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    • 43. 发明授权
    • Collaborative pointing devices
    • 协同指点设备
    • US07193608B2
    • 2007-03-20
    • US10445039
    • 2003-05-27
    • Wolfgang Stuerzlinger
    • Wolfgang Stuerzlinger
    • G09G5/08
    • G06F3/038G06F3/0386
    • A method and system for determining a position of laser spots in an initial image due to a plurality of laser pointer, the method having the steps of acquiring a sequence of images from a camera directed at the initial image to produce acquired images thereof, each said acquired image comprising image elements forming a frame; assigning each of said laser pointers a unique transmission pattern; registering said code of each of said laser pointers during frame i with a processor; determining said laser spots in said frame i; registering the appearance of the laser spots of each of the laser pointers during frame i with a processor; assigning positional coordinates to each said located laser spots so as to produce a sequence of positional coordinates (xi,yi) corresponding to sequential positions of the laser spot in the initial image; whereby said laser spots appear in the captured images in a pattern corresponding to said unique transmission pattern and each of said laser pointers is uniquely identifiable and tracked.
    • 一种用于确定由于多个激光指示器引起的初始图像中的激光点的位置的方法和系统,该方法具有以下步骤:从针对初始图像的相机获取图像序列,以产生其获取的图像,每个所述 获取的图像,包括形成帧的图像元素; 将每个所述激光指示器分配唯一的传输模式; 在帧i期间用处理器注册每个所述激光指示器的所述代码; 确定所述帧i中的所述激光点; 使用处理器在帧i期间记录每个激光指针的激光点的外观; 将位置坐标分配给每个所述定位的激光点,以产生对应于初始激光点中的激光点的顺序位置的位置坐标序列(x i,i,i,i) 图片; 由此所述激光点以对应于所述唯一传输图案的图案出现在所捕获的图像中,并且每个所述激光指示器是唯一可识别和跟踪的。