Shadow Elimination and Blinding Light Suppression for Interactive Projected Displays
Shadow Elimination and Blinding Light Suppression for Interactive Projected Displays
复制标题
交互式投影显示器的阴影消除和眩目光抑制
DOI：
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复制
发表时间：
2007
影响因子：
5.2
通讯作者：
R. Sukthankar
中科院分区：
文献类型：
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作者：
J. Summet;M. Flagg;Tat;James M. Rehg;R. Sukthankar
基于正投影的交互式显示器的一个主要问题是用户在显示表面上投射出不期望的阴影。本文演示了可以通过使用安装在不同位置的多台投影仪对显示表面进行冗余照明来消除阴影。然而，仅靠这种技术并不能消除阴影：多个投影仪会在表面上创建多个黑暗区域（半影遮挡），并将不需要的光线投射到用户身上。这些问题可以通过主动修改投影输出来消除阴影并抑制落在遮挡用户上的光线来解决。本文对可用于实现冗余照明、阴影消除和眩光抑制的各种方法进行了分类，并评估了它们的性能。
A major problem with interactive displays based on front projection is that users cast undesirable shadows on the display surface. This paper demonstrates that shadows can be muted by redundantly illuminating the display surface using multiple projectors, all mounted at different locations. However, this technique alone does not eliminate shadows: Multiple projectors create multiple dark regions on the surface (penumbral occlusions) and cast undesirable light onto the users. These problems can be solved by eliminating shadows and suppressing the light that falls on occluding users by actively modifying the projected output. This paper categorizes various methods that can be used to achieve redundant illumination, shadow elimination, and blinding light suppression and evaluates their performance.