CPC G06T 7/33 (2017.01) [G06T 2207/10081 (2013.01); G06T 2207/10088 (2013.01); G06T 2207/10104 (2013.01); G06T 2207/10116 (2013.01); G06T 2207/20221 (2013.01); G06T 2207/30012 (2013.01)] | 24 Claims |
1. A method of registering three-dimensional (3D) image data to two-dimensional (2D) image data, comprising:
receiving a 3D dataset, a 2D dataset, and a plurality of annotations that are associated with a first plurality of features in the 3D image data;
defining a plurality of volumetric masks in the 3D dataset using the plurality of annotations;
applying each volumetric mask to the 3D dataset to generate a first plurality of 3D subsets of the 3D dataset;
for each 3D subset, performing a separate locally-rigid registration of the 3D subset to the 2D dataset to generate a second plurality of 3D subsets; and
based on the second plurality of 3D subsets, associating the plurality of annotations with a second plurality of features in the 2D image data.
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