CPC G06T 7/143 (2017.01) [G06T 7/0012 (2013.01); G06T 7/174 (2017.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/20092 (2013.01); G06T 2207/20128 (2013.01); G06T 2207/30004 (2013.01)] | 16 Claims |
1. A computer-implemented method of determining corrections for correcting segmentation of medical image data, which includes a computer-implemented method of determining distributions of corrections for correcting the segmentation of medical image data comprising:
acquiring initial segmented patient image data which describes an initial segmentation of digital medical images of an anatomical body part of a first plurality of patients;
acquiring segmentation correction data which describes a correction of the initial segmentation for each patient of the first plurality of patients;
acquiring atlas data which describes an image-based model of the anatomical body part;
determining correction transformation data based on the segmentation correction data and the atlas data, wherein the correction transformation data describes a transformation for transforming the corrections into a reference system used for describing positions in the image-based model;
determining transformed correction data based on the segmentation correction data and the correction transformation data by applying the transformation to the corrections to determine transformed corrections;
determining combined correction data based on the transformed correction data, wherein the combined correction data describes the results of a statistical analysis of the corrections;
wherein the computer-implemented method of determining corrections for correcting the segmentation of medical image data further comprises steps in which:
segmented individual patient image data is acquired which describes a segmentation of the anatomical body part of the patient in a digital individual medical image;
correction re-transformation data is determined based on the atlas data and the individual patient image data, wherein the correction re-transformation data describes a transformation for transforming the results of the statistical analysis of the corrections into the reference system used for describing positions in the digital individual medical image;
re-transformed correction data is determined based on the combined correction data and the correction re-transformation data; and
corrected segmented patient image data is determined based on the individual patient image data and the re-transformed correction data, wherein the corrected segmented patient image data describes a result of applying the corrections to the segmentation of the anatomical body part of the patient in the digital individual medical image.
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