公开(公告)号：US20220272316A1

公开(公告)日：2022-08-25

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

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：US20190200006A1

公开(公告)日：2019-06-27

申请号：US16289097

申请日：2019-02-28

Applicant: 3SHAPE A/S

Inventor： Rune FISKER ,  Henrik Öjelund ,  Rasmus KJÆR ,  Mike van der Poel ,  Arish A. QAZI ,  Karl-Josef HOLLENBECK

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

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.

公开(公告)号：US20200169722A1

公开(公告)日：2020-05-28

申请号：US16774843

申请日：2020-01-28

Applicant: 3SHAPE A/S

Inventor： Rune FISKER ,  Henrik ÔJELUND ,  Rasmus KJÆR ,  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：US20190289283A1

公开(公告)日：2019-09-19

申请号：US16433369

申请日：2019-06-06

Applicant: 3SHAPE A/S

Inventor： Rune FISKER ,  Henrik ÔJELUND ,  Rasmus KJÆR ,  Mike van der POEL ,  Arish A. QAZI ,  Karl-Josef HOLLENBECK

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

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：US20230403387A1

公开(公告)日：2023-12-14

申请号：US18455708

申请日：2023-08-25

Applicant: 3SHAPE A/S

Inventor： Rune FISKER ,  Henrik ÖJELUND ,  Rasmus KJÆR ,  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 ,  G01B11/2513 ,  G01B11/2518 ,  A61B5/1077 ,  A61B5/4547 ,  G01B2210/58 ,  A61B5/1075 ,  A61B5/1076

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：US20210211638A1

公开(公告)日：2021-07-08

申请号：US17206581

申请日：2021-03-19

Applicant: 3SHAPE A/S

Inventor： Rune FISKER ,  Henrik ÖJELUND ,  Rasmus KJÆR ,  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：US20190124323A1

公开(公告)日：2019-04-25

申请号：US16217943

申请日：2018-12-12

Applicant: 3SHAPE A/S

Inventor： Rune FISKER ,  Henrik ÔJELUND ,  Rasmus KJÆR ,  Mike van der POEL ,  Arish A. QAZI ,  Karl-Josef HOLLENBECK

IPC: H04N13/296 ,  G01B11/25 ,  A61B5/00 ,  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：US20230058298A1

公开(公告)日：2023-02-23

申请号：US17892397

申请日：2022-08-22

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：US20220272317A1

公开(公告)日：2022-08-25

申请号：US17742151

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

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：US20220086418A1

公开(公告)日：2022-03-17

申请号：US17533403

申请日：2021-11-23

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.