FOCUS SCANNING APPARATUS RECORDING COLOR

• US 20180221117A1
• Filed: 02/05/2018
• Published: 08/09/2018
• Est. Priority Date: 02/13/2013
• Status: Active Grant

• Current Assignee: 3shape A/S
• Original Assignee: 3shape A/S
• Inventors: ESBECH, Bo, ROSBERG, Christian Romer, VAN DER POEL, Mike, KJAER, Rasmus, VINTHER, Michael, HOLLENBECK, Karl-Josef
• Granted Patent: US 10,383,711 B2
• Time in Patent Office: Days
• CPC Class Codes: A61C 9/006 projecting one or more stripes or patterns on the teeth
• CPC Class Codes: A61C 9/0066 Depth determination through adaptive focusing
• CPC Class Codes: A61C 9/0073 Interferometric means or methods, e.g. creation of a hologram
• CPC Class Codes: G01B 11/24 for measuring contours or curvatures
• CPC Class Codes: G01B 11/2509 Color coding
• CPC Class Codes: G01B 11/2513 with several lines being projected in more than one direction, e.g. grids, patterns
• CPC Class Codes: G01B 11/2518 Projection by scanning of the object
• CPC Class Codes: G01J 3/0208 using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
• CPC Class Codes: G01J 3/0224 using polarising or depolarising elements
• CPC Class Codes: G01J 3/0237 Adjustable, e.g. focussing
• CPC Class Codes: G01J 3/0278 Control or determination of height or angle information for sensors or receivers
• CPC Class Codes: G01J 3/508 measuring the colour of teeth
• CPC Class Codes: G01J 3/51 using colour filters
• CPC Class Codes: G01J 3/513 having fixed filter-detector pairs

Abstract

Disclosed are a scanner system and a method for recording surface geometry and surface color of an object where both surface geometry information and surface color information for a block of the image sensor pixels at least partly from one 2D image recorded by the color image sensor. A particular application is within dentistry, particularly for intraoral scanning.

Claims

1. A scanner system for recording surface geometry and surface color of an object, the scanner system comprising:

a multichromatic light source configured for providing a multichromatic probe light for illumination of the object,

a color image sensor comprising an array of image sensor pixels for capturing one or more 2D images of light received from said object, and

a data processing system configured for deriving both surface geometry information and surface color information for a block of said image sensor pixels at least partly from one 2D image recorded by said color image sensor.