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    System for attaching rigid objects to deformed shapes in computer generated images via real time local approximation of deformation using rotation
    1.
    发明授权
    System for attaching rigid objects to deformed shapes in computer generated images via real time local approximation of deformation using rotation 有权
    用于通过使用旋转的实时局部近似变形在计算机生成的图像中将刚性对象附接到变形形状的系统

    公开(公告)号：US06525735B1

    公开(公告)日：2003-02-25

    申请号：US09553385

    申请日：2000-04-20

    申请人： Jerome Alain Maillot

    发明人： Jerome Alain Maillot

    IPC分类号： G06T1760

    CPC分类号： G06T13/20 ,  G06T17/00

    摘要： The present invention is a system that produces a position of a rigid object, such as a button, on a deformed model, such as an animated piece of cloth, at each cycle in an animation of the model by isotropically finding a linear approximation of the deformation at the model and finding a rotation of the object allowing attachment of the object to the model. The system removes shear and scaling from a linear transformation of an average deformation of the model. A volumetric area of the deformed model in which the object will reside and which is used for the position determination is specified essentially as a mapping of the object onto the model. The average deformation of the area is calculated and the linear transformation of the object is performed with the average deformation. In finding the rotation a rotation characteristic matrix is created and Eigen vectors or directions are extracted and correspond to the rotation.

    摘要翻译： 本发明是一种系统，其通过各向同性地找到模型的线性近似来在模型的动画中的每个周期在诸如动画片的变形模型上产生诸如按钮的刚性对象的位置 在模型处变形，并找到允许对象附着到模型的对象的旋转。 该系统从模型的平均变形的线性变换中去除剪切和缩放。 对象将驻留在其中的变形模型的体积面积和用于位置确定的体积面积基本上被指定为对象到模型的映射。 计算面积的平均变形，并用平均变形进行物体的线性变换。 在找到旋转时，创建旋转特征矩阵，并提取特征向量或方向并对应于旋转。

    Image-based virtual reality player with integrated 3D graphics objects
    2.
    发明授权
    Image-based virtual reality player with integrated 3D graphics objects 有权
    基于图像的虚拟现实播放器，具有集成的3D图形对象

    公开(公告)号：US06760026B2

    公开(公告)日：2004-07-06

    申请号：US09754660

    申请日：2001-01-02

    申请人： Jiang Li ,  Heung-Yeung Shum

    发明人： Jiang Li ,  Heung-Yeung Shum

    IPC分类号： G06T1760

    CPC分类号： G06T15/20 ,  A63F2300/6661 ,  A63F2300/69 ,  A63F2300/8082

    摘要： A system and process for rendering a virtual reality environment having an image-based background, which allows a viewer to move about and interact with 3D graphic objects in a virtual interaction space of the environment. This is generally accomplished by first rendering an image-based background, and separately rendering geometry-based foreground objects. The foreground objects are then integrated into the background, and a combined image is presented to the viewer.

    摘要翻译： 一种用于渲染具有基于图像的背景的虚拟现实环境的系统和过程，其允许观看者围绕环境的虚拟交互空间中的3D图形对象移动并与其交互。 这通常是通过首先渲染基于图像的背景，并分别渲染基于几何的前景对象来实现的。 然后将前景对象集成到背景中，并且将合并的图像呈现给观看者。