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Images are projected onto clean air

07.05.2004

A small American firm "102 Technology" has developed a method for projecting images into clean air.

The projector can work as a TV or computer monitor. Screenless projectors are known to throw an image onto a curtain of laminar fog or steam, but here a high-quality color image appears simply in the air above the projector.

So far, only two prototypes of the projector have been made: one gives an image with a diagonal of 105, the other - 38 centimeters. The image can be interactive, that is, you can use your hand, like a computer mouse cursor, to drag file icons and turn on one or another computer function.

Since the patenting of the device and process has not yet been completed, the company representatives do not give out a secret. They only say that a laser is used and that for work the projector passes air through itself without adding anything to it.

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Special techniques help to distinguish a real photo from a "photoshop". Some of them are based on technical analysis of the original graphical data. The fact is that different graphic tools leave their invisible imprints in the image. Therefore, it is possible to find traces of an image change, or to show that one image is assembled from several separate pieces, even if from a graphical point of view the installation was done perfectly.

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The result of the operation of a generative adversarial network is always some kind of compromise solution aimed at obtaining a high-quality final result, and not a 100% victory for one of the networks. Whereas a network that only looks for differences can learn to do this very efficiently by finding traces of the operation of a generative adversarial network invisible to the human eye.

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