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公开(公告)号：US20220023002A1
公开(公告)日：2022-01-27
申请号：US17443242
申请日：2021-07-22
Applicant: ALIGN TECHNOLOGY, INC.
Inventor： Christopher E. CRAMER , Rajiv VENKATA , Leela PARVATHANENI , Phillip Thomas HARRIS , Sravani GURIJALA , Svetozar HUBENOV , Sebastien HARENG , Guotu LI , Yun GAO , Chad Clayton BROWN
Abstract: A method of dental treatment may include receiving one or more photo parameters to define clinically acceptable criteria for a plurality of clinically relevant photos of a person's dentition. The clinically acceptable criteria may include at least a plurality of clinically acceptable positions and a plurality of clinically acceptable orientations of teeth relative to a camera. The method may also include gathering a plurality of image-capture rules to capture the plurality of clinically relevant photos. The plurality of image capture rules may be based on the one or more photo parameters. The method may also include providing first automated instructions to capture the plurality of clinically relevant photos of the person's dentition using the plurality of image-capture rules and capturing the plurality of clinically relevant photos with the camera in response to the first automated instructions.
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12.发明申请公开(公告)号：US20210186659A1
公开(公告)日：2021-06-24
申请号：US17133225
申请日：2020-12-23
Applicant: Align Technology, Inc.
Inventor： Guotu LI , Christopher E. CRAMER
IPC: A61C7/00 , G06T17/20 , G06T19/20 , G06T7/13 , G06T7/11 , G06T7/00 , G16H50/50 , G16H30/40 , G16H20/40 , G06N3/04 , G06N3/08
Abstract: Provided herein are systems and methods for optimizing a 3D model of an individual's teeth. A 3D dental model may be reconstructed from 3D parameters. A differentiable renderer may be used to derive a 2D rendering of the individual's dentition. 2D image(s) of an individual's dentition may be obtained, and features may be extracted from the 2D image(s). Image loss between the 2D rendering and the 2D image(s) can be derived, and back-propagation from the image loss can be used to calculate gradients of the loss to optimize the 3D parameters. A machine learning model can also be trained to predict a 3D dental model from 2D images of an individual's dentition.
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公开(公告)号：US20250099205A1
公开(公告)日：2025-03-27
申请号：US18898623
申请日：2024-09-26
Applicant: Align Technology, Inc.
Inventor： Guotu LI , Yun GAO , Christopher E. CRAMER
Abstract: Apparatuses, systems, and methods for importing and/or transferring data, including dental data, from three-dimensional (3D) dental models to two-dimensional (2D) dental images may manipulate the 3D dental model based on a temporomandibular joint. A 2D projected image is generated from a patient's 3D dental model. If the 2D projected image matches (within a threshold) to a patient's 2D dental image (from a photo or the like), then dental data may be transferred. If the 2D projected image does not match, then the 3D dental model may be modified (based on the temporomandibular joint) and a new 2D projected image generated. In this manner, the positions of the 3D dental model may be iterated to generate multiple 2D projected images.
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Patent Agency Ranking
公开(公告)号：US20250005755A1
公开(公告)日：2025-01-02
申请号：US18759623
申请日：2024-06-28
Applicant: Align Technology, Inc.
Inventor： Yun GAO , Guotu LI , Chao SHI , Christopher E. CRAMER
Abstract: Apparatuses and methods for dental image analysis including determining pixel sizes of an image. A pixel size enables conversion of a two-dimension image-based measurement into a 3D measurement. The pixel sizes vary over the image due to differences in distance between the camera taking the image and the object of interest. A three-dimensional model may be registering to the two-dimension image, and the pixel sizes may be identified on a per-object (e.g., per-tooth) basis, per-region basis or at each point in the image. The pixel size scaling may be used to identify features in the image for diagnostic or other dental application purposes.
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公开(公告)号：US20240177397A1
公开(公告)日：2024-05-30
申请号：US18522169
申请日：2023-11-28
Applicant: Align Technology, Inc.
Inventor： Guotu LI , Michael CHANG , Christopher Cramer , Michael Austin Brown , Magdalena Blankenburg
CPC classification number: G06T15/005 , A61C7/002 , A61C9/0053 , G16H30/40
Abstract: Methods and systems are described that use a three-dimensional (3D) model of a dental site to generate a panoramic two-dimensional (2D) image of the dental site. In one example, a method includes receiving a 3D model of the dental site generated at least in part from an intraoral scan, generating a surface shaped to substantially surround a dental arch represented by the dental site, computing a surface projection by projecting the dental site onto the surface, and generating the panoramic 2D image from the surface projection.
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公开(公告)号：US20220028536A1
公开(公告)日：2022-01-27
申请号：US17443245
申请日：2021-07-22
Applicant: ALIGN TECHNOLOGY, INC.
Inventor： Christopher E. CRAMER , Rajiv VENKATA , Leela PARVATHANENI , Phillip Thomas HARRIS , Sravani GURIJALA , Svetozar HUBENOV , Sebastien HARENG , Guotu LI , Yun GAO , Chad Clayton BROWN
IPC: G16H40/20 , G06T17/20 , G06T7/80 , G06T7/30 , G06T7/00 , G16H50/20 , G16H70/20 , G06N3/08 , G06N3/04 , G06T7/70
Abstract: A method for dental treatment may include receiving photos capturing a state of a patient's dentition of a patient at a specific time, retrieving a first treatment plan to treat the patient's dentition, identifying an intended arrangement of the first treatment plan at the specific time, evaluating the photo parameters of the photos to generate alignment data to align the intended arrangement of the first treatment plan and the photos, generating an alignment mesh using the alignment data, the alignment mesh comprising a three-dimensional (3D) mesh representation of the patient's dentition at the specific time, performing an evaluation of the first treatment plan for modifications using the alignment mesh, and identifying proposed modifications to the first treatment plan based on the evaluation.
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公开(公告)号：US20220028071A1
公开(公告)日：2022-01-27
申请号：US17443248
申请日：2021-07-22
Applicant: ALIGN TECHNOLOGY, INC.
Inventor： Christopher E. CRAMER , Rajiv VENKATA , Leela PARVATHANENI , Phillip Thomas HARRIS , Sravani GURIJALA , Svetozar HUBENOV , Sebastien HARENG , Guotu LI , Yun GAO , Chad Clayton BROWN
IPC: G06T7/00 , G06K9/62 , G06K9/03 , G06T7/60 , G06K9/46 , G16H50/20 , G16H10/60 , G06N3/04 , G06N3/08 , A61C7/00
Abstract: A method for image-based orthodontic treatment may include receiving image data of a patient's dentition and an orthodontic appliance, identifying, from the image data, the orthodontic appliance, calculating a misalignment height of a misalignment of the orthodontic appliance with respect to the patient's dentition, determining whether the misalignment height satisfies a misalignment threshold, and in response to satisfying the misalignment threshold, providing a notification.
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公开(公告)号：US20220023003A1
公开(公告)日：2022-01-27
申请号：US17443243
申请日：2021-07-22
Applicant: ALIGN TECHNOLOGY, INC.
Inventor： Christopher E. CRAMER , Rajiv VENKATA , Leela PARVATHANENI , Phillip Thomas HARRIS , Sravani GURIJALA , Svetozar HUBENOV , Sebastien HARENG , Guotu LI , Yun GAO , Chad Clayton BROWN
Abstract: A method of dental treatment may include receiving photos of a person's dentition, identifying a stage of a treatment plan administered to the person's dentition, gathering a three-dimensional (3D) model of the person's dentition corresponding to the stage of the treatment plan, projecting attributes of the 3D model of the person's dentition onto an image plane to get a projected representation of the person's dentition at the stage of the treatment plan, comparing the photos to the projected representation to derive an error image representing the comparison, and analyzing the error image for discrepancies, wherein the discrepancies represent one or more deviations of the person's dentition from the stage of the treatment plan.
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