公开(公告)号：US11051914B2

公开(公告)日：2021-07-06

申请号：US16851035

申请日：2020-04-16

Applicant: Align Technology, Inc.

Inventor： Avi Kopelman ,  Adi Levin ,  Eric Paul Meyer ,  Elad Zeiri ,  Amir Ashkenazi ,  Ron Ganot ,  Sergei Ozerov ,  Inna Karapetyan

IPC: A61C9/00 ,  A61B90/00 ,  G16H50/50 ,  A61B34/10 ,  A61C1/08 ,  A61B34/00 ,  A61C19/04 ,  A61B34/20 ,  G16H50/20 ,  G16H20/40 ,  G16H40/60 ,  A61C5/44 ,  G06F3/01 ,  G16H30/20 ,  G16H30/40 ,  G06K9/62 ,  G06K9/00 ,  A61C1/00 ,  A61C7/00 ,  A61C19/05 ,  G06T19/00 ,  A61B5/00 ,  G06T17/00 ,  G09B23/28 ,  A61B17/00 ,  G02B27/01 ,  A61B90/50 ,  A61B6/00 ,  G02B27/00 ,  A61B1/24 ,  A61B5/103 ,  A61B6/14 ,  A61B1/00 ,  G06N3/08 ,  A61B90/30 ,  G06N20/10

Abstract: A method of using AR for dentistry and orthodontics is provided. An image of a dental arch is received, the image having been generated by an image capture device associated with an augmented reality (AR) display. A processing device registers the image to previous image data associated with the dental arch, compares one or more areas of the dental arch from the image to one or more corresponding areas of the dental arch from the previous image data, determines a position of an area of interest on the dental arch based on the comparing, generates a visual overlay comprising an indication of the area of interest, and outputs the visual overlay to the AR display, wherein the visual overlay is superimposed over a view of the dental arch on the AR display at the position of the area of interest.

公开(公告)号：US11037466B2

公开(公告)日：2021-06-15

申请号：US16708387

申请日：2019-12-09

Applicant: Align Technology, Inc.

Inventor： Adi Levin ,  Gilad Furst

IPC: G06T1/00 ,  G09B23/28 ,  G06F3/0481 ,  A61C9/00

Abstract: The current document is directed to methods and systems that provide semi-automated and automated training to technicians who use oral-cavity-imaging-and-modeling systems to accurately and efficiently generate three-dimensional models of patients' teeth and underlying tissues. The training methods and systems are implemented either as subsystems within oral-cavity-imaging-and-modeling systems or as separate system in electronic communication oral-cavity-imaging-and-modeling systems. The training methods and systems use an already generated, digital, three-dimensional model of a portion of the oral cavity of a particular patient or of a physical model of a portion of an oral cavity to compute a temporal, translational, and rotational trajectory of an oral-cavity-imaging-and-modeling endoscope, or wand, during a training scan. The temporal, translational, and rotational trajectory is used for a variety of different types of instruction and instructional feedback to facilitate training of technicians.

公开(公告)号：US20210145552A1

公开(公告)日：2021-05-20

申请号：US17161507

申请日：2021-01-28

Applicant: Align Technology, Inc.

Inventor： Tal Verker ,  Adi Levin ,  Ofer Saphier ,  Maayan Moshe

IPC: A61C9/00 ,  G01B11/24 ,  G02B23/24 ,  G02B21/00 ,  G02B27/00 ,  G02B23/26

Abstract: A non-transitory medium includes instructions for generating a three-dimensional virtual model of an intraoral object by receiving surface scan data of the intraoral object while changing a position of at least one lens of focusing optics of an intraoral scanner, wherein the surface scan data comprises data for a plurality of points of the intraoral object, and adjusting the data for one or more of the plurality of points to compensate for one or more inaccuracies associated with changes of a shape of a focusing surface. A three-dimensional virtual model of the intraoral object is generated using the adjusted data.

公开(公告)号：US10898077B2

公开(公告)日：2021-01-26

申请号：US16923990

申请日：2020-07-08

Applicant: Align Technology, Inc.

Inventor： Avi Kopelman ,  Michael Sabina ,  Adi Levin ,  Mikhail Minchenkov ,  Maria Anufrienko

IPC: A61B5/00 ,  A61C7/00 ,  A61C13/34 ,  A61C9/00 ,  A61B6/14 ,  A61B6/00 ,  G06T7/55 ,  G06T7/579 ,  A61B1/24 ,  G06T7/33 ,  A61B6/03

Abstract: In embodiments, a first 3D model of a patient's teeth based on first intraoral scan data taken at a first time is processed to recognize the teeth in the first 3D model. A second 3D model of the patient's teeth based on second intraoral scan data taken at a second time is processed to recognize the teeth in the second 3D model. The first 3D model is compared to the second 3D model and a plurality of AOIs in the second virtual 3D model representative of at least one of tooth wear, tooth breakage, tooth movement, gingival recession or gingival swelling are determined based on the comparison. The teeth recognized in the first 3D model are compared to the teeth recognized in the second 3D model, and one or more AOIs in the second virtual 3D model representative of tooth wear or tooth breakage are determined based on the comparison.

公开(公告)号：US10888401B2

公开(公告)日：2021-01-12

申请号：US16842645

申请日：2020-04-07

Applicant: Align Technology, Inc.

Inventor： Adi Levin

IPC: A61B1/24 ,  A61C9/00 ,  A61B1/00

Abstract: Methods and systems for scanning an intraoral cavity of a patient provide capturing one or more viewfinder images of the intraoral cavity and scanning the intraoral cavity with an intraoral scanner to generate one or more topography scans of the intraoral cavity. The one or more topography scans may correspond to the one or more viewfinder images. The methods and systems further provide capturing a viewfinder image of a portion of the intraoral cavity, the viewfinder image overlapping with the one or more viewfinder images. An area of overlap of the viewfinder image with the one or more viewfinder images can be determined. One or more indicators of the area of overlap can be displayed on one or more locations of a display in order to provide guidance for positioning a field of view of the intraoral scanner.

公开(公告)号：US20200340803A1

公开(公告)日：2020-10-29

申请号：US16926575

申请日：2020-07-10

Applicant: Align Technology, Inc.

Inventor： Erez Lampert ,  Adi Levin ,  Tal Verker

IPC: G01B11/25 ,  G01S17/08 ,  A61C9/00 ,  G02B3/00 ,  G02B21/00 ,  G02B23/26 ,  G01B11/24 ,  G01B11/30 ,  G02B23/24

Abstract: An apparatus is described for measuring surface topography of a patient's teeth. The apparatus may include an optical probe, a light source configured to generate incident light, and focusing optics configured to focus the incident light to a focal plane external to the optical probe, wherein the focal plane is a diagonal focal plane that is non-orthogonal to a direction of propagation of the incident light. The apparatus may further include a light sensor configured to measure a characteristic of returned light generated by illuminating the patient's teeth with the incident light, and a processing unit operable to determine the surface topography of the patient's teeth based on the measured characteristic of the returned light.

公开(公告)号：US10746540B2

公开(公告)日：2020-08-18

申请号：US16379707

申请日：2019-04-09

Applicant: Align Technology, Inc.

Inventor： Erez Lampert ,  Adi Levin ,  Tal Verker

IPC: G01B11/25 ,  G01S17/08 ,  A61C9/00 ,  G02B3/00 ,  G02B21/00 ,  G02B23/26 ,  G01B11/24 ,  G01B11/30 ,  G02B23/24

Abstract: An apparatus is described for measuring surface topography of a three-dimensional structure. In many embodiments, the apparatus is configured to focus each of a plurality of light beams to a respective fixed focal position relative to the apparatus. The apparatus measures a characteristic of each of a plurality of returned light beams that are generated by illuminating the three-dimensional structure with the light beams. The characteristic is measured for a plurality of different positions and/or orientations between the apparatus and the three-dimensional structure. Surface topography of the three-dimensional structure is determined based at least in part on the measured characteristic of the returned light beams for the plurality of different positions and/or orientations between the apparatus and the three-dimensional structure.

公开(公告)号：US20200041263A1

公开(公告)日：2020-02-06

申请号：US16379707

申请日：2019-04-09

Applicant: Align Technology, Inc.

Inventor： Erez Lampert ,  Adi Levin ,  Tal Verker

IPC: G01B11/25 ,  G01S17/08 ,  A61C9/00 ,  G02B3/00 ,  G02B21/00 ,  G02B23/26 ,  G01B11/24 ,  G01B11/30 ,  G02B23/24

Abstract: An apparatus is described for measuring surface topography of a three-dimensional structure. In many embodiments, the apparatus is configured to focus each of a plurality of light beams to a respective fixed focal position relative to the apparatus. The apparatus measures a characteristic of each of a plurality of returned light beams that are generated by illuminating the three-dimensional structure with the light beams. The characteristic is measured for a plurality of different positions and/or orientations between the apparatus and the three-dimensional structure. Surface topography of the three-dimensional structure is determined based at least in part on the measured characteristic of the returned light beams for the plurality of different positions and/or orientations between the apparatus and the three-dimensional structure.

公开(公告)号：US20200038149A1

公开(公告)日：2020-02-06

申请号：US16599589

申请日：2019-10-11

Applicant: Align Technology, Inc.

Inventor： Adi Levin

IPC: A61C9/00 ,  A61B1/24 ,  A61B1/00

Abstract: Methods and systems for scanning an intraoral cavity of a patient provide capturing one or more viewfinder images of the intraoral cavity and scanning the intraoral cavity with an intraoral scanner to generate one or more topography scans of the intraoral cavity. The one or more topography scans may correspond to the one or more viewfinder images. The methods and systems further provide capturing a viewfinder image of a portion of the intraoral cavity, the viewfinder image overlapping with the one or more viewfinder images. An area of overlap of the viewfinder image with the one or more viewfinder images can be determined. One or more indicators of the area of overlap can be displayed on one or more locations of a display in order to provide guidance for positioning a field of view of the intraoral scanner.

公开(公告)号：US10507088B2

公开(公告)日：2019-12-17

申请号：US16286437

申请日：2019-02-26

Applicant: Align Technology, Inc.

Inventor： Tal Verker ,  Adi Levin ,  Ofer Saphier ,  Maayan Moshe

IPC: G02B23/24 ,  G02B21/00 ,  A61C9/00 ,  G01B11/24 ,  G02B27/00 ,  G02B23/26

Abstract: Embodiments are directed to an imaging apparatus, which in an embodiment includes a light source to provide light, optics, a translation mechanism and a detector. The optics include focusing optics to perform focusing of the light onto a non-flat focal surface and to direct the light toward a three dimensional object. The translation mechanism adjusts a location of at least one lens of the focusing optics to displace the non-flat focal surface. The detector measures intensities of returning light that is reflected off of the three dimensional object, wherein the intensities of the returning light are measured for a plurality of locations of the at least one lens for determination of positions of a plurality of points of the three dimensional object. Detected positions of one or more of the plurality of points are adjusted to compensate for the non-flat focal surface.