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    • 93. 发明申请
    • METHOD FOR TRACKING MOTION OF A FACE
    • 监测面部运动的方法
    • WO02031772A2
    • 2002-04-18
    • PCT/IB2001/002736
    • 2001-10-09
    • G06T7/20G06T15/70
    • G06K9/00315G06K9/00228G06K9/3216G06K2009/3225G06T7/246
    • A method for tracking the motion of a person's face for the purpose of animating a 3-D face model of the same or another person is disclosed. The 3-D face model carries both the geometry (shape) and the texture (color) characteristics of the person's face. The shape of the face model is represented via a 3-D triangular mesh (geometry mesh), while the texture of the face model is represented via a 2-D composite image (texture image). Both the global motion and the local motion of the person's face are tracked. Global motion of the face involves the rotation and the translation of the face in 3-D. Local motion of the face involves the 3-D motion of the lips, eyebrows, etc., caused by speech and facial expressions. The 2-D positions of salient features of the person's face and/or markers placed on the person's face are automatically tracked in a time-sequence of 2-D images of the face. Global and local motion of the face are separately calculated using the tracked 2-D positions of the salient features or markers. Global motion is represented in a 2-D image by rotation and position vectors while local motion is represented by an action vector that specifies the amount of facial actions such as smiling-mouth, raised-eyebrows, etc.
    • 本发明涉及跟踪人脸的运动以用于该脸部的三维模型或另一个人的脸部的动画的方法。 上述三维人脸模型具有人脸的几何(形状)特征和人的纹理(颜色)特征。 使用三维三角形图案(几何图案)来表示面部模型的形状,而使用二维合成图像(纹理图像)来表示面部图案的纹理。 该方法跟踪全局运动和人脸的局部运动。 脸部的整体运动涉及三维脸部的旋转和平移。 脸部的局部运动涉及嘴唇,眉毛等的三维运动。 由言语和面部表情驱动。 在二维面部图像的时间顺序中自动确定人脸的特征和/或放置在人脸上的标志的二维位置。 使用所确定的特征或地标的二维位置分别计算全局运动和面部的局部运动。 全局运动通过旋转和位置矢量在二维图像中表示,而局部运动由动作矢量表示,该动作矢量指定面部执行的动作的量,例如由嘴部绘制的微笑或 眉毛上升。
    • 94. 发明申请
    • VIDEO ANALYSIS OF MOTION
    • 视频运动分析
    • WO1990015509A1
    • 1990-12-13
    • PCT/US1990003237
    • 1990-06-07
    • LOREDAN BIOMEDICAL, INC.
    • LOREDAN BIOMEDICAL, INC.ENGLE, Gary, L.
    • H04N07/18
    • G06K9/00348G06K9/3216G06K2009/3225G06T7/246
    • Motion analysis wherein a camera (14) converts an image of a body having illuminated markers placed thereon into plural image frames. A preprocessor (26) receives plural image lines and detects the occurrence of each marker in each line when a pixel amplitude exceeds a threshold, and an offset value representing the difference therebetween is added to a running total of values for the detected marker. Similarly, the offset is used to calculate moment for each pixel in each marker based on pixel line position. The calculated moment is added to a running total for the detected marker. Amplitude and moment sums for each pixel series for each marker in each line are passed to a processor which groups the amplitude and moment sums for each marker together. The grouped values are used to calculate a centroid value for each marker in real time, the result provided to a CPU.
    • 运动分析,其中相机(14)将其上放置有照明标记的身体的图像转换成多个图像帧。 当像素幅度超过阈值时,预处理器(26)接收多个图像行并且检测每行中的每个标记的出现,并且将表示它们之间的差的偏移值加到检测标记的值的运行总和中。 类似地,偏移用于基于像素线位置来计算每个标记中的每个像素的矩。 计算的时刻被添加到检测到的标记的运行总计。 每行中每个标记的每个像素系列的幅度和力矩总和被传递给处理器,该处理器将每个标记的振幅和力矩和组合在一起。 分组的值用于实时计算每个标记的质心值,结果提供给CPU。
    • 97. 发明公开
    • METHODS OF DETECTING AND MANAGING A FIDUCIAL MARKER DISPLAYED ON A DISPLAY DEVICE
    • 方法检测和管理对显示设备显示PASSER BRAND
    • EP3159829A1
    • 2017-04-26
    • EP15306690.7
    • 2015-10-21
    • Thomson Licensing
    • HUBERT, ERICHIRTZLIN, PATRICEMARVIE, JEAN-EUDES
    • G06K9/32G06T7/00G06K9/00
    • G06K9/3216G06K9/00671G06K2009/3225G06T7/74G06T2207/30208
    • There is proposed a method of detecting a fiducial marker displayed on a display device (2) in a real world, wherein a portable device (1), comprising a camera and a marker detector unit, performs: obtaining current attribute information representative of a current value of at least one modifiable attribute associated with the displayed fiducial marker (5); detecting the displayed fiducial marker in an image displayed on the display device, according to the current attribute information; computing pose information representative of a pose of the portable device with regard to the displayed fiducial marker in the real world, according to the current attribute information and the detected displayed fiducial marker; and obtaining first new attribute information representative of a first new value of the at least one modifiable attribute, the first new value depending on the computed pose information.
    • 还提出了检测在现实世界中所显示的显示装置(2)上的基准标记,worin(1),包括照相机和标记检测单元的便携式装置的方法,执行:获取当前代表性的电流的属性信息 用显示的基准标记相关联的至少一个可修改属性的值(5); 检测显示在显示装置,gemäß到当前属性信息上的图像中所显示的基准标记; 计算姿态代表所述便携式装置的关于在现实世界中所显示的基准标记的姿势的信息,雅丁到当前属性信息和检测到的显示的基准标记; 获得和第一新的代表该至少一个可修改属性中的第一新的值的属性信息,第一新的值所计算的姿势信息根据。