公开(公告)号：US11825062B2

公开(公告)日：2023-11-21

申请号：US16919205

申请日：2020-07-02

Applicant: 3SHAPE A/S

Inventor： Rune Fisker ,  Henrik Öjelund ,  Mike Van Der Poel ,  Kristian Evers Hansen ,  Anders Gaarde

IPC: H04N13/106 ,  G06T7/30 ,  G06T7/571 ,  G06T5/00 ,  G06T5/50

CPC classification number: H04N13/106 ,  G06T5/003 ,  G06T5/50 ,  G06T7/30 ,  G06T7/571 ,  G06T2207/10016 ,  G06T2207/10028 ,  G06T2207/10148 ,  G06T2207/20201 ,  G06T2207/30036

Abstract: Disclosed is a method for compensating for motion blur when performing a 3D scanning of at least a part of an object by means of a 3D scanner, where the motion blur occurs because the scanner and the object are moved relative to each other while the scanning is performed, and where the motion blur compensation comprises: —determining whether there is a relative motion between the scanner and the object during the acquisition of the sequence of focus plane images; —if a relative motion is determined, performing a motion compensation based on the determined motion; and —generating a 3D surface from the sequence of focus plane images.

公开(公告)号：US11671582B2

公开(公告)日：2023-06-06

申请号：US17742115

申请日：2022-05-11

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

CPC classification number: H04N13/296 ,  A61B5/0068 ,  A61B5/1077 ,  G01B11/2513 ,  G01B11/2518 ,  A61B5/1075 ,  A61B5/1076 ,  A61B5/4547 ,  G01B2210/58

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：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：US10902595B2

公开(公告)日：2021-01-26

申请号：US15780519

申请日：2016-12-05

Applicant: 3SHAPE A/S

Inventor： Mike Van Der Poel ,  Rune Fisker ,  Karl-Josef Hollenbeck

IPC: G06K9/00 ,  G06T7/00 ,  A61C9/00 ,  A61B5/00 ,  G16H50/20 ,  G06F19/00 ,  G16H10/60 ,  A61B6/14 ,  G06T7/12 ,  G16H30/40 ,  A61B5/103 ,  A61C13/00 ,  G06T7/32 ,  G06T7/70 ,  G06T3/00

Abstract: Disclosed are methods and digital tools for deriving tooth condition information for a patient's teeth, for populating a digital dental chart with derived tooth condition information, and for generating an electronic data record containing such information.

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.

公开(公告)号：US20150054922A1

公开(公告)日：2015-02-26

申请号：US14502230

申请日：2014-09-30

Applicant: 3SHAPE A/S

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

IPC: H04N13/02 ,  A61B5/00 ,  A61B5/107 ,  G01B11/25

CPC classification number: H04N13/296 ,  A61B5/0068 ,  A61B5/1075 ,  A61B5/1076 ,  A61B5/1077 ,  A61B5/4547 ,  G01B11/2513 ,  G01B11/2518 ,  G01B2210/58

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.

Abstract translation: 扫描器包括相机，用于产生包含空间图案的探测光的光源，用于将探测光发送到物体并用于将从物体返回的光的至少一部分传输到相机的光学系统，焦点 在所述光学系统内用于改变所述物体上的空间图案的聚焦平面的位置的单元，用于从所述传感器元件阵列获得至少一个图像，用于评估在至少一个 图像像素和加权函数的处理器，用于针对焦距平面位置的范围确定多个图像像素中的每一个的对焦位置的处理器或用于焦距范围的多组图像像素中的每一个 平面位置，并将对焦数据转换为3D现实世界坐标。