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MIT movie screen delivers 3D dazzle without the glasses

by • July 24, 2016 • No Comments

3D cinema can bring dinosaur jaws right up to your nose, but it is actually a wonder the excellent beasts don’t just laugh when they see the oddball glasses on your head that manufactures the effect possible. A new innovation of MIT takes a well-known trick known as the parallax barrier and leverages it in a way particular to how we move our heads in film theaters. A tiny prototype via 50 mirrors and lenses has been created and, if researchers can advance upon the thought, glassless 3D viewing can just become the future of cinema.

Parallax barriers are the way in that a few current 3D devices – like the Nintendo 3DS – donate a multi-dimensional viewing experience direct to our eyes without the require for glasses. It all but works by arranging barriers on the screen (crystals in the case of the 3DS) that allow each of our eyes to just see sure images that are slightly various of each other. When the brain puts those images together, the main picture appears to have a three-dimensional depth. In a way, it is actually no various than those old-fashioned stereoscopic images that utilized to be sold on boardwalks eachwhere.

The parallax barrier approach works on the 3DS for the reason gamers can all but hold the screen at precisely the right position to line up the barriers with each eye and manufacture the 3D effect work (although, it should be stated that the new 3DS XL uses face-tracking innovation to manufacture store the barriers in line for a additional seamless 3D experience.)

So it works satisfactory with tiny screens, but for sizeabler screens, the issue gets additional complicated. Even with a television, it is actually complex to pull off parallax-barrier-enhanced viewing for the reason folks sit at various heights in the room and view the TV of various angles. The problem is compounded in the sizeable scale of a film theater.

To overcome the issue, the MIT researchers accomplished that folks don’t quite move around much in a film-theater seat. Their heads have a limited range of motion constrained by the seat in that any individual is sitting. So, the scientists decided that if they may beam individual parallax-barrier-enhanced images to each seat, each man may get a 3D experience without having to wear glasses.

A prototype followed that is just a little bigger than a pad of paper. Making use of 50 sets of mirrors and lenses, the process, that the researchers are calling Cinema 3D, beams a various set of images through parallax barriers customized to each seat in the theater.

“It remains to be seen whether the approach is financially feasible adequate to scale up to a full-blown theater,” says MIT professor Wojciech Matusik, one of the co-authors on a related paper. “But we are optimistic that this is an significant future step in developing glasses-free 3D for sizeable spaces like film theaters and auditoriums.”

The paper can be presented by initially author Netalee Efrat at this week’s SIGGRAPH computer-graphics conference in Anaheim, California.

This video offers a brief recap of the process.

Source: MIT

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