US 2023/0390033 A1 · THREE-DIMENSIONAL TOOTH MODELING USING A TWO-DIMENSIONAL X-RAY IMAGE

Abstract

A scan model that is a mathematical model to simulate an imaging process performed by an x-ray imaging device that created a two-dimensional x-ray image of at least one tooth is generated. The scan model uses an initial estimate of one or more parameters of the x-ray imaging device. The one or more parameters include a scan angle parameter indicative of a scan angle of the x-ray imaging device. A two-dimensional contour of a three-dimensional model is adjusted to cause a first component of the two-dimensional contour to approximately align with a second component of the two-dimensional x-ray image. The scan model is calibrated based on data obtained from adjusting the two-dimensional contour.

Claims20

Dependent claims

A method comprising:

generating, by a processing device, a scan model that is a mathematical model to simulate an imaging process performed by an x-ray imaging device that created a two-dimensional x-ray image of at least one tooth, wherein the scan model uses initial estimates of a plurality of parameters of the x-ray imaging device;
and
calibrating the scan model based on data obtained from an adjustment of a two-dimensional contour of a three-dimensional model that causes at least a partial alignment with the two-dimensional x-ray image.

A non-transitory computer-readable medium comprising instructions that, responsive to being executed by a processing device, cause the processing device to perform operations comprising:

generating, by the processing device, a scan model that is a mathematical model to simulate an imaging process performed by an x-ray imaging device that created a two-dimensional x-ray image of at least one tooth, wherein the scan model uses initial estimates of a plurality of parameters of the x-ray imaging device;
and
calibrating the scan model based on data obtained from an adjustment of a two-dimensional contour of a three-dimensional model that causes at least a partial alignment with the two-dimensional x-ray image.

A system comprising:

a memory;
and
a processing device, coupled to the memory, to perform operations comprising:
generating a scan model that is a mathematical model to simulate an imaging process performed by an x-ray imaging device that created a two-dimensional x-ray image of at least one tooth, wherein the scan model uses initial estimates of a plurality of parameters of the x-ray imaging device;
and
calibrating the scan model based on data obtained from an adjustment of a two-dimensional contour of a three-dimensional model that causes at least a partial alignment with the two-dimensional x-ray image.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/297,590Filed 7 Apr 2023

Priority

13 Feb 2015

Published

7 Dec 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

A61C 13/0004
Making bridge-work, inlays, implants or the like: computer-assisted sizing or machining of dental prostheses
A61C 7/002
Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by…:…
G16H 50/50
ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or…: for…
G16Z 99/00
Subject matter not provided for in other main groups of this subclass

Family

Application14/622,763Continuation · filed 13 Feb 2015

Application16/113,018Continuation · filed 27 Aug 2018

Application17/328,996Continuation · filed 24 May 2021

Application18/297,590Continuation

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