Researchers Have Developed 3D Movie Screens That Don’t Require Glasses

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A prototype display, developed by the Computer Science and Artificial Intelligence Lab (CSAIL) together with Israel’s Weizmann Institute of Science, lets audiences enjoy a 3D movie in a movie theatre, minus those pesky 3D glasses.

The technology uses a special collection of lenses and mirrors that allow users to enjoy the 3D viewing experience from any seat in the theatre.

While glasses-free 3D viewing already exists, current methods rely on screens with massive resolution requirements, making it impractical to recreate the big-screen movie theatre experience.

This, however, is the “first technical approach that allows for glasses-free 3D on a large scale,” explains Wojciech Matusik, the MIT professor who co-authored the paper on the technology.

In a television, for instance, 3D technology allows each eye to see different sets of pixels to simulate the sense of depth. This is called a parallax barrier, which has to be at a consistent distance from the viewer.

For larger spaces such as movie theatres, the viewer will have to be at various angles and distances, which called for the team behind this new technology to create new, physical projectors that would cover the entire audience range.

While possible, theatres would have to sacrifice image resolution, which is also key to the 3D viewing experience.

Cinema 3D encodes various parallax barriers in a single display, which allows an individual viewer – regardless of position in the theatre – to see a parallax barrier specific to their position.

The range of views is now replicated across the entire space using mirrors and lenses within the technology’s special optics system.

The technology is not currently available on the market, but further development and future versions of the technology as it evolves could allow theatres to offer a glasses-free movie experience as more filmmakers employ 3D technology.

The range of views is now replicated across the entire space using mirrors and lenses within the technology’s special optics system.

The technology is not currently available on the market, but further development and future versions of the technology as it evolves could allow theatres to offer a glasses-free movie experience as more filmmakers employ 3D technology.

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