What is it?TV that punches you right in the face, or threatens to spill milk all over it.How does it work?Video is captured by a single camera with tw

What is it?

TV that punches you right in the face, or threatens to spill milk all over it.

How does it work?

Video is captured by a single camera with two lenses a small distance apart, giving two slightly different perspectives of the scene.

Both images are shown on screen simultaneously, but ?in interlaced, polarised lines. Fat Ray-Ban-style glasses with polarising lenses allow just one of the images to reach each eye.

Each eye sees a different perspective, creating an illusion of stereoscopic vision, fooling the brain into perceiving a 3D image.

Why should I care?

3D TV has been the dream since colour TV first blew minds back in the ’50s. Regardless of the size and resolution of your TV, a more immersive experience is guaranteed by a technology that allows the terrifying girl from The Ring to crawl out of it and across your living room. But not round the back of your sofa.

When is it coming?

It’s possible now. Sky recently demoed a 3D TV technology that it can deliver through its HD boxes. The trouble is, it relies on special glasses and requires a compatible TV. Though the premium over a standard TV is only £250 or so, it’s going to ?be a hard sell to anyone who’s just plumped for a shiny new set.

Still, ?it’s easier than Philips’ lenticular 3D technology, which tempers its spec-free operation with a price tag that runs into tens of thousands.

Find out about more next-gen video tech in the latest issue of Stuff Magazine