| 摘要 |
A system and method for viewing a target in a background from a user's perspective. In one form, the views are selectable by the user on, for example, a GPS equipped cell phone, to include a view from the participant's position, zoom, pan, and tilt views, or views from another geographic location, giving increased situational awareness and identification of the target. Other information can be conveyed, such as messages or advertisements, on a billboard, which may be a geo-referenced area on or near the target. Preferably, an orientation mechanism shows when the device is correctly pointed to a target.
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