Verfahren zur Bestimmung einer Registrierung zwischen einem 3D-Bild und einem Satz von mindestens Zwei 2D-Bildern

Details

Veröffentlichungs-Nr.

EP3444779

Aktenzeichen

EP17186273

Anmeldetag

15. August 2017

Veröffentlichung

28. September 2022

Erteilung

28. September 2022

Rechtsraum

EP

IPC

G06T7/33

Abstract

Method for determining or updating a registration between a 3D image (1) of a region of interest (26) and a set of at least two 2D images (2, 3) of the same region of interest (26), wherein the 2D images (2, 3) are acquired using different imaging geometries, wherein the registration is described by a set of registration parameters, comprising the steps: - Selecting at least one respective contour point (4 - 7) in the 3D image (1) for each 2D image (2, 3), - Determining a 2D position (8 - 11) of a respective depiction of each contour point (4 - 7) in the respective 2D image (2, 3), - For each contour point (4 - 7) determining at least one condition for the registration parameters that needs to be fulfilled to map the respective contour point (4 - 7) to the respective 2D position (8 - 11) in the respective 2D image (2, 3), - Determining an updated set of registration parameters by solving a set of equations or an optimization problem that depends on the conditions.

Anmelder

Firmen

Siemens Healthcare GmbH
Friedrich-Alexander-Universität Erlangen-Nürnberg

Land

🇩🇪 Deutschland

Fachgebiete