Method and apparatus for segmentation of a left ventricular epicardium
    1.
    发明授权
    Method and apparatus for segmentation of a left ventricular epicardium 有权
    用于左心室心外膜分割的方法和装置

    公开(公告)号:US06757414B1

    公开(公告)日:2004-06-29

    申请号:US09652739

    申请日:2000-08-31

    IPC分类号: G06K900

    摘要: A method and apparatus is provided for segmenting a left ventricular epicardium in a magnetic resonance image. Image shape, gradients, and intensity are used to locate the epicardial boundary. Specifically, an intensity map corresponding to acquired data is produced and refined so as to produce a classification map having variations in intensity. The variations, representing the epicardial boundary, are detected and the epicardial boundary may then be clearly identified in the MR image.

    摘要翻译: 提供了一种用于在磁共振图像中分割左心室心外膜的方法和装置。 图像形状,渐变和强度用于定位心外膜边界。 具体地说,产生并精炼对应于获取的数据的强度图,以产生强度变化的分类图。 检测代表心外膜边界的变化,然后可以在MR图像中清楚地识别心外膜边界。

    Method and apparatus for extracting a left ventricular endocardium from MR cardiac images
    2.
    发明授权
    Method and apparatus for extracting a left ventricular endocardium from MR cardiac images 失效
    从MR心脏图像中提取左心室心内膜的方法和装置

    公开(公告)号:US06980682B1

    公开(公告)日:2005-12-27

    申请号:US09721606

    申请日:2000-11-22

    IPC分类号: G06K9/00 G06T5/00

    摘要: A method and apparatus is provided for segmenting a left ventricular endocardium in a magnetic resonance image. Image shape, size, gradients, intensity, and connectivity are used to locate the endocardial boundary. Specifically, a series of dilations and refinements to a mask corresponding to acquired data is performed. Variations in intensity, representing the endocardial boundary, are detected, and the endocardial boundary may then be clearly identified in the MR image.

    摘要翻译: 提供了一种用于在磁共振图像中分割左心室心内膜的方法和装置。 图像形状,大小,梯度,强度和连通性用于定位心内膜边界。 具体地,执行对与获取的数据相对应的掩模的一系列扩展和细化。 检测强度的变化,代表心内膜边界,然后可以在MR图像中清楚地识别心内膜边界。

    Method and apparatus for fitting a smooth boundary to segmentation masks
    3.
    发明授权
    Method and apparatus for fitting a smooth boundary to segmentation masks 有权
    用于将平滑边界拟合到分割蒙版的方法和装置

    公开(公告)号:US06771803B1

    公开(公告)日:2004-08-03

    申请号:US09718708

    申请日:2000-11-22

    IPC分类号: G06K900

    摘要: A method and apparatus is provided for producing a smooth closed curve from a binary mask such as the type produced when segmenting various parts of a human body. Points defining the segmentation boundary are transformed into a set of polar coordinates. The set of coordinates is thresholded and averaged, and then smoothed using a window smoothing technique. The resulting boundary points are curve fit to produce the smooth closed curve.

    摘要翻译: 提供了一种从二进制掩模产生平滑闭合曲线的方法和装置,例如在分割人体的各个部分时产生的类型。 定义分割边界的点被转换成一组极坐标。 将坐标集合进行阈值化和平均,然后使用窗口平滑技术进行平滑。 所得到的边界点是曲线拟合以产生平滑闭合曲线。

    Method and apparatus for processing partial lines of scanned images and communicating associated data over a network
    4.
    发明授权
    Method and apparatus for processing partial lines of scanned images and communicating associated data over a network 失效
    用于处理扫描图像的部分行并通过网络传送关联数据的方法和装置

    公开(公告)号:US06442290B1

    公开(公告)日:2002-08-27

    申请号:US09473244

    申请日:1999-12-27

    IPC分类号: G06K900

    摘要: A method for processing partial lines of image data from a detector, each partial line of data representing a portion of an image pixel matrix, includes: (a) communicating partial lines of image data over a network from an imaging system to a remote facility; (b) receiving partial lines of image data in a first sequence; (c) assigning to each partial line of image data in a first series a position in a second sequence by reference to a plurality of base addresses; (d) altering the base addresses; and (e) assigning to each partial line of image data in a second series a position in the second sequence by reference to the altered base addresses.

    摘要翻译: 一种用于处理来自检测器的部分行的图像数据的方法,每个表示图像像素矩阵的一部分的部分数据线包括:(a)通过网络将图像数据的部分线从成像系统传送到远程设备; (b)以第一序列接收图像数据的部分行; (c)通过参考多个基地址以第一序列分配第二序列中的位置的图像数据的每个部分线; (d)更改基地址; 和(e)通过参考改变的基地址将第二序列中的图像数据的每个部分行分配给第二序列中的位置。

    Display of text on medical images
    5.
    发明授权
    Display of text on medical images 失效
    显示医学图像上的文字

    公开(公告)号:US06429878B1

    公开(公告)日:2002-08-06

    申请号:US09473389

    申请日:1999-12-28

    IPC分类号: G06T1160

    CPC分类号: G06T11/60

    摘要: A graphic workstation receives digitized medical images and the user creates textual information that is to be displayed on the images. Instead of overlaying the text, the text data is blended with the image data such that the text appears semi-transparent and when displayed the underlying image data may be seen. The medical image may be fully restored from the blended image by a calculation based upon the blended image, the text data and alpha.

    摘要翻译: 图形工作站接收数字化的医学图像,并且用户创建要在图像上显示的文本信息。 代替覆盖文本,将文本数据与图像数据混合,使得文本显示为半透明,并且当显示时,可以看到底层图像数据。 可以通过基于混合图像,文本数据和α的计算,从混合图像中完全恢复医学图像。

    Semi-transparent medical image overlays
    6.
    发明授权
    Semi-transparent medical image overlays 有权
    半透明医学影像叠加

    公开(公告)号:US06747665B1

    公开(公告)日:2004-06-08

    申请号:US09307875

    申请日:1999-05-10

    IPC分类号: G09G500

    CPC分类号: G06T15/503 G06T15/00

    摘要: The present invention, in one form, is a system for simultaneously displaying an image object generated from an imaging system and a graphical object so that each object is fully visible. More specifically, after generating the image object, a graphical object is generated having a partial opacity value. The image object and graphical object are then sorted and combined so that the graphical object is in front of, or overlays, the image object without blocking or obscuring the information included in the image object. Particularly, a final image is generated by combining a destination value for components of each object.

    摘要翻译: 本发明以一种形式是用于同时显示从成像系统和图形对象生成的图像对象的系统,使得每个对象是完全可见的。 更具体地,在生成图像对象之后,生成具有部分不透明度值的图形对象。 然后对图像对象和图形对象进行排序和组合,使得图形对象位于图像对象的前面或覆盖物上,而不阻塞或模糊包含在图像对象中的信息。 特别地,通过组合每个对象的分量的目的地值来生成最终图像。

    Processing text for display on medical images
    7.
    发明授权
    Processing text for display on medical images 失效
    处理医疗图像显示文字

    公开(公告)号:US06411299B1

    公开(公告)日:2002-06-25

    申请号:US09475376

    申请日:1999-12-30

    IPC分类号: G06T1100

    CPC分类号: G06T11/60

    摘要: A graphic workstation receives digitized medical images and the user creates textual information that is to be displayed on the images. The text along with associated properties are packaged as a data structure along with a set of properties, and the data structure is passed through a pipeline having a series of formatters. The formatters are easily configured by the user to modify the properties of the text data structures as they flow through the pipeline prior to being rendered on a display.

    摘要翻译: 图形工作站接收数字化的医学图像,并且用户创建要在图像上显示的文本信息。 文本以及关联属性被打包为数据结构以及一组属性,并且数据结构通过具有一系列格式化程序的管道传递。 格式化器可以由用户轻松地配置,以便在文本数据结构在显示器上呈现之前通过流水线修改文本数据结构的属性。

    Method and apparatus for processing partial lines of scanned images
    8.
    发明授权
    Method and apparatus for processing partial lines of scanned images 失效
    用于处理扫描图像的部分行的方法和装置

    公开(公告)号:US06404909B2

    公开(公告)日:2002-06-11

    申请号:US09116683

    申请日:1998-07-16

    IPC分类号: G06K900

    摘要: Partial lines of data representative of adjacent pixels in an image pixel matrix are reordered to facilitate reconstitution of a scanned image. The partial lines are received by a signal processing circuit and are assigned unique addresses by reference to base address and offset values. Each partial line is then stored in a memory address corresponding to the assigned address. The values of the base addresses and offsets may be altered to accommodate different image matrix sizes and scanning patterns.

    摘要翻译: 代表图像像素矩阵中的相邻像素的部分数据行被重新排序以便于重构扫描图像。 部分线路由信号处理电路接收,并通过参考基地址和偏移值分配唯一的地址。 然后将每个部分行存储在与分配的地址对应的存储器地址中。 可以改变基址和偏移的值以适应不同的图像矩阵大小和扫描模式。