Method for measuring a dental object

Patent metadata

Field	Value
Publication number	US-10580134-B2
Application number	US-201916406310-A
Country	US
Kind code	B2
Filing date	May 8, 2019
Priority date	Aug 14, 2012
Publication date	Mar 3, 2020
Grant date	Mar 3, 2020

Abstract

A method of imaging a dental object using a dental camera comprising the steps of: recording a plurality of three-dimensional optical images of a dental object using a dental camera; determining whether an overlapping area, formed by at least a partial overlap of the plurality of three-dimensional optical images, satisfies one or more recording requirements; and generating an acoustic sound during the recording using a sound generator; wherein the sound serves as a feedback for the user and imparts to the user information (i) about the current status of a recording of the images and/or (ii) about recording requirements of the dental camera; wherein a speed of movement of the dental camera relative to the object is determined by (i) using a motion sensor on the dental camera or (ii) by analysis of the measured images; and wherein the acoustic sound is generated as a function of the determined speed of movement.

First claim

The invention claimed is:

1. A method of imaging a dental object using a dental camera comprising the steps of:
recording a plurality of three-dimensional optical images of a dental object using a dental camera;
determining whether an overlapping area, formed by at least a partial overlap of the plurality of three-dimensional optical images, satisfies one or more recording requirements; and
generating an acoustic sound during the recording using a sound generator;
wherein the sound serves as a feedback for the user and imparts to the user information (i) about the current status of a recording of the images and/or (ii) about recording requirements of the dental camera;
wherein a speed of movement of the dental camera relative to the object is determined by (i) using a motion sensor on the dental camera or (ii) by analysis of the measured images; and
wherein the acoustic sound is generated as a function of the determined speed of movement.

2. The method according to claim 1 , wherein the sound generator emits a modulated sound, wherein the tone pitch and/or the volume of the sound can be changed depending on the speed of movement of the dental camera relative to the object.

3. The method according to claim 1 , wherein the generated sound is a short clicking sound, which is generated as soon as a defined critical speed of movement is exceeded.

Assignees

• Dentsply Sirona Inc

Inventors

• Adamson Anders

Classifications

• A61B5/4547

  Evaluating teeth · CPC title

• H04N7/18

  Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast · CPC title

• A61B5/1077

  Measuring of profiles · CPC title

• A61C9/0053

  Optical means or methods, e.g. scanning the teeth by a laser or light beam · CPC title

• G01B11/25

  by projecting a pattern, e.g. {one or more lines,} moiré fringes on the object (G01B11/255 takes precedence {; image analysis for depth or shape recovery G06T7/50}) · CPC title