Verfahren zur Ausrichtung eines Dreidimensionalen Modells eines Gebisses eines Patienten auf ein Bild des Gesichtes des Patienten, das mit einer Kamera Aufgenommen Wurde

Details

Veröffentlichungs-Nr.

EP3530232

Aktenzeichen

EP18157809

Anmeldetag

21. Februar 2018

Veröffentlichung

28. April 2021

Erteilung

28. April 2021

Rechtsraum

EP

IPC

A61C13/00A61C9/00A61C13/34

Abstract

Computer implemented method for aligning a three-dimensional model (6) of a patient's dentition to an image of the face of the patient including the mouth opening recorded by a camera (3), comprising: estimating the positioning of the camera (3) relative to the face of the patient during recording of the image, retrieving the three-dimensional model (6) of the dentition of the patient, rendering a two-dimensional image (7) of the dentition of the patient using a virtual camera (8) processing the three-dimensional model (6), carrying out feature detection in a dentition area in the mouth opening of the image (1) of the patient recorded by the camera (3) and in the rendered image (7), calculating a measure of deviation between the detected feature images of both images (1 and 7), minimizing the deviation measure to determine the best fitting positioning of the virtual camera (8).

Anmelder

Firma

Ivoclar Vivadent AG

Land

🇱🇮 Liechtenstein

Fachgebiete