Groovy Google Earth interface

Holographic Google Earth from Nicolas Loeillot on Vimeo.

How cool is this? Google Earth projected into the air as a 2D hologram? From the Google Earth Blog:
The technology comes from UbiqWindow and lets a computer screen be projected in mid-air. They have devised a touchless way to interact with the "hologram", and Google Earth is a great way to show off its capabilities. it's not a 3D projection, just 2D. But, it sure looks cool.

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Looks way cool, and reminds me of a Google Earth-like tool my sadly deceased pen-pal Ewa and I came up with. This technology might actually allow it to come to fruition, as it provides the basic platform.

However, it does not look like the hologram is actually projected into the air yet! The video makes it difficult to see just what is happening, but I keep seeing vertical lines with differing light levels on either side, indicating a glass prism of some kind being used as a projection surface. If you watch the video of the pretty young "assistant" on their website, notice that she materializes in the same location and "disintegrates" within a rectangular boundary; and in the shots from the reverse angle one can see the reflection of the camera operator --- the "assistant" is projected into a glass prism, like most holograms.

I had imagined using a modified light-pen as an interface; but it appears that the computer's ability to track finger-movements is quite adequate.

Projecting the globe into the air would have allowed the controller to zoom in and out almost indefinitely while an audience watches from any number of angles. But I suppose a projection into an appropriately large prism would be almost as rewarding, and would not diminish the tool's effectiveness.
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