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    • 83. 发明授权
    • Constructing shape skeletons of 3D objects using generalized Voronoi
diagrams
    • 使用广义Voronoi图构建3D对象的形状骨架
    • US6133921A
    • 2000-10-17
    • US862217
    • 1997-05-23
    • George M. TurkiyyahDuane W. StortiMark A. GanterHao Chen
    • George M. TurkiyyahDuane W. StortiMark A. GanterHao Chen
    • G06T17/20G06T17/00
    • G06T17/20
    • Starting with a solid model of a 3D object, an accurate skeleton is produced by minimizing internal and edge errors of an initial approximate skeleton. To produce the initial approximate skeleton, the boundary of the solid is densely sampled to obtain a set of surface data points. Delaunay triangulation is performed on the surface data points and exterior and spurious tetrahedra are removed, leaving substantially interior tetrahedra. Circumspheres are constructed that enclose the tetrahedra, and the centers of the circumspheres are connected based on tetrahedra adjacency, to form a Voronoi diagram. Closed Voronoi cells are identified comprising the initial approximate skeleton. The position of skeleton interior vertices are then adjusted to minimize their error, producing a refined polygonal approximation of the skeleton interior geometry. Positions of the skeleton edge vertices are adjusted to minimize the edge error, yielding an accurate polygonal approximation of the skeleton.
    • 从3D对象的实体模型开始,通过最小化初始近似骨架的内部和边缘错误来生成精确的骨架。 为了产生初始近似骨架,固体的边界被密集采样以获得一组表面数据点。 Delaunay三角测量在表面数据点进行,外部和虚拟四面体被去除,留下基本上内四面体。 构造围绕四面体的环形球,并且圆球的中心基于四面体相邻连接,以形成Voronoi图。 确定包含初始近似骨架的封闭Voronoi细胞。 然后调整骨骼内部顶点的位置以最小化其误差,从而产生骨架内部几何的精确多边形近似。 调整骨架边缘顶点的位置以最小化边缘误差,从而产生骨架的精确多边形近似。
    • 90. 发明授权
    • Method for switching system state and portable terminal
    • 用于切换系统状态和便携式终端的方法
    • US09141401B2
    • 2015-09-22
    • US13515778
    • 2010-12-13
    • Bin LiHao ChenQian Zhao
    • Bin LiHao ChenQian Zhao
    • G06F1/32G06F9/00G06F9/24G06F15/177G06F13/00G06F9/44G06F9/46H04W52/02G06F11/20H04W48/16H04W88/06
    • G06F9/4418G06F1/32G06F1/3287G06F9/441G06F9/461G06F11/2028G06F11/2038G06F11/2097H04W48/16H04W52/028H04W88/06Y02D10/44Y02D70/00
    • A method for switching system state and a portable terminal. The method is applied to a portable terminal comprising a first system and a second system. The second system has a second control module provided therein. The method comprises: obtaining, by the second system, state information of the first system through the second control module when at least one of the first system and the second system is in an inactive state; receiving, by the second control module, a system state switching event; switching, by the second control module, the second system to a state corresponding to the state information of the first system based on the state information of the first system. According to the embodiments of the present invention, when the system state is to be switched, it is not necessary that both systems are in the active state. Rather, the state information can be transmitted between the systems in the inactive state by using a control module provided in one or both of the systems, and the power consumption of the portable terminal can be reduced.
    • 一种用于切换系统状态和便携式终端的方法。 该方法应用于包括第一系统和第二系统的便携式终端。 第二系统具有设置在其中的第二控制模块。 该方法包括:当第一系统和第二系统中的至少一个处于非活动状态时,由第二系统获得通过第二控制模块的第一系统的状态信息; 由所述第二控制模块接收系统状态切换事件; 基于第一系统的状态信息,由第二控制模块将第二系统切换到与第一系统的状态信息对应的状态。 根据本发明的实施例,当要切换系统状态时,两个系统都不必处于活动状态。 相反,可以通过使用在一个或两个系统中提供的控制模块来在处于非活动状态的系统之间传送状态信息,并且可以减少便携式终端的功耗。