Intraoral camera
AssigneeDENTSPLY SIRONA Inc.
InventorsFrederike Franke, Bjoern Voss, Thomas Ertl, Michael Tewes, Andreas Unger
Life of this patent
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Abstract
Light is projected from a light source in a first direction towards a tooth. The light source generates at least infrared light in the wavelength range of 950 nm to 2500 nm. A colloidal quantum dot (CQD) sensor records one or more surface light distribution images produced at the surface of the tooth by the projected light and the one or more surface light distribution images are used to compute a defect condition of the tooth.
Claims20
A method comprising:
- projecting light from a light source of an intraoral camera in a first direction towards at least one tooth, wherein the light source is configured to generate at least infrared light in a wavelength range of 950 nm to 2500 nm, and visible light;
- recording, by a color sensor, color images of the at least one tooth;
- recording, by a colloidal quantum dot (CQD) sensor, one or more surface light distribution images produced at a surface of the at least one tooth by the projected light;
- and
- computing, using the one or more surface light distribution images, a defect condition of the at least one tooth.
An intraoral camera system comprising:
- a light source configured to generate at least infrared light in a wavelength range of 950 nm to 2500 nm, and visible light, wherein the light source is projected in a first direction towards at least one tooth;
- a color sensor configured to record color images of the at least one tooth;
- a colloidal quantum dot (CQD) sensor;
- and
- a processor configured to:
- project light from the light source in a first direction towards at least one tooth;
- record, by the CQD sensor, one or more surface light distribution images produced at a surface of the at least one tooth by the projected light;
- and
- compute, using the one or more surface light distribution images, a defect condition of the at least one tooth.
A non-transitory computer readable storage medium storing one or more programs that when executed by a processor cause an intraoral camera system to:
- project light from a light source of an intraoral camera in a first direction towards at least one tooth, wherein the light source is configured to generate at least infrared light in a wavelength range of 950 nm to 2500 nm, and visible light;
- record, by a color sensor, color images of the at least one tooth;
- record, by a colloidal quantum dot (CQD) sensor, one or more surface light distribution images produced at a surface of the at least one tooth by the projected light;
- and
- compute, using the one or more surface light distribution images, a defect condition of the at least one tooth.
A method comprising:
- projecting light, from a light source of an intraoral camera, in a first direction towards at least one tooth, wherein the light source is configured to generate at least infrared light in a wavelength range of 950 nm to 2500 nm, and visible light, wherein the infrared light is projected as a structured light for generating spatial information about optical properties of tooth material, wherein the structured light is projected as a grid of points;
- recording, by a colloidal quantum dot (CQD) sensor, one or more surface light distribution images produced at a surface of the at least one tooth by the projected light;
- and
- computing, using the one or more surface light distribution images, a defect condition of the at least one tooth.
Dependencies are inferred from the claim text.