"It is about a dream and an image and not a projection of someone that is instrumental in setting the stage, " she said.

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Of course, much will depend on how good the projection is, but already "the image quality of these micro projectors can be impressive considering their size, " notes Aloysius Choong, an analyst with research firm IDC, who's seen a few prototypes in action.

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When combined with a suitable light source and projection optics, the array of mirrors can project an image.

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Finally, no longer is there much truth in the image of Left-Bank fleapits with scratchy projection, tinny sound, and usherettes demanding tips.

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By using the latest in rear-projection technology, a high resolution, colour 3D-like holographic image is projected onto a flat two-dimensional sheet of acrylic in the shape of a woman.

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Using technologies from the field of digital entertainment-including game engines, multi-user environments, motion capture and stereoscopic projection-the installations in Real Virtuality include three works commissioned by Museum of the Moving Image, and two New York museum premieres of newly completed works.

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It can also identify and monitor the position of the eyes, so it knows exactly where each image needs to be beamed, and passes this information on to the holographic-projection system.

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What we're about to show you is decidedly low-tech -- it's essentially a projection screen with a sharp curve at the bottom -- but the resulting effect conveys a more realistic 3D image, for certain applications, at least.

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