Projected light displays using visual feedback
Projected light displays using visual feedback
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使用视觉反馈的投影光显示
DOI：
10.1109/icarcv.2002.1238548
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
G. Sukthankar
中科院分区：
文献类型：
--
作者：
James M. Rehg;M. Flagg;Tat;R. Sukthankar;G. Sukthankar
一个由协调的投影仪和摄像机组成的系统，能够创造出不受环境干扰的投影光显示器。本文描述了解决该问题的几何和光度方面的方法：(1)即使系统组件（投影仪，相机或屏幕）移动，投影图像也保持稳定；(2)显示屏自动去除由于用户在投影机和屏幕之间移动而产生的阴影，同时抑制投射在用户身上的光线。前者可以在不知道系统组件位置的情况下完成。后者可以在不直接观察闭塞器的情况下实现。我们证明了该系统对环境干扰的响应速度快，并且实现了低稳态误差。
A system of coordinated projectors and cameras enables the creation of projected light displays that are robust to environmental disturbances. This paper describes approaches for tackling both geometric and photometric aspects of the problem: (1) the projected image remains stable even when the system components (projector, camera or screen) are moved; (2) the display automatically removes shadows caused by users moving between a projector and the screen, while simultaneously suppressing projected light on the user. The former can be accomplished without knowing the positions of the system components. The latter can be achieved without direct observation of the occluder. We demonstrate that the system responds quickly to environmental disturbances and achieves low steady-state errors.