Method and computer program for filtering and particularly segmenting and/or analyzing anatomic structures in a digital image

摘要

The present invention relates to a method for filtering, and particularly segmenting and/or analyzing anatomic structures in an image (1) comprising pixels, wherein a pixel value is associated to each pixel, and wherein the structure tensor is determined for each pixel (P) of the image (1) by means of the pixel values within a predefined area centered around the respective pixel (P) for which the structure tensor is determined, and wherein the pixel value of each pixel (P) of said image (1) is filtered by applying a filter (2, 2', 2") to the pixel value of each pixel (P), wherein said filter (2) assigns a filter value to each of said pixels (P), wherein determining the respective filter value involves determining an average of the pixel values of pixels of a first region (21) of said image (1), which first region (21) comprises or lies adjacent to the pixel (P) associated to the respective pixel value to which said filter (2, 2', 2") is applied, and wherein said first region (21, 25, 29) is oriented along the direction (D) of the eigenvector associated to the smaller eigenvalue of the two eigenvalues of the structure tensor associated to the pixel value to which said filter (2, 2', 2") is applied. Further, the invention is related to a corresponding computer program.