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    System and method for tracking facial muscle and eye motion for computer graphics animation
    1.
    发明授权
    System and method for tracking facial muscle and eye motion for computer graphics animation 有权
    用于跟踪面部肌肉和眼睛运动的计算机图形动画的系统和方法

    公开(公告)号：US07554549B2

    公开(公告)日：2009-06-30

    申请号：US10984488

    申请日：2004-11-08

    申请人： Mark Sagar ,  Remington Scott

    发明人： Mark Sagar ,  Remington Scott

    IPC分类号： G06T13/00 ,  G06T15/70 ,  A61B5/04

    CPC分类号： G06T13/40 ,  A61B5/0488 ,  A61B5/1114 ,  A61B5/1126 ,  A61B5/6814 ,  A61B2562/04 ,  G06F3/013 ,  G06F3/015

    摘要： A motion tracking system enables faithful capture of subtle facial and eye motion using a surface electromyography (EMG) detection method to detect muscle movements and an electrooculogram (EOG) detection method to detect eye movements. An embodiment of the motion tracking animation system comprises a plurality of pairs of EOG electrodes adapted to be affixed to the skin surface of the performer at locations adjacent to the performer's eyes. The EOG data comprises electrical signals corresponding to eye movements of a performer during a performance. Programming instructions further provide processing of the EOG data and mapping of processed EOG data onto an animated character. As a result, the animated character will exhibit he same muscle and eye movements as the performer.

    摘要翻译： 运动跟踪系统使用表面肌电图（EMG）检测方法来检测肌肉运动和用于检测眼睛运动的电脉冲（EOG）检测方法，可以忠实地捕捉微妙的面部和眼睛运动。 运动跟踪动画系统的一个实施例包括多对EOG电极，其适于在与执行者眼睛相邻的位置处固定到执行者的皮肤表面。 EOG数据包括在执行期间对应于执行者的眼睛运动的电信号。 编程指令进一步提供EOG数据的处理和处理的EOG数据到动画角色的映射。 因此，动画角色将表现出与表演者相同的肌肉和眼睛运动。

    System and method for tracking facial muscle and eye motion for computer graphics animation
    2.
    发明申请
    System and method for tracking facial muscle and eye motion for computer graphics animation 有权
    用于跟踪面部肌肉和眼睛运动的计算机图形动画的系统和方法

    公开(公告)号：US20060071934A1

    公开(公告)日：2006-04-06

    申请号：US10984488

    申请日：2004-11-08

    申请人： Mark Sagar ,  Remington Scott

    发明人： Mark Sagar ,  Remington Scott

    IPC分类号： G06T15/70 ,  G06T13/00

    CPC分类号： G06T13/40 ,  A61B5/0488 ,  A61B5/1114 ,  A61B5/1126 ,  A61B5/6814 ,  A61B2562/04 ,  G06F3/013 ,  G06F3/015

    摘要： A motion tracking system enables faithful capture of subtle facial and eye motion using a surface electromyography (EMG) detection method to detect muscle movements and an electrooculogram (EOG) detection method to detect eye movements. Signals corresponding to the detected muscle and eye movements are used to control an animated character to exhibit the same movements performed by a performer. An embodiment of the motion tracking animation system comprises a plurality of pairs of EMG electrodes adapted to be affixed to a skin surface of a performer at plural locations corresponding to respective muscles, and a processor operatively coupled to the plurality of pairs of EMG electrodes. The processor includes programming instructions to perform the functions of acquiring EMG data from the plurality of pairs of EMG electrodes. The EMG data comprises electrical signals corresponding to muscle movements of the performer during a performance. The programming instructions further include processing the EMG data to provide a digital model of the muscle movements, and mapping the digital model onto an animated character. In another embodiment of the invention, a plurality of pairs of EOG electrodes are adapted to be affixed to the skin surface of the performer at locations adjacent to the performer's eyes. The processor is operatively coupled to the plurality of pairs of EOG electrodes and further includes programming instructions to perform the functions of acquiring EOG data from the plurality of pairs of EOG electrodes. The EOG data comprises electrical signals corresponding to eye movements of the performer during a performance. The programming instructions further provide processing of the EOG data and mapping of the processed EOG data onto the animated character. As a result, the animated character will exhibit the same muscle and eye movements as the performer.

    摘要翻译： 运动跟踪系统使用表面肌电图（EMG）检测方法来检测肌肉运动和用于检测眼睛运动的电脉冲（EOG）检测方法，可以忠实地捕捉微妙的面部和眼睛运动。 与检测到的肌肉和眼睛运动相对应的信号用于控制动画角色以表现由表演者执行的相同的移动。 运动跟踪动画系统的实施例包括多对EMG电极，其适于在对应于各个肌肉的多个位置处固定到执行者的皮肤表面，以及可操作地耦合到多对EMG电极的处理器。 处理器包括执行从多对EMG电极获取EMG数据的功能的编程指令。 EMG数据包括在执行期间对应于执行者的肌肉运动的电信号。 编程指令还包括处理EMG数据以提供肌肉运动的数字模型，并将数字模型映射到动画角色上。 在本发明的另一个实施例中，多对EOG电极适于在表演者的眼睛附近的位置处固定到表演者的皮肤表面。 处理器可操作地耦合到多对EOG电极对，并且还包括用于执行从多对EOG电极获取EOG数据的功能的编程指令。 EOG数据包括在执行期间对应于执行者的眼睛运动的电信号。 编程指令进一步提供EOG数据的处理和处理的EOG数据到动画角色的映射。 结果，动画角色将表现出与表演者相同的肌肉和眼睛运动。

    PERFORMANCE DRIVEN FACIAL ANIMATION
    3.
    发明申请
    PERFORMANCE DRIVEN FACIAL ANIMATION 有权
    性能驾驶面试动画

    公开(公告)号：US20110175921A1

    公开(公告)日：2011-07-21

    申请号：US12986095

    申请日：2011-01-06

    申请人： Parag Havaldar ,  Mark Sagar ,  Josh Ochoa

    发明人： Parag Havaldar ,  Mark Sagar ,  Josh Ochoa

    IPC分类号： G06T13/00

    CPC分类号： G06T13/40

    摘要： A method of animating a digital facial model, the method including: defining a plurality of action units; calibrating each action unit of the plurality of action units via an actor's performance; capturing first facial pose data; determining a plurality of weights, each weight of the plurality of weights uniquely corresponding to the each action unit, the plurality of weights characterizing a weighted combination of the plurality of action units, the weighted combination approximating the first facial pose data; generating a weighted activation by combining the results of applying the each weight to the each action unit; applying the weighted activation to the digital facial model; and recalibrating at least one action unit of the plurality of action units using input user adjustments to the weighted activation.

    摘要翻译： 一种动画化数字面部模型的方法，所述方法包括：定义多个动作单元; 通过演员的表演来校准多个动作单元中的每个动作单元; 捕获第一面部姿势数据; 确定多个权重，所述权重唯一地对应于每个动作单元，所述多个权重表征所述多个动作单元的加权组合，所述加权组合近似所述第一面部姿势数据; 通过将应用每个权重的结果组合到每个动作单元来产生加权激活; 将加权激活应用于数字面部模型; 以及使用对所述加权激活的输入用户调整来重新校准所述多个动作单元中的至少一个动作单元。

    Performance driven facial animation
    6.
    发明授权
    Performance driven facial animation 有权
    表演驱动面部动画

    公开(公告)号：US08279228B2

    公开(公告)日：2012-10-02

    申请号：US12986095

    申请日：2011-01-06

    申请人： Parag Havaldar ,  Mark Sagar ,  Josh Ochoa

    发明人： Parag Havaldar ,  Mark Sagar ,  Josh Ochoa

    IPC分类号： G06T13/00

    CPC分类号： G06T13/40

    摘要： A method of animating a digital facial model, the method including: defining a plurality of action units; calibrating each action unit of the plurality of action units via an actor's performance; capturing first facial pose data; determining a plurality of weights, each weight of the plurality of weights uniquely corresponding to the each action unit, the plurality of weights characterizing a weighted combination of the plurality of action units, the weighted combination approximating the first facial pose data; generating a weighted activation by combining the results of applying the each weight to the each action unit; applying the weighted activation to the digital facial model; and recalibrating at least one action unit of the plurality of action units using input user adjustments to the weighted activation.

    摘要翻译： 一种动画化数字面部模型的方法，所述方法包括：定义多个动作单元; 通过演员的表演来校准多个动作单元中的每个动作单元; 捕获第一面部姿势数据; 确定多个权重，所述权重唯一地对应于每个动作单元，所述多个权重表征所述多个动作单元的加权组合，所述加权组合近似所述第一面部姿势数据; 通过将应用每个权重的结果组合到每个动作单元来产生加权激活; 将加权激活应用于数字面部模型; 以及使用对所述加权激活的输入用户调整来重新校准所述多个动作单元中的至少一个动作单元。