US 12,008,687 B2
Annular structure representation
Yue Zhang, Long Island City, NY (US); Abdoul Amadou, London (GB); Ingmar Voigt, Erlangen (DE); Viorel Mihalef, North Brunswick, NJ (US); Rui Liao, Princeton Junction, NJ (US); Tommaso Mansi, Plainsboro, NJ (US); Matthias John, Erfurt (DE); Bimba Rao, San Jose, CA (US); and Helene C. Houle, San Jose, CA (US)
Assigned to Siemens Healthineers AG, Forchheim (DE)
Filed by Siemens Healthcare GmbH, Erlangen (DE)
Filed on Feb. 12, 2021, as Appl. No. 17/174,471.
Claims priority of provisional application 62/979,497, filed on Feb. 21, 2020.
Claims priority of application No. 20166104 (EP), filed on Mar. 27, 2020.
Prior Publication US 2021/0264644 A1, Aug. 26, 2021
Int. Cl. G06T 11/00 (2006.01); G06T 7/00 (2017.01)
CPC G06T 11/003 (2013.01) [G06T 7/0012 (2013.01); G06T 2207/10088 (2013.01); G06T 2207/10116 (2013.01); G06T 2207/10132 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/30084 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for constructing a representation of an annular structure associated with an anatomical object, the method comprising:
receiving three-dimensional image data of the anatomical object;
detecting a first landmark point and a second landmark point on the annular structure;
determining a plane positioned between the first landmark point and the second landmark point and oriented in accordance with a predefined angular relationship to a line connecting the first landmark point and the second landmark point;
subsequently determining a third landmark point on the annular structure that lies in the determined plane;
generating the representation of the annular structure using at least the first landmark point, the second landmark point, and the third landmark point, wherein the generating comprises: (1) determining a three-dimensional box comprising at least the first landmark point, the second landmark point, and the third landmark point; (2) performing a three-dimensional structure detection within the three-dimensional box to produce a probability map indicative of at least one three-dimensional point location on the annular structure; and (3) analyzing the probability map to generate an annular ring representative of the annular structure; and
outputting the representation.