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    • 8. 发明授权
    • Feature processing for lung nodules in computer assisted diagnosis
    • 计算机辅助诊断肺结节特征处理
    • US08107699B2
    • 2012-01-31
    • US12170639
    • 2008-07-10
    • Lin HongChristopher V. AlvinoHong Shen
    • Lin HongChristopher V. AlvinoHong Shen
    • G06K9/00
    • G06T7/0012G06T2207/30061G06T2207/30064
    • Feature processing is provided for lung nodules in computer-assisted diagnosis. A feature that may better distinguish nodules from background is extracted using a Hough transform. Rather than relying on a specific boundary shape, the Hough transform accumulates evidence associated with a region, such as a ring region. The accumulated evidence provides a feature score without requiring a nodule to fit a specific shape. In another approach, a background level is determined from extracted features. Rather than attempting to normalize an image prior to extraction, the features are normalized. The feature normalization and generalized Hough transform extraction may be used together or alone.
    • 在计算机辅助诊断中为肺结节提供特征处理。 使用霍夫变换提取可以更好地区分结节与背景的特征。 霍夫变换不是依赖于特定的边界形状,而是累积与区域相关联的证据,例如环形区域。 积累的证据提供了一个特征分数,而不需要结节来适应特定的形状。 在另一种方法中,从提取的特征确定背景级别。 在尝试在提取之前对图像进行归一化,而不是将特征归一化。 特征归一化和广义霍夫变换提取可以一起使用或单独使用。
    • 9. 发明授权
    • Method and system for locating opaque regions in chest X-ray radiographs
    • 用于定位胸部X线片中不透明区域的方法和系统
    • US08103077B2
    • 2012-01-24
    • US11951372
    • 2007-12-06
    • Lin HongYing LiHong Shen
    • Lin HongYing LiHong Shen
    • G06K9/00
    • G06T7/12
    • A method and system for locating an opaque region, such as a heart region in a chest X-ray radiograph is disclosed. In order to segment a heart region in a chest X-ray radiograph, a heart region boundary is generated based on lung boundaries in the chest X-ray radiograph and an average heart region model. A location of the lower boundary of the heart region in the chest X-ray radiograph is then determined. Left and right portions of the heart region boundary are independently registered to corresponding portions of the lung boundaries, and upper and lower portions of the heart region boundary are adjusted based on the left and right portions in order to form a smooth contour.
    • 公开了一种用于定位不透明区域的方法和系统,例如胸部X射线照片中的心脏区域。 为了在胸部X射线照片中分割心脏区域,基于胸部X射线照片和平均心脏区域模型中的肺边界产生心脏区域边界。 然后确定胸部X线片中的心脏区域的下边界的位置。 心脏区域边界的左右部分独立地登记到肺边界的对应部分,并且基于左右部分来调整心脏区域边界的上部和下部以形成平滑轮廓。