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    • 3. 发明授权
    • Method and system for hybrid trackball and immersive navigation in a virtual environment
    • 在虚拟环境中混合轨迹球和沉浸式导航的方法和系统
    • US07893935B1
    • 2011-02-22
    • US12592686
    • 2009-11-30
    • Howard Neely, IIIJason FoxMathias KolschMatthew ShompheJason Jerald
    • Howard Neely, IIIJason FoxMathias KolschMatthew ShompheJason Jerald
    • G06T15/00G09G5/00
    • G06F3/012G06F3/011G06F3/013G06F3/017G06F3/04815G06F3/04842
    • The present invention relates to a system, method, and computer program product for immersive navigation in a virtual environment (VE) suitable for allowing a user to change a view orientation in the VE independently of physical orientation of a user input, such as orientation of the user's head. Specifically, the present invention combines three distinct virtual reality navigation metaphors (trackball navigation, grab navigation, and immersive navigation) into a hybrid navigation approach generating a final virtual-viewpoint that correlates to the characteristics of an intermediate virtual-viewpoint defined by radius, pitch, and heading of a virtual reference sphere (as in trackball navigation), while the final virtual-viewpoint also adjusts the location and gaze direction of the intermediate virtual-viewpoint based on pitch, heading, and roll of the user's head (as in immersive navigation), thus allowing the user to view a point of interest in the VE while simultaneously facing comfortably forward in the physical world.
    • 本发明涉及一种用于虚拟环境(VE)中的沉浸式导航的系统,方法和计算机程序产品,所述虚拟环境(VE)适于允许用户独立于用户输入的物理定向改变VE中的视图取向,诸如 用户的头。 具体地,本发明将三种不同的虚拟现实导航隐喻(轨迹球导航,抓取导航和沉浸式导航)组合到混合导航方法中,该混合导航方法产生与由半径定义的中间虚拟视点的特性相关的最终虚拟视点 ,以及虚拟参考球的方向(如轨迹球导航),而最终的虚拟视点还可以基于用户头部的俯仰,航向和滚动来调整中间虚拟视点的位置和视线方向(如沉浸式 导航),从而允许用户在物理世界中同时面对舒适地向前观看VE中的兴趣点。
    • 7. 发明授权
    • System and method for operating in a virtual environment
    • 在虚拟环境中运行的系统和方法
    • US07646394B1
    • 2010-01-12
    • US11075354
    • 2005-03-07
    • Howard Neely, IIIJason FoxMathias KolschMatt ShompheJason JaraldMike Daily
    • Howard Neely, IIIJason FoxMathias KolschMatt ShompheJason JaraldMike Daily
    • G09G5/00G06T15/00G06F3/033
    • G06F3/012G06F3/011G06F3/013G06F3/017G06F3/04815G06F3/04842
    • The present invention relates to a system, method and computer program product for enabling user interaction with objects in a virtual environment independently of apparent virtual viewpoint altitude, by non-linearly scaling the virtual actuator. In doing so, the system receives a virtual-viewpoint position and a virtual actuator position from a virtual environment processing subsystem, and a real-viewpoint position and a real-actuator position from a real-world environment tracking subsystem. An xy-scale factor is then calculated based on the virtual-viewpoint position. A non-linear mapping is thereafter calculated between a real dataset and a virtual dataset based on the xy-scale-factor. The real dataset comprises the real-actuator position and the real-viewpoint position in the real-world environment, and the virtual dataset comprises the virtual-actuator position and the virtual-viewpoint position in the virtual environment.
    • 本发明涉及一种系统,方法和计算机程序产品,通过非线性缩放虚拟致动器,使得用户能够与虚拟环境中的对象独立于视在虚拟视点高度来进行交互。 在这样做时,系统从虚拟环境处理子系统接收虚拟视点位置和虚拟致动器位置,以及来自真实环境跟踪子系统的实时视点位置和实际执行器位置。 然后基于虚拟视点位置来计算xy比例因子。 此后,在真实数据集和基于xy比例因子的虚拟数据集之间计算非线性映射。 实际数据集包括实际环境中的实际执行器位置和实际视点位置,虚拟数据集包括虚拟环境中的虚拟执行机构位置和虚拟视点位置。
    • 10. 发明授权
    • Analogical reasoning system
    • 模拟推理系统
    • US07599902B2
    • 2009-10-06
    • US11413904
    • 2006-04-27
    • Jason FoxChris FurmanskiCollin Green
    • Jason FoxChris FurmanskiCollin Green
    • G06N7/04
    • G06N5/04G06N3/0427
    • The present invention relates to a general-purpose analogical reasoning system. More specifically, the present invention relates to a high-performance, semantic-based hybrid architecture for analogical reasoning, capable of finding correspondences between a novel situation and a known situation using relational symmetries, object similarities, or a combination of the two. The system is a high-performance symbolic connectionist model which multiplexes activation across a non-temporal dimension and uses controlled activation flow based on an analogical network structure. The system uses incremental inference to stop inference early for object correspondence, uses initial mappings to constrain future mappings, uses inferred mappings to synchronize activation, and independent mapping based on roles, superficial similarity, or composites.
    • 本发明涉及通用模拟推理系统。 更具体地,本发明涉及一种用于模拟推理的高性能,基于语义的混合架构,其能够使用关系对称性,对象相似性或两者的组合来发现新情况与已知情况之间的对应关系。 该系统是一种高性能符号连接器模型,其跨非时间维度复用激活,并使用基于模拟网络结构的受控激活流。 系统使用增量推理来早期停止对象对称的推理,使用初始映射来约束未来的映射,使用推断的映射来同步激活,以及基于角色,表面相似性或复合体的独立映射。