US 12,150,836 B2
Focus scanning apparatus recording color
Bo Esbech, Gentofte (DK); Christian Romer Rosberg, Bronshoj (DK); Mike Van Der Poel, Rødovre (DK); Rasmus Kjaer, København K (DK); Michael Vinther, København S (DK); and Karl-Josef Hollenbeck, Copenhagen Ø (DK)
Assigned to 3SHAPE A/S, Kobenhavn K (DK)
Filed by 3SHAPE A/S, Copenhagen K (DK)
Filed on Mar. 14, 2023, as Appl. No. 18/183,358.
Application 18/183,358 is a continuation of application No. 16/921,414, filed on Jul. 6, 2020, abandoned.
Application 16/921,414 is a continuation of application No. 16/217,636, filed on Dec. 12, 2018, granted, now 10,736,718, issued on Aug. 11, 2020.
Application 16/217,636 is a continuation of application No. 15/888,416, filed on Feb. 5, 2018, granted, now 10,383,711, issued on Aug. 20, 2019.
Application 15/888,416 is a continuation of application No. 14/764,087, granted, now 9,962,244, issued on May 8, 2018, previously published as PCT/EP2014/052842, filed on Feb. 13, 2014.
Claims priority of provisional application 61/764,178, filed on Feb. 13, 2013.
Claims priority of application No. PA 2013-70077 (DK), filed on Feb. 13, 2013.
Prior Publication US 2023/0285125 A1, Sep. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61C 9/00 (2006.01); G01B 11/24 (2006.01); G01B 11/25 (2006.01); G01J 3/02 (2006.01); G01J 3/50 (2006.01); G01J 3/51 (2006.01)
CPC A61C 9/0073 (2013.01) [A61C 9/006 (2013.01); A61C 9/0066 (2013.01); G01B 11/24 (2013.01); G01B 11/2509 (2013.01); G01B 11/2513 (2013.01); G01B 11/2518 (2013.01); G01J 3/0208 (2013.01); G01J 3/0224 (2013.01); G01J 3/0237 (2013.01); G01J 3/0278 (2013.01); G01J 3/508 (2013.01); G01J 3/51 (2013.01); G01J 3/513 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A scanner system for recording surface geometry and surface color of an object, wherein the scanner system comprises:
a multichromatic light source configured for providing a probe light for illumination of the object,
one or more image sensors comprising an array of image sensor pixels for capturing a set of 2D images of light received from said object, and
a data processing system configured for deriving surface geometry information from the set of captured 2D images and for deriving surface color information from at least one of the 2D images from which the surface geometry information is derived;
wherein
the derived surface geometry information and surface color information are combined to generate a sub-scan of the object, where the sub-scan comprises data expressing the surface geometry and color of the object,
a digital 3D representation expressing both surface color and surface geometry of the object is generated by combining several sub-scans generated for a number of different views of the object, such that they together cover a part of the object surface, and
combining the sub-scans of the object to obtain the digital 3D representation expressing both surface color and surface geometry of the object comprises computing the color in each surface point of the digital 3D representation as a weighted average of corresponding points in overlapping sub-scans at that surface point.