| 摘要 |
A system and method of multi-directional projection in which the optical output from a projector is modified in response to characteristics of nearby surfaces, upon which projection can be directed. The multi-directional projection system can provide beneficial output as a primary indicator or a secondary indicating device that can be controlled by itself or synchronously with other devices, such as output from a computer monitor. One implementation incorporates an optical sensor coupled to the projector for registering object characteristics (e.g., distance, reflectance, texture, color, and ambient lighting), such as during a mapping operation performed across the pan and tilt range of the projector. The projection system preferably incorporates a focusing assembly and may include other controllable optical elements such as zoom. Control is preferably provided through commands within an application programming interface (API), such as executing on a personal computer or other form of computer device.
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