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    • 10. 发明授权
    • Orthodontic digital setups
    • 正畸数字设置
    • US08897902B2
    • 2014-11-25
    • US14000151
    • 2012-02-17
    • Peter SeeRichard E. RabyNicholas A. Stark
    • Peter SeeRichard E. RabyNicholas A. Stark
    • G05B19/18G06F19/00A61C3/00A61C13/08A61C11/00A61C9/00G06T19/00A61C7/00
    • A61C7/002A61C2007/004G06F19/12G06T19/00G06T2210/41G16H50/50
    • Methods for recognizing a virtual tooth surface, defining a virtual tooth coordinate system, and simulating a collision between virtual teeth are provided. Methods include receiving input data specifying a point on the rendered surface model associated with a tooth, deriving a perimeter on the surface model of the tooth, and analyzing the surface model along a plurality of paths outwardly extending from points on the perimeter. Methods also include receiving point input data, receiving axis input data that defines first and second axes associated with the virtual tooth, computing a substantially normal vector for a portion of the tooth surface surrounding the point, and computing a coordinate system. Methods also include receiving permissible movement input data directed to permissible movement of a first virtual tooth, bringing the first virtual tooth into contact with a second virtual tooth, and displaying data resulting from the simulation.
    • 提供了用于识别虚拟牙齿表面,限定虚拟牙坐标系以及模拟虚拟牙齿之间的碰撞的方法。 方法包括接收指定与牙齿相关联的渲染表面模型上的点的输入数据,导出牙齿的表面模型上的周长,以及沿着从周边上的点向外延伸的多个路径来分析表面模型。 方法还包括接收点输入数据,接收轴输入数据,其定义与虚拟齿相关联的第一和第二轴,计算围绕点的牙齿表面的一部分的基本法线向量,以及计算坐标系。 方法还包括接收针对第一虚拟齿的允许移动的允许运动输入数据,使第一虚拟齿与第二虚拟齿接触,以及显示由模拟产生的数据。