Multi-viewer three dimensional (3-D) virtual display system and
operating method therefor
    2.
    发明授权
    Multi-viewer three dimensional (3-D) virtual display system and operating method therefor 失效
    多观点三维(3-D)虚拟显示系统及其操作方法

    公开(公告)号:US5781229A

    公开(公告)日:1998-07-14

    申请号:US802901

    申请日:1997-02-18

    IPC分类号: H04N5/74 H04N13/00 H04N13/04

    摘要: A three-dimensional (3-D) virtual display system for displaying a flicker-free 3-D virtual image to each of N viewers randomly dispersed about a horizontally disposed viewing screen, where N is an integer greater than 1, includes a laser projector for generating N.times.M image pairs responsive to a video signal comprising the N.times.M image pairs, N transmitters associated with respective ones of the N viewers, each of the N transmitters generating a unique coded pulse, a detector for determining the position of each of the N viewers relative to the viewing screen responsive to the respective unique coded pulse and for generating respective position data, a graphics processor for generating the video signal responsive to the position data, and N selectors associated with the N viewers for selecting the M image pairs out of the N.times.M image pairs allocated to each of the N viewers, respectively. The projector includes an electron-beam-pumped semiconductor laser (EBSL) screen, e.g., a vertical cavity surface emitting laser screen. In an exemplary case, the video signal carries in excess of 1000 image pairs per second, which is far beyond the capability of conventional cathode ray tubes (CRTs) to display. A method for generating N 3D virtual images and a corresponding video signal are also described.

    摘要翻译: 一种三维(3-D)虚拟显示系统,用于向N个观看者中随机分散的N个观看者中的每一个显示无闪烁的3-D虚拟图像,其中N是大于1的整数,其中N是大于1的整数,包括激光投影仪 用于产生响应于包括所述N×M图像对的视频信号的N×M图像对,与所述N个观看者中的所述N个观看者相关联的N个发射机,所述N个发射机中的每一个生成唯一的编码脉冲,用于确定所述N个观看者中的每一个的位置的检测器 相对于观看屏幕响应于相应的唯一编码脉冲并且用于产生相应的位置数据,用于响应于位置数据生成视频信号的图形处理器,以及与N个观看者相关联的N个选择器,用于从 分别分配给N个观看者中的每一个的NxM图像对。 投影仪包括电子束泵浦半导体激光器(EBSL)屏幕,例如垂直腔表面发射激光屏。 在示例性情况下,视频信号每秒传输超过1000个图像对,这远远超出了常规阴极射线管(CRT)显示的能力。 还描述了一种用于产生N个3D虚拟图像和相应的视频信号的方法。