| 摘要 |
A technique for interfacing with graphical information on a display screen involves using a hand-held controller unit to collect image information that includes at least a portion of the display screen and using the image of the display screen to generate position data that is indicative of the position of the hand-held controller unit relative to the display screen. An action in a computer program related to the graphical information is then triggered in response to the position data and in response to a user input at the hand-held controller unit. Using this technique, a user can navigate a graphical user interface on a display screen with a hand-held controller unit without relying on beacon-based navigation.
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