US 11,657,519 B2
Method for deformation correction
Marcus Pfister, Bubenreuth (DE); Katharina Breininger, Erlangen (DE); and Patrick Loeber, Erlangen (DE)
Assigned to Siemens Healthcare GmbH, Erlangen (DE)
Filed by Siemens Healthcare GmbH, Erlangen (DE)
Filed on Jan. 26, 2021, as Appl. No. 17/159,143.
Claims priority of application No. 10 2020 201 489.2 (DE), filed on Feb. 7, 2020; and application No. 10 2020 201 928.2 (DE), filed on Feb. 17, 2020.
Prior Publication US 2021/0248762 A1, Aug. 12, 2021
Int. Cl. G06T 7/33 (2017.01); G06T 5/00 (2006.01); G06T 3/00 (2006.01)
CPC G06T 7/337 (2017.01) [G06T 3/0068 (2013.01); G06T 5/006 (2013.01); G06T 2207/20081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for deformation correction, the method comprising:
receiving a preoperative three-dimensional (3D) image data set from an examination region of an examination object;
generating a segmented 3D image data set, the generating of the segmented 3D image data set comprising segmenting at least one anatomical structure in the preoperative 3D image data set;
acquiring image data from the examination region, wherein a medical object is arranged in the examination region;
identifying a mapping of the medical object in the image data;
registering the segmented 3D image data set with the image data;
generating an overlay data set based on the segmented 3D image data set and the image data;
displaying, by a display unit, a visual representation of the overlay data set;
defining a position of a deviation between the image data and the segmented 3D image data set in the visual representation of the overlay data set;
determining a deformation rule based on the defined position of the deviation and the identified mapping of the medical object such that the deviation between the image data and the segmented 3D image data set is reduced;
generating a corrected overlay data set, the generating of the corrected overlay data set comprising applying the deformation rule to the segmented 3D image data set; and
providing the corrected overlay data set.