磁共振成像系统

    公开(公告)号:US20130207652A1

    公开(公告)日:2013-08-15

    申请号:US13633908

    申请日:2012-10-03

    IPC分类号: G01R33/341 G01R33/58

    CPC分类号: G01R33/5611

    摘要: An MR imaging system uses multiple RF coils for acquiring corresponding multiple image data sets of a slice or volume of patient anatomy. An image data processor comprises at least one processing device conditioned for, deriving a first set of weights for weighted combination of k-space data of the multiple image data sets for generating a calibration data set comprising a subset of k-space data of composite image data representing the multiple image data sets. The image data processor uses the calibration data set in generating a first MR image data set, deriving the parameters of a probability distribution in response to the first set of weights and the first MR image data set and deriving a second set of weights and second MR image data set together using the probability distribution.

    摘要翻译: MR成像系统使用多个RF线圈来获取患者解剖结构的切片或体积的相应的多个图像数据集。 图像数据处理器包括至少一个处理装置,该处理装置被调节为:为多个图像数据集的k空间数据的加权组合推导第一组加权,以产生包括合成图像的k空间数据子集的校准数据集 表示多个图像数据集的数据。 图像数据处理器使用校准数据集来生成第一MR图像数据集,响应于第一组权重和第一MR图像数据集导出概率分布的参数并导出第二组权重和第二MR 使用概率分布将图像数据集合在一起。

    System and Method for Image Denoising Optimizing Object Curvature
    10.
    发明申请
    System and Method for Image Denoising Optimizing Object Curvature 有权
    图像去噪优化对象曲率的系统和方法

    公开(公告)号:US20120057765A1

    公开(公告)日:2012-03-08

    申请号:US13182820

    申请日:2011-07-14

    IPC分类号: G06K9/00 G06K9/40

    CPC分类号: G06T5/002

    摘要: A method for removing noise from an image includes receiving image data including a plurality of pixels. A graph including a plurality of nodes and a plurality of edges interconnecting the nodes is formulated. Each pixel of the image data is represented as a node of the graph and each edge of the graph is assigned a weight based on a penalty function applied to the nodes connected by the edge where the penalty function is less when a value of a given pixel of the plurality of pixels is between or equal to the values of two neighboring pixels than when the value of the given pixel is either greater than or less than the values of both of the two neighboring pixels. A total penalty of the graph is minimized. A denoised image is provided based on the total penalty-minimized graph.

    摘要翻译: 从图像中去除噪声的方法包括接收包括多个像素的图像数据。 制定了包括多个节点和互连节点的多个边缘的图形。 图像数据的每个像素被表示为图形的节点,并且当给定像素的值时,基于施加到由边缘连接的节点的惩罚函数分配图的每个边缘的权重 与给定像素的值大于或小于两个相邻像素的值相比,多个像素的值在或等于两个相邻像素的值。 图形的总惩罚最小化。 基于总惩罚最小化图提供去噪图像。