公开(公告)号：US20090168027A1

公开(公告)日：2009-07-02

申请号：US11966463

申请日：2007-12-28

申请人： Joseph Wesslund Dunn ,  Gregory Joseph Dunn ,  Boaz Super ,  Tianli Yu

发明人： Joseph Wesslund Dunn ,  Gregory Joseph Dunn ,  Boaz Super ,  Tianli Yu

IPC分类号： G03B21/26

CPC分类号： G03B21/26

摘要： A projection system that prevents projection light on a presenter and provides a gesture based interface for visual enhancements is disclosed. The system may include a projector camera system comprising a computer communicating an image to a projector, the projector projecting the image on a screen, a stereo camera unit mounted approximately in the plane of the screen or at the projector and directed toward the presenter and communicating with the computer, and software that interprets the stereo camera data to distinguish and manipulate foreground and background features. The foreground feature may be the presenter relative to the screen or to the audience and room, or the presenter's hand relative to the presenter. The invention employs imaging stereo camera algorithms and techniques developed for foreground/background segmentation, image manipulation, and gesture recognition.

摘要翻译： 公开了一种防止投影灯在演示者上并提供用于视觉增强的基于手势的界面的投影系统。 该系统可以包括投影仪相机系统，包括计算机将图像传送到投影仪，投影仪将图像投影到屏幕上，立体相机单元大致安装在屏幕的平面中或在投影仪上并且指向演示者并且通信 与计算机和解释立体相机数据的软件，以区分和操纵前景和背景特征。 前景特征可以是相对于屏幕或者观众和房间的演示者，或者演示者相对于演示者的手。 本发明采用了用于前景/背景分割，图像处理和手势识别的成像立体相机算法和技术。

公开(公告)号：US20090164192A1

公开(公告)日：2009-06-25

申请号：US11962853

申请日：2007-12-21

申请人： Tianli Yu

发明人： Tianli Yu

IPC分类号： G06F17/50

CPC分类号： G06N7/005

摘要： A method is provided for determining probabilities of states of a system represented by a model including a plurality of nodes connected by links. Each node represents possible states of a corresponding part of the system and each link represents statistical dependencies between possible states of related nodes. The method includes applying a belief propagation algorithm to estimate a minimum energy of the system defining belief propagation messages. The belief propagation messages are compressed and approximate probabilities of the states of the system are determined from the compressed messages.

摘要翻译： 提供了一种用于确定由包括通过链接连接的多个节点的模型表示的系统的状态的概率的方法。 每个节点表示系统的相应部分的可能状态，并且每个链路表示相关节点的可能状态之间的统计依赖性。 该方法包括应用置信传播算法来估计定义置信传播消息的系统的最小能量。 信任传播消息被压缩，并且从压缩消息确定系统的状态的近似概率。