| 摘要 |
<p>The present invention, by means of aiming a digital camera (16) at a computer display (14) or projected image thereof, observes a user's pointer actions and maps them into the computer's virtual environment. This invention provides an inexpensive and portable alternative to systems employing traditional methods such as touch-screens. It can be demonstrated that the present invention is practical by implementing two applications: (1) a tool that enables the user to use a laser pointer (10) as a drawing tool; and (2) presentation software that can be activated by the user's pointing actions. The invention extends to multiple users, multiple cameras and/or multiple display devices.</p> |
