3D+2D TV Display Technology

With 3D+2D TV Display Technology, putting 3D(stereo glasses) Is Not Mandatory

Till now while watching a 3D movie you have to put your 3D glasses on your eyes, sometimes causing headache or stress and if you remove these 3D glasses from your eyes the picture become blurred but now you don't have to worry about putting these 3D(stereo glasses) necessarily.

Now Researchers at the University of California Santa Cruz have developed a  3D+2D display that allows viewers with stereo glasses to see three-dimensional images, while viewers without the glasses see a normal two-dimensional image.

With existing 3D television displays, viewers must wear stereo glasses to get the effect of seeing images on the screen in three dimensions, while viewers without the glasses see a blurry image. That's because the 3D TV shows a different image to each eye through the stereo glasses, and a viewer without the glasses sees both images superimposed, resulting in "ghosting."

"There are a lot of reasons why it would be desirable to not need the glasses," said James Davis, associate professor of computer science in the Baskin School of Engineering at UC Santa Cruz, who led the project. "They can be expensive, so you wouldn't want to buy extra pairs, and they can interfere with other activities."

Without 3D Glasses Image Gets Blurred

Davis's 3D+2D TV shows separate left and right images when viewed through glasses, but those without glasses see only the left image. The system also displays a third image, which is not seen through either lens of the glasses. The third image is the negative of the right image--bright where the right is dark, and dark where the right image is bright--canceling out the right image so those without glasses see only the left image.

With 3D+2D TV The Image Is Sharp For
Viewers With And Without Glasses

The technology isn't perfect because it compromises the available contrast to 2D viewers and so, as a compromise, the researchers show 3D viewers a dimmer image to the right eye and a brighter image to the left. According to a UCSC press release, the researchers found that brightness ratios between 20 and 60 percent were "acceptable" to viewers of both 2D and 3D pictures.

Davis developed the new technique with UCSC graduate students Steven Scher, Jing Liu, Rajan Vaish, and Prabath Gunawardane. His team will present their 3D+2D TV technology at SIGGRAPH 2013, the 40th International Conference and Exhibition on Computer Graphics and Interactive Techniques, on Thursday, July 25, in Anaheim.

The researchers built a prototype of their 3D+2D TV by aligning a 3D projector with a second, polarized projector used to project the negative of the right image. The image from the polarized projector is not visible through the LCD active shutter glasses synchronized to the 3D projector.

The researchers have filed a patent application, and one of Davis's students, Jing Liu, has been working with students at Stanford University's Graduate School of Business to look into starting a company based on this technology. They are off to a promising start, garnering positive feedback at Stanford's "Startup Weekend" business plan event, Davis said.

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Write by: RC - Monday, July 15, 2013

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