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公开(公告)号：US10806549B2
公开(公告)日：2020-10-20
申请号：US16133551
申请日：2018-09-17
Applicant: Align Technology, Inc.
Inventor： Avi Kopelman , Adi Levin , Ran Katz , Eric Kuo
Abstract: Data from an intraoral scan is received, the data comprising a plurality of intraoral images of a dental site. At least two intraoral images are identified that comprise a representation of at least a portion of a non-rigid object that was affixed to the dental site at a target area. Image registration is performed between the at least two intraoral images using the non-rigid object identified in the at least two intraoral images. A 3D model of the dental site is generated based on the image registration. A representation of the non-rigid object is subtracted from the 3D model based on the known properties of the non-rigid object. A surface of a portion of the dental site is interpolated where the non-rigid object was located based on a) data for other portions of the dental site and b) the surface of the base of the non-rigid object.
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公开(公告)号：US20200237486A1
公开(公告)日：2020-07-30
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
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.
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公开(公告)号：US20190029524A1
公开(公告)日：2019-01-31
申请号：US16146870
申请日：2018-09-28
Applicant: Align Technology, Inc.
Inventor： Avi Kopelman , Michael Sabina , Adi Levin , Mikhail Minchenkov , Maria Anufrienko
IPC: A61B5/00 , G06T7/33 , A61C7/00 , A61C13/34 , G06T7/55 , A61B6/00 , A61B6/14 , A61B1/24 , G06T7/579 , A61C9/00
Abstract: A processing device performs image registration between a plurality of intraoral images of a dental site. The processing device identifies a candidate intraoral area of interest from a first intraoral image of the plurality of intraoral images. The processing device verifies the candidate intraoral area of interest as an intraoral area of interest based on a comparison of a second intraoral image to the first intraoral image. The processing device displays a view of the dental site where the intraoral area of interest is hidden and an indication of the hidden intraoral area of interest is visible.
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公开(公告)号：US09987108B2
公开(公告)日：2018-06-05
申请号：US15645243
申请日：2017-07-10
Applicant: Align Technology, Inc.
Inventor： Adi Levin
CPC classification number: A61C9/0053 , A61B1/00045 , A61B1/24
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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公开(公告)号：US20180096465A1
公开(公告)日：2018-04-05
申请号：US15730492
申请日：2017-10-11
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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Patent Agency Ranking
公开(公告)号：US09830688B2
公开(公告)日：2017-11-28
申请号：US15421110
申请日：2017-01-31
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：US20170265970A1
公开(公告)日：2017-09-21
申请号：US15610515
申请日：2017-05-31
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 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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68.发明申请公开(公告)号：US20160217708A1
公开(公告)日：2016-07-28
申请号：US14993798
申请日：2016-01-12
Applicant: ALIGN TECHNOLOGY INC.
Inventor： Adi Levin , Gilad Furst
IPC: G09B23/28 , G06T1/00 , G06F3/0481
CPC classification number: G09B23/283 , A61C9/0053 , G06F3/0481 , G06T1/0007 , G06T2200/24
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.
Abstract translation: 目前的文件针对的是为使用口腔成像和建模系统准确有效地产生患者牙齿和下层组织的三维模型的技术人员提供半自动化和自动化培训的方法和系统。 训练方法和系统可以作为口腔成像和建模系统中的子系统，或作为电子通信口腔成像和建模系统中的单独系统来实现。 训练方法和系统使用特定患者的口腔的一部分或口腔部分的物理模型的已经生成的数字三维模型来计算时间，平移和旋转轨迹 口腔成像和建模内窥镜或者棒，在训练扫描期间。 时间，平移和旋转轨迹用于各种不同类型的教学和教学反馈，以便于技术人员的培训。
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公开(公告)号：US20150320320A1
公开(公告)日：2015-11-12
申请号：US14705788
申请日：2015-05-06
Applicant: Align Technology, Inc.
Inventor： Avi Kopelman , Michael Sabina , Adi Levin , Mikhail Minchenkov , Maria Anufrienko
CPC classification number: A61B5/0088 , A61B1/24 , A61B5/4547 , A61B5/4552 , A61B5/486 , A61B5/7264 , A61B6/145 , A61B6/469 , A61B6/5241 , A61B2576/02 , A61C7/002 , A61C9/0053 , A61C13/34 , G06T7/344 , G06T7/55 , G06T7/579 , G06T2207/10016 , G06T2207/10021 , G06T2207/30036
Abstract: During an intraoral scan session, a processing device receives a first intraoral image of a dental site and identifies a candidate intraoral area of interest from the first intraoral image. The processing device receives a second intraoral image of the dental site and verifies the first candidate intraoral area of interest as an intraoral area of interest based on comparison of the second intraoral image to the first intraoral image. The processing device then provides an indication of the intraoral area of interest during the intraoral scan session.
Abstract translation: 在口腔内扫描会话期间，处理装置接收牙科部位的第一口腔内图像，并从第一口内图像识别候选口内区域。 所述处理装置基于所述第二口腔内图像与所述第一口内图像的比较，接收所述牙科部位的第二口腔内图像，并且将所述感兴趣的第一候选口内区域验证为所述感兴趣的口内区域。 然后，处理装置在口内扫描会话期间提供关注的口内区域的指示。
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公开(公告)号：US20250143850A1
公开(公告)日：2025-05-08
申请号：US19019046
申请日：2025-01-13
Applicant: Align Technology, Inc.
Inventor： Tal Verker , Adi Levin , Ofer Saphier , Maayan Moshe
Abstract: A system includes a scanner comprising a light source to emit light onto an object, and an image sensor to form a sequence of images of the object under a plurality of different conditions. The system includes a computing device to perform a calibration of the scanner by determining, from the sequence of images, differences in measured coordinates for a plurality of points on the object under the plurality of different conditions, generating or updating one or more compensation models that compensate for inaccuracies of the intraoral scanner based at least in part on the differences in the measured coordinates for the plurality of points of the object between the plurality of different conditions, and storing the one or more compensation models. The one or more compensation models cause the intraoral scanner to be a calibrated intraoral scanner.
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