公开(公告)号：US11622102B2

公开(公告)日：2023-04-04

申请号：US17340806

申请日：2021-06-07

Applicant: 3SHAPE A/S

Inventor： Rune Fisker ,  Henrik Öjelund ,  Rasmus Kjaer ,  Mike Van Der Poel ,  Arish A. Qazi ,  Karl-Josef Hollenbeck

IPC: H04N13/296 ,  A61B5/00 ,  G01B11/25 ,  A61B5/107

Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.

公开(公告)号：US10383711B2

公开(公告)日：2019-08-20

申请号：US15888416

申请日：2018-02-05

Applicant: 3SHAPE A/S

Inventor： Bo Esbech ,  Christian Romer Rosberg ,  Mike Van Der Poel ,  Rasmus Kjaer ,  Michael Vinther ,  Karl-Josef Hollenbeck

IPC: H01J40/14 ,  A61C9/00 ,  G01B11/25 ,  G01J3/51 ,  G01J3/02 ,  G01J3/50 ,  G01B11/24

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.