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Semi-local active contour for a faint region detection in knee CT images

机译:半局部活动轮廓用于膝部CT图像中的微弱区域检测

摘要

An exemplary method of detecting a structure in a three-dimensional (3D) computed tomography (“CT”) knee image is provided. An intensity prior mask is created based on a two-dimensional (2D) slice of the CT image. A seed point in the 2D slice is received or estimated. The seed point is in a Hoffa's pad region. A geometric prior mask is created based on the seed point. The intensity prior mask and the geometric mask are combined to form a region mask. A level-set contour is segmented from the 2D slice. The step of segmenting is constrained by the region mask.
机译:提供了一种在三维(3D)计算机断层摄影(“ CT”)膝盖图像中检测结构的示例性方法。基于CT图像的二维(2D)切片创建强度先验掩模。接收或估计2D切片中的种子点。种子点在霍法氏垫区域。基于种子点创建几何先验蒙版。强度先验掩模和几何掩模被组合以形成区域掩模。从2D切片中分割出一个水平设置的轮廓。分割的步骤受区域掩模的约束。

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