Method and system for extracting spine frontal geometrical data including vertebra pedicle locations
    2.
    发明授权
    Method and system for extracting spine frontal geometrical data including vertebra pedicle locations 失效
    脊椎额叶几何数据提取方法及系统,包括椎弓根位置

    公开(公告)号:US06850635B2

    公开(公告)日:2005-02-01

    申请号:US09965414

    申请日:2001-09-27

    摘要: The invention relates to an image processing method of extracting geometrical data of the spine, for extracting the left and right pedicle landmarks of each spine vertebra, comprising steps of: acquiring image data of a 2-D frontal image of the spine; associating spine States to vertebra positions along the spine and estimating locations of left and right pedicle landmark Candidates in each State; defining a State Cost for forming Couples of left and right pedicle landmark Candidates (PL and PR); estimating sets of Best Couple Candidates, in each State, from the lowest State Costs; defining a Path Cost to go from one State to the next State; selecting a pedicle landmark Couple in each spine State (V) among the Best Couple Candidates from the minimum Path Costs, and localizing the left and right pedicle landmarks of each spine vertebra from said selected pedicle landmark Couple. The invention also relates to a system, a medical apparatus and a program product for carrying out the method.Application: Medical Imaging x-ray Medical System and apparatus; Program Product for Medical Imaging.

    摘要翻译: 本发明涉及一种提取脊柱几何数据的图像处理方法,用于提取每个脊椎椎弓根的左右椎弓根标志,其特征在于包括以下步骤:获取脊柱的二维正面图像的图像数据; 将脊柱状态与沿着脊柱的椎骨位置相关联,并估计每个国家左侧和右侧椎弓根标志物候选者的位置; 确定形成左右椎弓根标志性候选人(PL和PR)夫妇的国家费用; 估计每个国家的最佳夫妇候选人的最低国家费用; 确定从一个国家到下一个国家的路径成本; 从最小路径成本中选择最佳夫妇候选者中的每个脊柱状态(V)中的椎弓根标志物,并且从所述选定的椎弓根标记物对本地化每个脊椎的左右椎弓根标记。本发明还涉及一种系统, 一种用于执行该方法的医疗设备和程序产品。应用:医疗成像x射线医疗系统和装置; 医学成像程序产品。

    Medical viewing system having means for image adjustment
    3.
    发明申请
    Medical viewing system having means for image adjustment 审中-公开
    具有用于图像调整的装置的医疗观察系统

    公开(公告)号:US20050025347A1

    公开(公告)日:2005-02-03

    申请号:US10499944

    申请日:2002-10-16

    摘要: A medical viewing system including an imaging means (2,3) and image data processing means (5) is arranged to facilitate production of different images of a feature of interest such that the pose of the feature of interest is comparable in the different images. The image data processing means (5) estimates the pose of the feature of interest in a second image relative to the pose thereof in a first image, typically generated at a different time, and applies an affine transformation, for example to the second image, so as to produce a transformed second image in which the feature of interest has substantially the same pose as in the first image. The image data may also be processed so as to normalize the intensity characteristics of the images to be compared. Gross differences in pose can be eliminated by processing the image data so as to generate control data indicating how to set up the imaging apparatus to produce an image having the feature of interest oriented substantially in a desired pose.

    摘要翻译: 布置包括成像装置(2,3)和图像数据处理装置(5)的医学观察系统,以促进产生感兴趣特征的不同图像,使得感兴趣特征的姿态在不同图像中是可比较的。 图像数据处理装置(5)在通常在不同时间生成的第一图像中相对于其姿势估计第二图像中的感兴趣特征的姿态,并且例如对第二图像应用仿射变换, 以便产生其中感兴趣的特征具有与第一图像基本相同姿势的变换的第二图像。 还可以处理图像数据,以便对要比较的图像的强度特性进行归一化。 可以通过处理图像数据来消除姿态的总体差异,以便产生指示如何设置成像装置的控制数据,以产生具有基本上处于期望姿态的感兴趣特征的图像。

    Medical examination apparatus having means for performing correction of settings
    4.
    发明申请
    Medical examination apparatus having means for performing correction of settings 审中-公开
    具有进行设定校正的装置的医疗检查装置

    公开(公告)号:US20050192495A1

    公开(公告)日:2005-09-01

    申请号:US10499310

    申请日:2002-12-16

    摘要: A medical examination apparatus including an imaging means (2,3), a viewing system (4), wherein image data processing means (5) is arranged to facilitate production of different images of a feature of interest such that the pose of the feature is comparable in the different images. The image data processing means (5) estimates the pose of the anatomical feature in a first image generated by the imaging means, produces imaging means control data indicative of the desired imaging geometry for controlling one or more parameters of the imaging means (2,3) for producing a further image having the feature of interest in the estimated pose, and outputs the produced imaging means control data. The output control data may be output in a viewable form and/or output directly to the imaging means (2,3) so as automatically to control the parameters thereof. The output control data can also control the imaging means so as to produce an image having desired intensity characteristics.

    摘要翻译: 一种医疗检查装置,包括成像装置(2,3),观察系统(4),其中图像数据处理装置(5)被布置为便于生成感兴趣特征的不同图像,使得特征的姿态为 在不同的图像中相当。 图像数据处理装置(5)估计由成像装置产生的第一图像中的解剖特征的姿态,产生指示所需成像几何的成像装置控制数据,以控制成像装置的一个或多个参数(2,3 ),用于产生具有估计姿态的感兴趣特征的另一图像,并且输出所产生的成像装置控制数据。 输出控制数据可以以可视形式输出和/或直接输出到成像装置(2,3),以便自动地控制其参数。 输出控制数据也可以控制成像装置,以产生具有所需强度特性的图像。

    Filtering of image sequences
    7.
    发明授权
    Filtering of image sequences 有权
    过滤图像序列

    公开(公告)号:US08411924B2

    公开(公告)日:2013-04-02

    申请号:US12529358

    申请日:2008-03-03

    IPC分类号: G06K9/00

    摘要: Method of image processing, the method comprises providing a sequence (2) of images (F) which have contrast modulation (100) along said sequence (2); providing a reference frequency (fm, 10) related to said contrast modulations (100) along said sequence (2); and filtering said sequence of images depending on said reference frequency (fm, 10). According to an embodiment, a windowed harmonic filtering is applied to the sequence of input images to extract fundamental in-phase (122) and quadrature (124) components at a heart beat frequency (fm). The resultant time-signal phase is displayed (34) as image sequence.

    摘要翻译: 图像处理方法,该方法包括提供沿着所述序列(2)具有对比度调制(100)的图像序列(2); 提供与所述对比度调制(100)相关的所述序列(2)的参考频率(fm,10)。 并根据所述参考频率(fm,10)对所述图像序列进行滤波。 根据实施例,将窗口谐波滤波应用于输入图像序列,以心跳频率(fm)提取基本同相(122)和正交(124)分量。 合成的时间信号相位显示为(34)作为图像序列。

    CARDIAC IMAGE PROCESSING AND ANALYSIS
    8.
    发明申请
    CARDIAC IMAGE PROCESSING AND ANALYSIS 有权
    CARDIAC图像处理和分析

    公开(公告)号:US20110274326A1

    公开(公告)日:2011-11-10

    申请号:US13145920

    申请日:2010-01-18

    IPC分类号: G06K9/00

    摘要: A system for visualizing a myocardium represented by a cardiac image comprises a resampling means and a visualizing means. The resampling means re-samples the intensity levels at sampling points on a plurality of curved surfaces, each curved surface enclosing at least part of a heart cavity and zero or more of the plurality of curved surfaces and being enclosed by the remaining curved surfaces of the plurality of curved surfaces, the plurality of curved surfaces together covering a hollow region in the cardiac image, the hollow region comprising the outer cavity walls of a group of at least one heart cavity. The visualizing means is arranged for visualizing at least part of at least one of the plurality of curved surfaces, using resampled intensity levels obtained from the resampling means. The group of at least one heart cavity may be the left atrium alone. It may also be the complete heart.

    摘要翻译: 用于可视化由心脏图像表示的心肌的系统包括重采样装置和可视化装置。 重采样装置在多个弯曲表面上的采样点处重新采样强度水平,每个弯曲表面包围心腔的至少一部分和多个弯曲表面中的零个或多个,并且被剩余的弯曲表面包围 多个弯曲表面,所述多个弯曲表面一起覆盖心脏图像中的中空区域,所述中空区域包括一组至少一个心脏腔的外腔壁。 可视化装置被布置成使用从重采样装置获得的再采样的强度级别可视化多个曲面中的至少一个曲面的至少一部分。 至少一个心腔的组可以是单独的左心房。 它也可能是完整的心脏。

    Image processing system for automatic adaptation of a 3-d mesh model onto a 3-d surface of an object
    9.
    发明申请
    Image processing system for automatic adaptation of a 3-d mesh model onto a 3-d surface of an object 有权
    用于将3-d网格模型自动适应到物体的3-d表面上的图像处理系统

    公开(公告)号:US20060078194A1

    公开(公告)日:2006-04-13

    申请号:US10535466

    申请日:2003-11-14

    IPC分类号: G06K9/00

    摘要: An image processing system having means of automatic adaptation of 3-D surface Model to image features, for Model-based image segmentation, comprising: dynamic adaptation means for adapting the Model resolution to image features including locally setting higher resolution when reliable image features are found and setting lower resolution in the opposite case. This system comprises estimation means for estimating a feature confidence parameter for each image feature. The model resolution is locally adapted according to said parameter. The feature confidence parameter depends on the feature distance and on the estimation of quality of this feature including estimation of noise. The large distances and the noisy, although close features are penalized. The resolution of the Model is decreased in absence of confidence and is gradually increased with the rise of feature confidence.

    摘要翻译: 一种图像处理系统,具有自动适应图形特征的图像特征的装置,用于基于模型的图像分割,包括:用于将模型分辨率适应于图像特征的动态适应装置,包括当发现可靠的图像特征时本地设置较高分辨率 并在相反的情况下设置较低的分辨率。 该系统包括用于估计每个图像特征的特征置信度参数的估计装置。 模型分辨率根据所述参数进行局部调整。 特征置信度参数取决于特征距离以及该特征的质量估计,包括估计噪声。 很大的距离和嘈杂,虽然密切的特点被惩罚。 模型的分辨率在没有信心的情况下下降,随着特征信心的增加而逐渐增加。

    Image processing system and medical examination apparatus for correlating features in medical images
    10.
    发明申请
    Image processing system and medical examination apparatus for correlating features in medical images 失效
    图像处理系统和医学图像相关特征的医学检查仪器

    公开(公告)号:US20060056669A1

    公开(公告)日:2006-03-16

    申请号:US10536813

    申请日:2003-11-20

    IPC分类号: G06K9/00

    摘要: An image processing system, for correlating shapes in multi-dimensional images (m-D), comprising image data processing means for estimating a similarity measure including computing means for: estimating two image signals (f(x), g(y)) representing shapes defined in respective windows (W1, W2) in two multi-dimensional images; using a Hermite Transform (HT) applied to both said image signals for performing an evaluation of two first sets of scalar valued Hermite coefficients (fI, gI, FI, GI), from which a combination yields a transformed set of scalar valued Hermite coefficients {KI}; applying the inverse Hermite Transform (HT-1) to the transformed set of scalar valued Hermite coefficients {KI} to achieve the computation of a windowed correlation function (K(v)); and estimating the maximum of said windowed correlation function as the wanted similarity measure to correlate the shapes; and means for displaying the correlated shapes and/or processed images. This system has means for applying rotation, translation and scale change on the scalar valued Hermite coefficients of the image signals and the correlation function, instead of on the images. This system can correlate very complex shapes having parts that locally show different deformations from the global complex shapes. The invention also relates to an examination apparatus coupled to this image processing system.

    摘要翻译: 一种用于相关多维图像(mD)中的形状的图像处理系统,包括用于估计包括计算装置的相似性度量的图像数据处理装置,用于:估计表示形状的两个图像信号(f(x),g(y)) 在两个多维图像中的各个窗口(W 1,W 2)中; 使用应用于两个所述图像信号的Hermite变换(HT)来执行两组标量Hermite系数(fI,gI,FI,GI)的评估,组合产生经变换的标量Hermite系数集合{ KI}; 将逆Hermite变换(HT-1)应用于经变换的标量Hermite系数集合{KI},以实现窗口相关函数(K(v))的计算; 并且将所述窗口相关函数的最大值估计为所需相似性度量以使形状相关; 以及用于显示相关形状和/或处理图像的装置。 该系统具有用于对图像信号的标量Hermite系数和相关函数而不是图像应用旋转,平移和缩放变化的装置。 该系统可以将具有局部显示与全局复杂形状不同变形的部分的非常复杂的形状相关联。 本发明还涉及耦合到该图像处理系统的检查装置。