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    • 41. 发明申请
    • Static and dynamic 3-D human face reconstruction
    • 静态和动态3-D人脸重建
    • US20050057569A1
    • 2005-03-17
    • US10649844
    • 2003-08-26
    • Michael Berger
    • Michael Berger
    • G06K9/00G06T13/00G06T15/70G10L21/06
    • G06T13/40G06K9/00315G10L2021/105
    • A system for three-dimensional (3-D) facial animation, including a base 3-D surface model representing a human face, and a set of displacement fields representing surface motion patterns associated with muscle movements. Each displacement field is a displacement vector varying over vertices of the base surface model and an intensity variable. Both the base surface model and displacement fields are acquired from a live subject by 3-D acquisition. The data are acquired using a surface acquisition system, capable of measuring the coordinates of a set of points on the subject's face and reconstructing the facial surface as a surface model. The base surface model is acquired by reconstructing the surface of the subject's face in the neutral pose. Each displacement field is acquired by reconstructing the surface of the subject's face in a series of poses of a muscle movement at increasing intensities. This results in a sequence of surface models exhibiting the changing shape of the face over the progress of the muscle movement. The displacement field is derived by calculating displacements at each selected intensity value and then interpolating over the known displacements.
    • 一种用于三维(3-D)面部动画的系统,包括表示人脸的基础3-D表面模型,以及一组代表与肌肉运动相关的表面运动模式的位移场。 每个位移场是在基础表面模型的顶点和强度变量上变化的位移矢量。 基础面模型和位移场均通过三维采集从实体主体获取。 使用表面采集系统获取数据,该系统能够测量被检者脸部上的一组点的坐标,并将面部表面重建为表面模型。 通过在中立姿态中重建被摄体的脸部的表面来获取基础表面模型。 通过以增加的强度在肌肉运动的一系列姿势中重建受试者的脸部的表面来获取每个位移场。 这导致在肌肉运动进展中表现出面部变化的形状的表面模型序列。 通过计算每个选定强度值下的位移,然后在已知位移上进行插值,得到位移场。