利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

43 条记录 (耗时 0.042 秒)

    Ultrasound image processing
    7.
    发明授权
    Ultrasound image processing 有权
    超声图像处理

    公开(公告)号：US08837792B2

    公开(公告)日：2014-09-16

    申请号：US13151303

    申请日：2011-06-02

    申请人： Sivan Gleichman ,  Eugene Walach

    发明人： Sivan Gleichman ,  Eugene Walach

    IPC分类号： G06K9/00

    CPC分类号： G01S7/52036 ,  G01S7/52071

    摘要： Method, system, and computer program product are provided for processing an ultrasound image, in particular an image of inhomogeneous tissue. The method includes: segmenting tissue in a received ultrasound image; creating a mask of pixels centred on a pixel in a tissue area, wherein the pixels in the mask are within a given decibel range of the central pixel and within a segmentation boundary; and assigning an attenuation to the central pixel by estimating the attenuation of the pixels in the mask. The received ultrasound image may be a raw image the method may include creating an image of an attenuation mapping of attenuations for each pixel in a tissue area. Alternatively, the received ultrasound image may be a time gain compensated image the method may include determining areas of relatively high or low attenuation.

    摘要翻译： 提供方法，系统和计算机程序产品用于处理超声图像，特别是不均匀组织的图像。 该方法包括：在接收的超声图像中分割组织; 创建以组织区域中的像素为中心的像素的掩模，其中所述掩模中的像素在所述中心像素的给定分贝范围内且在分割边界内; 以及通过估计所述掩模中的所述像素的衰减来向所述中心像素分配衰减。 所接收的超声图像可以是原始图像，该方法可以包括创建针对组织区域中的每个像素的衰减的衰减映射的图像。 或者，接收的超声图像可以是时间增益补偿图像，该方法可以包括确定相对高或低衰减的区域。

    Method and system for automatic analysis of blood vessel structures to identify calcium or soft plaque pathologies
    8.
    发明授权
    Method and system for automatic analysis of blood vessel structures to identify calcium or soft plaque pathologies 有权
    血管结构自动分析方法和系统，以鉴别钙或软斑病变

    公开(公告)号：US07940977B2

    公开(公告)日：2011-05-10

    申请号：US11562906

    申请日：2006-11-22

    申请人： Grigory Begelman ,  Roman Goldenberg ,  Shai Levanon ,  Shay Ohayon ,  Eugene Walach

    发明人： Grigory Begelman ,  Roman Goldenberg ,  Shai Levanon ,  Shay Ohayon ,  Eugene Walach

    IPC分类号： G06K9/00

    CPC分类号： G06T7/62 ,  G06T2207/10081 ,  G06T2207/20044 ,  G06T2207/30101 ,  Y10S128/922

    摘要： A method of identifying a calcium and/or a soft plaque deposit in a blood vessel using imaging data of the blood vessel is provided. A first threshold is applied to a slice of three-dimensional imaging data of a blood vessel to define voxels above the first threshold. A maximum intensity of the blood vessel is identified from the defined voxels. A distance from the identified maximum intensity to a center of the blood vessel is calculated and is compared with a distance threshold. If the calculated distance is greater than the distance threshold, a calcium deposit is identified. A second threshold is applied to the slice to define voxels below the second threshold. If a calcium deposit is identified or if the defined voxels below the threshold have a half-moon shape, a soft plaque deposit is identified.

    摘要翻译： 提供了使用血管成像数据鉴定血管中钙和/或软斑块沉积物的方法。 将第一阈值应用于血管的三维成像数据的切片以限定高于第一阈值的体素。 从定义的体素识别血管的最大强度。 计算与识别的最大强度到血管中心的距离，并将其与距离阈值进行比较。 如果计算出的距离大于距离阈值，则确定钙沉积物。 将第二阈值应用于切片以定义低于第二阈值的体素。 如果钙沉积物被识别或者如果低于阈值的限定体素具有半月形状，则识别出软斑块沉积物。

    Correcting segmentation errors in OCR
    9.
    发明授权
    Correcting segmentation errors in OCR 有权
    纠正OCR中的分段错误

    公开(公告)号：US07406201B2

    公开(公告)日：2008-07-29

    申请号：US10727926

    申请日：2003-12-04

    申请人： Andre Heilper ,  Eugene Walach

    发明人： Andre Heilper ,  Eugene Walach

    IPC分类号： G06K9/72

    CPC分类号： G06K9/723 ,  G06K9/344 ,  G06K2209/01

    摘要： A method for encoding characters includes identifying one or more sequences of the character codes that are likely to be generated due a segmentation error in application of a pattern recognition process, and associating a respective extension character code with each of the sequences. The area of an image containing characters is divided into segments, such that each segment contains approximately one character. The pattern recognition process is applied to each of the segments in order to generate an input string of character codes. At least one of the identified sequences of the character codes in the input string is replaced with the respective extension character code so as to generate a modified string. The output string is determined by comparing the modified string to a directory of known strings.

    摘要翻译： 用于编码字符的方法包括识别在应用模式识别过程中由于分段错误而可能产生的字符代码的一个或多个序列，并且将相应的扩展字符代码与每个序列相关联。 包含字符的图像的区域被划分成段，使得每个段包含大约一个字符。 模式识别过程被应用于每个段以便生成字符代码的输入字符串。 输入字符串中所识别的字符代码序列中的至少一个被替换为相应的扩展字符代码，以便生成修改的字符串。 通过将修改的字符串与已知字符串的目录进行比较来确定输出字符串。

    METHOD AND SYSTEM FOR AUTOMATIC ANALYSIS OF BLOOD VESSEL STRUCTURES TO IDENTIFY PATHOLOGIES
    10.
    发明申请
    METHOD AND SYSTEM FOR AUTOMATIC ANALYSIS OF BLOOD VESSEL STRUCTURES TO IDENTIFY PATHOLOGIES 有权
    血管结构自动分析方法与系统识别病理学

    公开(公告)号：US20080103389A1

    公开(公告)日：2008-05-01

    申请号：US11562906

    申请日：2006-11-22

    申请人： Grigory Begelman ,  Roman Goldenberg ,  Shai Levanon ,  Shay Ohayon ,  Eugene Walach

    发明人： Grigory Begelman ,  Roman Goldenberg ,  Shai Levanon ,  Shay Ohayon ,  Eugene Walach

    IPC分类号： A61B5/05

    CPC分类号： G06T7/62 ,  G06T2207/10081 ,  G06T2207/20044 ,  G06T2207/30101 ,  Y10S128/922

    摘要： A method of identifying a calcium and/or a soft plaque deposit in a blood vessel using imaging data of the blood vessel is provided. A first threshold is applied to a slice of three-dimensional imaging data of a blood vessel to define voxels above the first threshold. A maximum intensity of the blood vessel is identified from the defined voxels. A distance from the identified maximum intensity to a center of the blood vessel is calculated and is compared with a distance threshold. If the calculated distance is greater than the distance threshold, a calcium deposit is identified. A second threshold is applied to the slice to define voxels below the second threshold. If a calcium deposit is identified or if the defined voxels below the threshold have a half-moon shape, a soft plaque deposit is identified.

    摘要翻译： 提供了使用血管成像数据鉴定血管中钙和/或软斑块沉积物的方法。 将第一阈值应用于血管的三维成像数据的切片以限定高于第一阈值的体素。 从定义的体素识别血管的最大强度。 计算与识别的最大强度到血管中心的距离，并将其与距离阈值进行比较。 如果计算出的距离大于距离阈值，则确定钙沉积物。 将第二阈值应用于切片以定义低于第二阈值的体素。 如果钙沉积物被识别或者如果低于阈值的限定体素具有半月形状，则识别出软斑块沉积物。