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    • 4. 发明授权
    • Method of facial landmark detection
    • 面部地标检测方法
    • US09471829B2
    • 2016-10-18
    • US13997296
    • 2011-03-31
    • Ang LiuYangzhou DuTao WangJianguo LiQiang LiYimin Zhang
    • Ang LiuYangzhou DuTao WangJianguo LiQiang LiYimin Zhang
    • G06K9/00G06K9/46G06K9/62
    • G06K9/00248G06K9/00281G06K9/6209
    • Detecting facial landmarks in a face detected in an image may be performed by first cropping a face rectangle region of the detected face in the image and generating an integral image based at least in part on the face rectangle region. Next, a cascade classifier may be executed for each facial landmark of the face rectangle region to produce one response image for each facial landmark based at least in part on the integral image. A plurality of Active Shape Model (ASM) initializations may be set up. ASM searching may be performed for each of the ASM initializations based at least in part on the response images, each ASM search resulting in a search result having a cost. Finally, a search result of the ASM searches having a lowest cost function may be selected, the selected search result indicating locations of the facial landmarks in the image.
    • 可以通过首先裁剪图像中检测到的面部的面部矩形区域并且至少部分地基于面部矩形区域来生成整体图像来检测在图像中检测到的面部中的面部界标。 接下来,可以对面部矩形区域的每个面部标记执行级联分类器,以至少部分地基于积分图像来为每个面部标记产生一个响应图像。 可以设置多个活动形状模型(ASM)初始化。 可以至少部分地基于响应图像来对每个ASM初始化执行ASM搜索,每个ASM搜索导致搜索结果具有成本。 最后,可以选择具有最低成本函数的ASM搜索的搜索结果,所选择的搜索结果指示图像中的面部地标的位置。
    • 8. 发明申请
    • FACIAL MOVEMENT BASED AVATAR ANIMATION
    • 基于动画的动画
    • US20140218371A1
    • 2014-08-07
    • US13997271
    • 2012-12-17
    • Yangzhou DuWenlong LiXiaofeng TongWei HuYimin Zhang
    • Yangzhou DuWenlong LiXiaofeng TongWei HuYimin Zhang
    • G06T13/80
    • G06T13/40G06K9/00315G06T13/80H04N7/157
    • Avatars are animated using predetermined avatar images that are selected based on facial features of a user extracted from video of the user. A user's facial features are tracked in a live video, facial feature parameters are determined from the tracked features, and avatar images are selected based on the facial feature parameters. The selected images are then displayed are sent to another device for display. Selecting and displaying different avatar images as a user's facial movements change animates the avatar. An avatar image can be selected from a series of avatar images representing a particular facial movement, such as blinking. An avatar image can also be generated from multiple avatar feature images selected from multiple avatar feature image series associated with different regions of a user's face (eyes, mouth, nose, eyebrows), which allows different regions of the avatar to be animated independently.
    • 使用基于从用户的视频提取的用户的面部特征来选择的预定化身图像来动画化身。 在实时视频中跟踪用户的面部特征,根据跟踪的特征确定面部特征参数,并且基于面部特征参数选择头像图像。 然后将所选择的图像显示发送到另一个设备进行显示。 选择和显示不同的头像图像作为用户的面部动作变化动画化身。 可以从代表特定面部运动的一系列化身图像中选择化身图像,例如闪烁。 还可以从从用户脸部(眼睛,嘴,鼻,眉毛)的不同区域相关联的多个化身特征图像系列中选择的多个化身特征图像中生成化身图像,其允许化身的不同区域独立地动画化。