US 11,657,518 B2
Method for deformable 3D-2D registration using multiple locally rigid registrations
Michael Ketcha, Baltimore, MD (US); Wathudurage Tharindu deSilva, Baltimore, MD (US); Ali Uneri, Baltimore, MD (US); Jean-Paul Wolinsky, Towson, MD (US); and Jeffrey H. Siewerdsen, Baltimore, MD (US)
Assigned to The Johns Hopkins University, Baltimore, MD (US)
Filed by The Johns Hopkins University, Baltimore, MD (US)
Filed on May 11, 2022, as Appl. No. 17/741,782.
Application 17/741,782 is a continuation of application No. 16/291,012, filed on Mar. 4, 2019, abandoned.
Application 16/291,012 is a continuation of application No. 15/381,494, filed on Dec. 16, 2016, granted, now 10,262,424, issued on Apr. 16, 2019.
Claims priority of provisional application 62/269,371, filed on Dec. 18, 2015.
Prior Publication US 2022/0270271 A1, Aug. 25, 2022
Int. Cl. G06T 7/33 (2017.01)
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
OG exemplary drawing
 
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.