Tuesday, August 21, 2012

Tech For Glasses-free 3D Cinemas

Technology that could lead to the origination of glasses-free 3D drive-in theatre at cinemas has been created by researchers in South Korea.

It uses a blockade with slats so that when a spectator looks at the shade any of their eyes sees the picture differently.

As a outcome their brain creates an deception of depth.

TV makers have attempted to use a identical approach, but need viewers to be in a specific mark to see a 3D image.

This would not be probable in a motion picture where the assembly needs to be able to watch the shade from a far-reaching accumulation of angles.

The investigate was carried out at Seoul National University and appears in the biography Optics Express of the Optical Society .

"This new way seems to be a viable a for providing glasses-free 3D mood with front-projection technology - instead of using multi-part projectors, it usually uses one," mentioned Prof John Koshel from the College of Optical Sciences at the University of Arizona, who edited the investigate for publication.

He explained that the typical way to emanate 3D-images on a film shade was to use stereoscopy: the technique involves raised two 2D-images by a special filter.

To the exposed eye the two cancel out versions of the footage be present to be superimposed over any other. But if the spectator wears polarised eyeglasses the left lens usually lets in a of the images, and the correct lens the other, formulating a clarity of depth.

To go glasses-free TV makers have used a not similar technique involving what is well known as a "parallax barrier".

This involves fixation a blockade in front of the picture source that has slats in it identical to the of Venetian blind.

These slats are inclined so that light from a set of the TV screen's pixels shines by and is destined to a of the viewer's eye, and light from other set is shown to the other eye - with no overlap.

But this usually provides a 3D-effect if the watcher is sat in a specific spot.

Manufacturers have created televisions display a few pairs of images - permitting a singular shade to encouragement a few family members sat in specific positions. But they cannot encouragement the dozens - or even hundreds - of people sat in a motion picture at the same time.

The South Korean group mimicked this technique, but blending it to encouragement a ample wider accumulation of observation angles.

They did this by formulating the slat-effect using polarisers - identical to the used in the lenses of 3D motion picture glasses.

Their shade was moreover covered with a special coating, and this amalgamated with their adapated blockade constructed many pairs of images - sufficient in theory to accustom a motion picture audience.

The lead scientist Byoungho Lee, highbrow at Seoul National University, mentioned that more research was necessary, but the technology "might consecrate a simple, compact, and cost-effective draw close to producing at large existing 3D cinema, whilst moreover removing the need for wearing polarising glasses".

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