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公开(公告)号：US20210121271A1
公开(公告)日：2021-04-29
申请号：US17142081
申请日：2021-01-05
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
Abstract: A processing device receives, from an image capture device associated with an augmented reality (AR) display, a plurality of images of a face of a patient. The processing device selects a subset of the plurality of images that meet one or more image selection criteria. The selection comprises determining, from the plurality of images, a first image that represents a first position extreme for the face; determining, from the plurality of images, a second image that represents a second position extreme of the face; selecting the first image; and selecting the second image. The processing device further generates a model of a jaw of the patient based at least in part on the subset of the plurality of images that have been selected.
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公开(公告)号：US20210113309A1
公开(公告)日：2021-04-22
申请号：US17133344
申请日：2020-12-23
Applicant: Align Technology, Inc.
Inventor： Adi Levin
Abstract: A processing device receives one or more images of an intraoral cavity of a patient generated by measuring one or more characteristics of returning light, the returning light having been reflected off one or more surfaces within the intraoral cavity. The processing device subsequently receives an additional image of the intraoral cavity of the patient. The processing device compares the additional image to the one or more previously received images and determines, based on a result of the comparing, that a criterion is not satisfied. The processing device displays image data from at least one of a) the one or more images or b) the additional image. The processing device further displays one or more visual indicators, the one or more visual indicators comprising a warning indicator indicating a potential problem associated with the criterion not being satisfied.
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公开(公告)号：US10952827B2
公开(公告)日：2021-03-23
申请号：US16823156
申请日：2020-03-18
Applicant: Align Technology, Inc.
Inventor： Tal Verker , Adi Levin , Ofer Saphier , Maayan Moshe
Abstract: A method of generating a three-dimensional virtual model of an intraoral object includes capturing, by an intraoral scanner for performing intraoral scans, surface scan data of the intraoral object while changing a position of at least one lens of focusing optics of the intraoral scanner, wherein the surface scan data comprises depth data for a plurality of points of the intraoral object. The method further includes adjusting the depth data for one or more of the plurality of points based at least in part on a value associated with a temperature of at least a portion of the imaging apparatus. The method further includes generating the three-dimensional virtual model of the intraoral object using the adjusted depth data.
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公开(公告)号：US10682209B2
公开(公告)日：2020-06-16
申请号：US16282431
申请日：2019-02-22
Applicant: Align Technology, Inc.
Inventor： Adi Levin
Abstract: Embodiments for estimating a surface texture of a tooth are described herein. One method embodiment includes collecting a sequence of images utilizing multiple light conditions using an intra-oral imaging device and estimating the surface texture of the tooth based on the sequence of images.
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公开(公告)号：US10660732B2
公开(公告)日：2020-05-26
申请号：US16599589
申请日：2019-10-11
Applicant: Align Technology, Inc.
Inventor： Adi Levin
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.
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Patent Agency Ranking
公开(公告)号：US10507089B2
公开(公告)日：2019-12-17
申请号：US16396484
申请日：2019-04-26
Applicant: Align Technology, Inc.
Inventor： Tal Verker , Adi Levin , Ofer Saphier , Maayan Moshe
Abstract: A method of generating a three-dimensional virtual model of an intraoral object includes capturing, by an imaging apparatus for performing intraoral scans, surface scan data of the intraoral object while changing a position of at least one lens of focusing optics of the imaging apparatus, wherein the surface scan data comprises depth data for a plurality of points of the intraoral object. The method further includes adjusting the depth data for one or more of the plurality of points based at least in part on the position of the at least one lens associated with the depth data for the one or more of the plurality of points. The method further includes generating the three-dimensional virtual model of the intraoral object using the adjusted depth data.
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公开(公告)号：US20190247164A1
公开(公告)日：2019-08-15
申请号：US16396484
申请日：2019-04-26
Applicant: Align Technology, Inc.
Inventor： Tal Verker , Adi Levin , Ofer Saphier , Maayan Moshe
CPC classification number: A61C9/0066 , G01B11/24 , G02B21/006 , G02B23/2446 , G02B23/2461 , G02B23/26 , G02B27/0025
Abstract: A method of generating a three-dimensional virtual model of an intraoral object includes capturing, by an imaging apparatus for performing intraoral scans, surface scan data of the intraoral object while changing a position of at least one lens of focusing optics of the imaging apparatus, wherein the surface scan data comprises depth data for a plurality of points of the intraoral object. The method further includes adjusting the depth data for one or more of the plurality of points based at least in part on the position of the at least one lens associated with the depth data for the one or more of the plurality of points. The method further includes generating the three-dimensional virtual model of the intraoral object using the adjusted depth data.
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公开(公告)号：US20190244332A1
公开(公告)日：2019-08-08
申请号：US16389323
申请日：2019-04-19
Applicant: Align Technology, Inc.
Inventor： Adi Levin
CPC classification number: G06T5/003 , A61B1/24 , A61B6/145 , A61C9/0053 , A61C9/0066 , G06T5/006 , G06T7/20 , G06T7/38 , G06T2207/10028 , G06T2207/20048 , G06T2207/20201 , G06T2207/30036 , G06T2207/30241
Abstract: The present disclosure provides computing device implemented methods, computing device readable media, and systems for motion compensation in a three dimensional scan. Motion compensation can include receiving three-dimensional (3D) scans of a dentition, estimating a motion trajectory from one scan to another, and calculating a corrected scan by compensating for the motion trajectory. Estimating the motion trajectory can include one or more of: registering a scan to another scan and determining whether an amount of movement between the scans is within a registration threshold; determining an optical flow based on local motion between consecutive two-dimensional (2D) images taken during the scan, estimating and improving a motion trajectory of a point in the scan using the optical flow; and estimating an amount of motion of a 3D scanner during the scan as a rigid body transformation based on input from a position tracking device.
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公开(公告)号：US10327872B2
公开(公告)日：2019-06-25
申请号：US15610515
申请日：2017-05-31
Applicant: Align Technology, Inc.
Inventor： Tal Verker , Adi Levin , Ofer Saphier , Maayan Moshe
Abstract: A computing device comprises a processor that uses a field curvature model that is calibrated to a confocal imaging apparatus. The processor receives intensity measurements generated by pixels of a detector of the confocal imaging apparatus. The processor determines, for each pixel, a focusing setting of the confocal imaging apparatus that provides a maximum measured intensity. The processor determines, for each pixel, a depth of a point of a 3D object associated with the pixel that corresponds to the determined focusing setting. The processor adjusts the depth of at least one point of the 3D object based on applying the determined focusing setting for the pixel associated with the at least one point to the field curvature model to compensate for a non-flat focal surface of the confocal imaging apparatus. The processor determines a shape of the 3D object based at least in part on the adjusted depth.
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公开(公告)号：US20190183614A1
公开(公告)日：2019-06-20
申请号：US16282431
申请日：2019-02-22
Applicant: Align Technology, Inc.
Inventor： Adi Levin
Abstract: Embodiments for estimating a surface texture of a tooth are described herein. One method embodiment includes collecting a sequence of images utilizing multiple light conditions using an intra-oral imaging device and estimating the surface texture of the tooth based on the sequence of images.
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