METHOD AND SYSTEM FOR LESION SEGMENTATION
    11.
    发明申请
    METHOD AND SYSTEM FOR LESION SEGMENTATION 审中-公开
    LESION分类方法与系统

    公开(公告)号:US20110158491A1

    公开(公告)日:2011-06-30

    申请号:US12992764

    申请日:2009-05-12

    IPC分类号: G06K9/00

    摘要: A method and system for acquiring information on lesions in dynamic 3D medical images of a body region and/or organ, having the steps: applying a registration technique to align a plurality of volumetric image data of the body region and/or organ, yielding multi-phase registered volumetric image data of the body region and/or organ; applying a hierarchical segmentation on the multi-phase registered volumetric image data of the body region and/or organ, the segmentation yielding a plurality of clusters of n-dimensional voxel vectors of the multi-phase aligned volumetric image; determining from the plurality of clusters a cluster or set of clusters delineating the body and/or organ; identifying the connected region(s) of voxel vectors belonging to the body region and/or organ; refining/filling the connected region(s) corresponding to the body region and/or organ; reapplying the segmentation step to the refined/filled connected region(s) corresponding to the body region and/or organ, to obtain a more accurate segmentation; and acquiring information on the presence of lesions in cluster of set of clusters of said plurality of clusters.

    摘要翻译: 一种用于获取关于身体区域和/或器官的动态3D医学图像中的病变的信息的方法和系统,具有以下步骤:应用注册技术来对准身体区域和/或器官的多个体积图像数据,产生多个 相对于身体区域和/或器官的注册体积图像数据; 对身体区域和/或器官的多相登记体积图像数据应用分层分割,产生多相排列体积图像的多个n维体素向量簇; 从所述多个群集确定描绘所述身体和/或器官的群集或群集; 识别属于身体区域和/或器官的体素载体的连接区域; 精炼/填充对应于身体区域和/或器官的连接区域; 将分割步骤重新应用于对应于身体区域和/或器官的精细/填充的连接区域,以获得更准确的分割; 以及获取关于所述多个聚类的集合集合中的病变存在的信息。

    Radiographic scoring method
    13.
    发明授权

    公开(公告)号:US07065235B2

    公开(公告)日:2006-06-20

    申请号:US10237311

    申请日:2002-09-09

    申请人: Piet Dewaele

    发明人: Piet Dewaele

    IPC分类号: G06K9/00

    摘要: In a method for radiographic scoring of a radiographic image at least one region of interest is determined. Each of the determined regions of interest is displayed in close proximity to a number of reference stages each having an associated score. For each region of interest a reference stage image best matching the displayed region of interest is selected and the score number associated with the selected reference stage image is associated with the region of interest. Score numbers retained for each of the regions of interest are combined to form the score number of the radiographic image.

    Method of performing measurements on digital images
    14.
    发明申请
    Method of performing measurements on digital images 有权
    对数字图像进行测量的方法

    公开(公告)号:US20060120583A1

    公开(公告)日:2006-06-08

    申请号:US11265307

    申请日:2005-11-02

    申请人: Piet Dewaele

    发明人: Piet Dewaele

    IPC分类号: G06K9/00 G06K9/36

    摘要: A first and a second image are expressed in a common coordinate system by applying a geometric transformation to the second image so as to map a structure in the second image onto a corresponding structure in the first image in a common coordinate system. Starting from initial values, the parameters of the geometric transformation are updated taking into account the result of an evaluation of a cost function. Measurements are performed in the common coordinate system.

    摘要翻译: 通过对第二图像应用几何变换来将第一图像和第二图像表示在公共坐标系中,以将第二图像中的结构映射到公共坐标系中的第一图像中的相应结构。 从初始值开始,考虑到成本函数的评估结果,更新几何变换的参数。 在公共坐标系中进行测量。

    Method and assembly for recording a radiation image of an elongate body
    15.
    发明授权
    Method and assembly for recording a radiation image of an elongate body 有权
    用于记录细长体的辐射图像的方法和组件

    公开(公告)号:US06273606B1

    公开(公告)日:2001-08-14

    申请号:US09201981

    申请日:1998-12-01

    IPC分类号: G03B4204

    CPC分类号: A61B6/5241 A61B6/4291

    摘要: An assembly for recording a radiation image of an elongate body comprises a plurality of cassettes each conveying a recording member and each having a length that is smaller than the length of the elongate body. Supporting devices are arranged for holding the plurality of cassettes in a staggered arrangement so that the length of the staggered arrangement is at least equal to the length of the elongate body. This assembly is exposed to the radiation image of an elongate body. By use of partial images which are read from each of the recording members, the entire image of the elongate body is reconstructed.

    摘要翻译: 用于记录细长体的放射线图像的组件包括多个盒,每个盒都传送记录构件,每个盒的长度小于细长体的长度。 支撑装置被布置成用于将多个盒子保持为交错布置,使得交错布置的长度至少等于细长主体的长度。 该组件暴露于细长主体的辐射图像。 通过使用从每个记录部件读取的部分图像,重建细长主体的整个图像。

    Method of determining (a) symmetry line(s) in a radiation image
    16.
    发明授权
    Method of determining (a) symmetry line(s) in a radiation image 失效
    确定辐射图像中(a)对称线的方法

    公开(公告)号:US06263097B1

    公开(公告)日:2001-07-17

    申请号:US09103991

    申请日:1998-06-24

    申请人: Piet Dewaele

    发明人: Piet Dewaele

    IPC分类号: G06K900

    摘要: Method of determining (a) symmetry line(s) in a radiation image. A method of determining (a) symmetry line(s) in horizontal (vertical) direction in an image that is represented by a matrix of digital pixel values by (i) calculating a symmetry point for each column (row) of the image, and (ii) interconnecting calculated symmetry points.

    摘要翻译: 一种确定(a)放射线图像中的对称线的方法。一种确定(a)由图像中的(i)的数字像素值的矩阵表示的图像中的水平(垂直)方向上的对称线 )计算图像的每列(行)的对称点,以及(ii)互连计算的对称点。

    Method and apparatus for noise reduction
    17.
    发明授权
    Method and apparatus for noise reduction 失效
    减噪方法和装置

    公开(公告)号:US5461655A

    公开(公告)日:1995-10-24

    申请号:US75731

    申请日:1993-06-11

    摘要: A noise reducing method and associated apparatus for use in a medical radiographic imaging system wherein an image represented by an array of pixels is processed and the processed image is recorded on a recording medium or visualized on a display monitor. The processing comprises the steps ofa) decomposing an original image into a sequence of detail images or into an array of coefficients representing detail strength at multiple resolution levels and a residual image,b) pixelwise attenuating the detail images or the coefficient arrays according to the locally estimated amount of relevant signal present and in accordance with an estimated noise level,c) reconstructing a processed image by accumulating detail obtained from the attenuated detail images or from the attenuated detail coefficients, and further adding the residual image.

    摘要翻译: 一种用于医疗放射线照相成像系统中的降噪方法和相关装置,其中处理由像素阵列表示的图像,并将经处理的图像记录在记录介质上或在显示监视器上可视化。 该处理包括以下步骤:a)将原始图像分解成一系列细节图像,或分解成表示多个分辨率级别的细节强度的系数阵列和残差图像,b)根据所述细节图像或系数阵列逐像衰减细节图像或系数阵列 根据估计的噪声电平,本地估算的相关信号量; c)通过累积从衰减的细节图像或衰减的细节系数获得的细节来重建经处理的图像,并进一步添加残差图像。

    Method of detecting the orientation of an object in an image
    18.
    发明授权
    Method of detecting the orientation of an object in an image 有权
    检测图像中物体方向的方法

    公开(公告)号:US08036492B2

    公开(公告)日:2011-10-11

    申请号:US12851230

    申请日:2010-08-05

    申请人: Piet Dewaele

    发明人: Piet Dewaele

    IPC分类号: G06K9/32 G06K9/36

    摘要: A method of detecting the orientation of a radiographic image represented by a digital signal representation wherein mathematical moments of the digital signal representation are calculated relative to different reference entities and wherein a decision on the orientation of the radiographic image, for example the position of the thorax edge in a mammographic image, is obtained on the basis of an extreme value (minimum, maximum) of the calculated moments.

    摘要翻译: 一种检测由数字信号表示表示的放射线照相图像的取向的方法,其中数字信号表示的数学矩相对于不同的参考实体被计算,并且其中关于放射照相图像的取向的决定,例如胸部的位置 根据计算的力矩的极值(最小值,最大值)获得乳房X线照相图像中的边缘。

    Method of detecting the orientation of an object in an image
    19.
    发明授权
    Method of detecting the orientation of an object in an image 有权
    检测图像中物体方向的方法

    公开(公告)号:US07796839B2

    公开(公告)日:2010-09-14

    申请号:US10774943

    申请日:2004-02-09

    申请人: Piet Dewaele

    发明人: Piet Dewaele

    IPC分类号: G06K9/32 G06K9/36

    摘要: A method of detecting the orientation of a radiographic image represented by a digital signal representation wherein mathematical moments of the digital signal representation are calculated relative to different reference entities and wherein a decision on the orientation of the radiographic image, for example the position of the thorax edge in a mammographic image, is obtained on the basis of an extreme value (minimum, maximum) of the calculated moments.

    摘要翻译: 一种检测由数字信号表示表示的放射线照相图像的取向的方法,其中数字信号表示的数学矩相对于不同的参考实体被计算,并且其中关于放射照相图像的取向的决定,例如胸部的位置 根据计算的力矩的极值(最小值,最大值)获得乳房X线照相图像中的边缘。

    Method for Segmenting Digital Medical Image
    20.
    发明申请
    Method for Segmenting Digital Medical Image 有权
    数字医学图像分割方法

    公开(公告)号:US20080101678A1

    公开(公告)日:2008-05-01

    申请号:US11923201

    申请日:2007-10-24

    IPC分类号: G06K9/00

    摘要: A Markov Random Field (MRF)-based technique is described for performing clustering of images characterized by poor or limited data. The proposed method is a statistical classification model that labels the image pixels based on the description of their statistical and contextual information. Apart from evaluating the pixel statistics that originate from the definition of the K-means clustering scheme, the model expands the analysis by the description of the spatial dependence between pixels and their labels (context), hence leading to the reduction of the inhomogeneity of the segmentation output with respect to the result of pure K-means clustering.

    摘要翻译: 描述了基于马尔科夫随机场(MRF)的技术来执行由差或有限数据表征的图像的聚类。 所提出的方法是基于其统计和上下文信息的描述来标记图像像素的统计分类模型。 除了评估源于K-means聚类方案定义的像素统计之外,该模型通过对像素与其标签(上下文)之间的空间依赖关系的描述扩展了分析,从而导致了不均匀性的降低 相对于纯K均值聚类的结果的分割输出。