Teeth segmentation using neural networks

    公开(公告)号:US12236594B2

    公开(公告)日:2025-02-25

    申请号:US18515179

    申请日:2023-11-20

    Abstract: A computer-implemented method and system of digitally segmenting teeth in a digital model comprises generating a panoramic image from a 3D digital model of a patient's dentition, labeling, using a first trained neural network, the panoramic image to provide a labeled panoramic image, mapping the labeled panoramic image to corresponding coarse digital surface triangle labels in the 3D digital model to provide a labeled 3D digital model, and segmenting the labeled 3D digital model to provide a segmented 3D digital model. A computer-implemented method and system of generating a panoramic image comprises determining, using a trained neural network, digital tooth bounding region(s) corresponding to digital teeth from a 2D depth map of a patient's dentition, connecting digital tooth bounding region(s) by a spline, determining sampled digital surface points from the sampled spline points; and determining associated digital surface points corresponding to each sampled digital surface point.

    Method for Encoding of Anatomic Curves
    4.
    发明申请
    Method for Encoding of Anatomic Curves 审中-公开
    解剖曲线编码方法

    公开(公告)号:US20140278278A1

    公开(公告)日:2014-09-18

    申请号:US14211517

    申请日:2014-03-14

    Abstract: A method for compact and descriptive representation of teeth shape (or other anatomic shapes) in terms of characteristic curves and its application to generation of automatic designs within dental CAD software or other software is provided. In an embodiment, a method includes capturing tooth shape by a network of characteristic curves (i.e. margin lines). In an embodiment, a method includes compactly encoding curves as strings, which then can be indexed and searched efficiently by similarity. In an embodiment, a method includes retrieving high quality crown design proposals from a case repository based on similarity of margin lines.

    Abstract translation: 提供了一种在特征曲线方面紧凑且描述性地表示牙齿形状(或其他解剖形状)的方法及其在牙科CAD软件或其他软件中产生自动设计的应用。 在一个实施例中,一种方法包括通过特征曲线(即边缘线)的网络捕获齿形。 在一个实施例中,方法包括将曲线紧凑地编码为字符串,然后可以通过相似性有效地索引和搜索。 在一个实施例中,一种方法包括基于边缘线的相似性从病例库中检索高质量的冠状设计提案。

    TEETH SEGMENTATION USING NEURAL NETWORKS
    6.
    发明公开

    公开(公告)号:US20240177307A1

    公开(公告)日:2024-05-30

    申请号:US18515179

    申请日:2023-11-20

    Abstract: A computer-implemented method and system of digitally segmenting teeth in a digital model comprises generating a panoramic image from a 3D digital model of a patient's dentition, labeling, using a first trained neural network, the panoramic image to provide a labeled panoramic image, mapping the labeled panoramic image to corresponding coarse digital surface triangle labels in the 3D digital model to provide a labeled 3D digital model, and segmenting the labeled 3D digital model to provide a segmented 3D digital model. A computer-implemented method and system of generating a panoramic image comprises determining, using a trained neural network, digital tooth bounding region(s) corresponding to digital teeth from a 2D depth map of a patient's dentition, connecting digital tooth bounding region(s) by a spline, determining sampled digital surface points from the sampled spline points; and determining associated digital surface points corresponding to each sampled digital surface point.

    Computer-Implemented Dental Restoration Design
    9.
    发明申请
    Computer-Implemented Dental Restoration Design 审中-公开
    计算机实施的牙齿修复设计

    公开(公告)号:US20150056576A1

    公开(公告)日:2015-02-26

    申请号:US14468946

    申请日:2014-08-26

    CPC classification number: A61C9/004 A61C13/0004

    Abstract: Computer-implemented methods of designing dental restorations and systems for performing the described methods are provided. In an embodiment, a method includes providing a virtual three dimensional representation of at least a portion of the patient's dentition that includes at least one preparation tooth, identifying a preparation margin on the virtual three dimensional representation, placing an arch form of a virtual tooth library in alignment with the virtual three dimensional representation, and proposing an initial restoration design based upon a tooth design obtained from the virtual tooth library.

    Abstract translation: 提供了计算机实现的用于执行所述方法的牙科修复体和系统的方法。 在一个实施例中,一种方法包括提供患者牙列的至少一部分的虚拟三维表示,其包括至少一个准备牙齿,识别虚拟三维表示上的准备余量,放置虚拟牙齿库的弓形 与虚拟三维表示一致,并提出基于从虚拟牙库获得的牙齿设计的初始恢复设计。

    Method and Apparatus for Shape Analysis, Storage and Retrieval of 3D Models with Application to Automactic Dental Restoration Design
    10.
    发明申请
    Method and Apparatus for Shape Analysis, Storage and Retrieval of 3D Models with Application to Automactic Dental Restoration Design 审中-公开
    用于形状分析,存储和检索应用于自动牙科修复设计的3D模型的方法和装置

    公开(公告)号:US20140278279A1

    公开(公告)日:2014-09-18

    申请号:US14211607

    申请日:2014-03-14

    Abstract: A method for compact and descriptive representation of teeth shape, or other shapes, in terms of characteristic curves and its application to generation of automatic designs within dental CAD software or other software is provided. In an embodiment, a method includes capturing tooth shape by a network of characteristic curves, such as margin lines. In an embodiment, a method includes compactly encoding curves as strings, which then can be indexed and searched efficiently by similarity. In an embodiment, a method includes retrieving high quality crown design proposals from a case repository based on similarity of margin line.

    Abstract translation: 提供了一种用于在特征曲线方面对牙齿形状或其他形状进行紧凑和描述性表示的方法,以及其在牙科CAD软件或其他软件中产生自动设计的应用。 在一个实施例中,一种方法包括通过特征曲线(例如边缘线)的网络捕获齿形。 在一个实施例中,方法包括将曲线紧凑地编码为字符串,然后可以通过相似性有效地索引和搜索。 在一个实施例中,一种方法包括基于边缘线的相似性从案件库中检索高质量的冠设计提案。

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