Verfahren und Vorrichtung zur Erzeugung eines 2D-Panoramabildes

Details

Veröffentlichungs-Nr.

EP3685752

Aktenzeichen

EP19153361

Anmeldetag

23. Januar 2019

Veröffentlichung

25. Oktober 2023

Erteilung

25. Oktober 2023

Rechtsraum

EP

IPC

A61B6/14A61B6/00G06T11/00

Abstract

The present invention proposes a method for producing a 2D panoramic image of an oral cavity (6) comprising the steps: A) provision of a plurality of projection images acquired during an at least partial revolution of a recording unit comprising a radiation source (2) and an electronic image sensor (3) about the oral cavity (6) in a given position; B) calculation of an image including at least one anatomical feature from the plurality of projection images using a calculation rule with reconstruction parameters; C) provision of a model of the at least one anatomical feature, which describes the at least one anatomical feature in a target position in an image; D) identification of the at least one anatomical feature in the calculated image; E) determination of a deviation between an actual position of the at least one identified anatomical feature in the calculated image and the target position of the at least one anatomical feature in the model by applying a metric; F) variation of at least one of the reconstruction parameters and recalculation of at least one part of the image that shows the at least one anatomical feature using the calculation rule and the at least partially varied reconstruction parameters or variation of a pixel transformation and application of the pixel transformation to at least one part of the calculated image that shows the at least one anatomical feature, so that at least this part of the image is recalculated; G) derivation of the 2D panoramic image from the recalculated image; and H) outputting the 2D panoramic image.

Anmelder

Firmen

DENTSPLY SIRONA Inc.
SIRONA Dental Systems GmbH

Land

🇺🇸 USA

Fachgebiete