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1. 发明授权

US09814549B2 Method for creating flexible arch model of teeth for use in restorative dentistry 有权
公开(公告)号：US09814549B2
公开(公告)日：2017-11-14
申请号：US14853284
申请日：2015-09-14
申请人： Dentsply International, Inc.
发明人： Jinho Lee , Alexander Yarmarkovich , Kenneth Michael Flowers
IPC分类号： A61C13/00 , A61C13/34
CPC分类号： A61C13/0004 , A61C13/34
摘要： A flexible arch model (FAM) is computed to capture and parameterize the variations of the multiple real dental arches in a training set to reconstruct missing teeth in a patient's dental anatomy. Building the FAM includes acquiring multiple sets of digitized dental arches with a pair of maxillary (upper) and mandibular (lower) jaws in the right relative position and gathering a pre-defined set of landmark points on the occlusal surface of each arch all in the same order and same corresponding positions across multiple samples. The gathered vectors of landmark points are used to perform statistical modeling (e.g. Principal Component Analysis) to create a linear subspace of the feature points with the basis of principal components (when PCA is used) found during the procedure. An arbitrary set of landmark points on a pair of upper and lower arches can be reconstructed by a linear combination of the principal components within a reasonable range of variations captured from the training samples. The reconstructed landmark points can be used to build a full set tooth model in a dental arch.

2. 发明申请

US20160224690A1 System and Method for Adding Surface Detail to Digital Crown Models Created Using Statistical Techniques 审中-公开
标题翻译：使用统计技术创建数字皇冠模型的表面细节的系统和方法
公开(公告)号：US20160224690A1
公开(公告)日：2016-08-04
申请号：US14609774
申请日：2015-01-30
申请人： Dentsply International, Inc.
发明人： Jinho Lee , Alexander Yarmarkovich , Kenneth Michael Flowers
IPC分类号： G06F17/50 , A61C13/34 , G06F17/18 , A61C13/00
CPC分类号： G06F17/50 , A61C13/0004 , A61C13/34 , G06F17/18 , G16H20/40
摘要： Generating a crown model using a statistical method (such as k-means clustering, principal component analysis (PCA), or similar statistical methods) can result in a crown model that is missing sharpness details below the threshold of the statistical technique. A method is provided to add back the sharpness to the resulting model by combining a single full-featured example into the algorithms generating the statistical model. The end result is a crown model that is relatively simple to produce and manipulate in real time, yet maintains the anatomical sharpness of a natural tooth.
摘要翻译：使用统计方法（如k均值聚类，主成分分析（PCA）或类似的统计方法）生成冠状模型可能导致在统计技术阈值以下缺少锐度细节的冠状模型。提供了一种通过将单个全功能示例组合到生成统计模型的算法中来将清晰度添加到所得到的模型的方法。最终的结果是一个皇冠模型，其生产和实时操作相对简单，但保持了天然牙齿的解剖锐度。

3. 发明申请

US20170071706A1 Method For Creating Flexible Arch Model Of Teeth For Use In Restorative Dentistry 有权
标题翻译：在修复牙科中使用牙齿柔性拱形模型的方法
公开(公告)号：US20170071706A1
公开(公告)日：2017-03-16
申请号：US14853284
申请日：2015-09-14
申请人： Dentsply International, Inc.
发明人： Jinho Lee , Alexander Yarmarkovich , Kenneth Michael Flowers
IPC分类号： A61C13/00 , A61C13/34
CPC分类号： A61C13/0004 , A61C13/34
摘要： A flexible arch model (FAM) is computed to capture and parameterize the variations of the multiple real dental arches in a training set to reconstruct missing teeth in a patient's dental anatomy. Building the FAM includes acquiring multiple sets of digitized dental arches with a pair of maxillary (upper) and mandibular (lower) jaws in the right relative position and gathering a pre-defined set of landmark points on the occlusal surface of each arch all in the same order and same corresponding positions across multiple samples. The gathered vectors of landmark points are used to perform statistical modeling (e.g. Principal Component Analysis) to create a linear subspace of the feature points with the basis of principal components (when PCA is used) found during the procedure. An arbitrary set of landmark points on a pair of upper and lower arch can be reconstructed by a linear combination of the principal components within a reasonable range of variations captured from the training samples. The reconstructed landmark points can be used to build a full set tooth model in a dental arch.
摘要翻译：计算灵活的拱形模型（FAM）以捕获和参数化训练集中的多个实际牙弓的变化，以重建病人牙齿解剖结构中的缺牙。建立FAM包括在正确的相对位置获取多组数字化的牙弓，其具有一对上颌（上）和下颌（下）颚，并在每个拱的咬合面上收集预定义的一组地标点，相同的顺序和相同的相应位置跨多个样本。所收集的地标点向量用于执行统计建模（例如主成分分析），以在过程期间发现基本成分（当使用PCA时）创建特征点的线性子空间。可以通过在从训练样本捕获的合理变化范围内的主成分的线性组合来重建一对上下弓上的任意一组地标点。重建的地标点可用于在牙弓中建立全套牙模型。

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