Projectors Could Soon Make 3D Movies Glasses-less

Monday, July 17th, 2017

 

When you hear the term “virtual reality” you probably start thinking about virtual reality headsets. While virtual reality (VR for short) has certainly developed over the last few years, VR is a still growing technology field – a technology field in which projector rentals may soon become much more important.

Film director James Cameron has made quite a few hits throughout his career but his 2009 film Avatar was a massive success which preceded (or more likely caused) other filmmakers incorporating 3D into their works. While I am extremely hesitant to call 3D glasses VR technology, Cameron’s box office hit  has encouraged him to continue looking for ways to improve 3D movie viewing. 

People watching a 3D movie

James Cameron is planning on making several Avatar sequels, and with these sequels he has plans for improving 3D movie technology. Cameron says that he wants to make 3D movie viewing glasses-less through the use of projectors. Cameron’s production company has renewed its contract with the projection company Christie Digital Systems in order to make a new form of 3D movie viewing.

If you are not sure how projectors could possibly be used for making a 3D movie viewing experience, here’s a video demonstration.

This video was made by a VR company called BroomX using their MK Player 360 projector. Considering the fact that BroomX is a startup company, it will be interesting to see what Cameron and Christie Digital are able to cook up with their deeper pockets.

 

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MIT Develops Glasses-Free 3D Projector, Bridges Gap Between 3D And Holographic Video

Wednesday, May 21st, 2014

790727003D entertainment has come a long way in recent years but users are still required to experience the technology via 3D glasses. The Camera Culture Group over at the Media Lab of MIT has just begun developing an all new 3D video projection system that will allow users to forgo the use of 3D glasses while also providing different users different perspective angles of the same object. According to the group, this technology will be used as a transition between the 3D technology of today and true holographic projection of the future.

MIT’s approach is to come up with a video projection system that doesn’t require the use of 3D glasses. This system will also have wide vision angles along with an ultra-high resolution while being mechanically simple, meaning you won’t have to deal with elaborate installations. In addition to that, this system is also aimed at being more economical than traditional holographic systems of similar quality.

The whole idea behind this technology from MIT is that it will act as a short term solution until something more refined is developed while also making it something users of traditional 2D systems will find attractive enough to start to transition into the 3D space.

What’s interesting about this technology is that it doesn’t simply produce an illusion or parallax. Instead, it creates an actual shift in perspective for multiple viewers looking at the image from multiple angles, providing that the illusion that you are looking at is a real life object. What’s more is that this technology provides better resolutions and contrasts than most 2D video.

Inside the projector is a set of flat panels comprised of liquid-crystal modulators. These panels act as tiny LCD screens that are set between the backlight source and the lens. The first set of LCDs produces light patterns at certain angles which then pass through the second set of LCDs at these exact angles. The patterns then go through a series of lenses arranged like a Keplerian telescope after which they pass through a transparent projection screen that is made up of lines of vertical lenses. This resolves the patterns into a 3D image that shifts as you move from one of eight PoVs to another.

The image is refreshed 240 times per second, which is less than that of a standard TV but more than standard-speed film. Even though the system will require a lot of bandwidth to operate, it does create the possibility of displaying ultra-high resolution video. This is achieved through data compression algorithms that focus on reproducing the edges of the images as opposed to the body of the images. In addition to that, the algorithm also produces a far brighter image with a stronger contrast by generating closer to “true black”, which is not possible with LCDs.

While we may still be a long way away from holographic projections similar to our favorite sci-fi movies, the technology is improving in that direction. This new system from MIT is being treated as a bridge between what we’ve envisioned from movies and what we currently have in terms of 3D projection. While the MIT team sees this technology having a use in entertainment, the technology could also have applications in collaborative designs and medical imaging.

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