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Qube Cinema XP-I Streams 4K 3D from a Single Server
Published on Wednesday, 25 January 2012
Qube Cinema delivered a high bit-rate 4K stereoscopic DCP through two Barco projectors on an 80’ 
by 60’ Giant Screen to a live audience at the Moody Gardens Digital Cinema Symposium in Texas
earlier this month.
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| The demonstration used a standard Qube XP-I server paired with Qube Xi 4K Integrated Media Blocks, the IMBs, installed in two Barco DP4K-32B projectors. The data speeds of the Qube XP-I server mean that exhibitors can achieve a high bit-rate, stereoscopic 4K projection from a single DCP, through a single server driving two projectors, each with its own IMB. | |
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| At the Digital Cinema Symposium, the Qube Cinema system was playing back an 800 Mbps DCP, more than three times the maximum DCI bit rate specification of 250. The make it possible, for the first time, for a single server with one DCP to, each with their own IMB. | |
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| Qube Cinema also demonstrated the high frame rate capabilities of the Qube XP-I server with 2K stereoscopic content on the Giant Screen. This demonstration compared 3D material at 24, 48 and 60 fps. At 60 fps, motion blur disappears and detail is clearly visible in the moving images. Accustomed to 24 fps playback, many people are not aware of the image compromises associated with this standard, especially for stereo 3D but the difference was immediately apparent during the Qube presentation, which included side-by-side split-screen comparisons. | |
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| After seeing her latest movie ‘Space Junk 3D’ on the giant screen, Director Melissa Butts said, “Seeing the film in 4K 3D was a startling experience. All the hard work we put into shading, lighting and textures was that much more brilliant and remarkable. What Qube is offering is very exciting for filmmakers and audiences. With all the detail, everything just looks and feels more real." | |
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| Andy Wood, the senior vice president of business development at D3D Cinema and Giant Screen Films, said that, at standard DCI specs, dual projector 4K 3D playback could only be achieved with a complicated double server configuration which included ancillary sync generators and a restrictive setup. He feels Qube Cinema has made 4K 3D and high frame rate 2K much more possible, allowing a projectionist to power multiple projectors through a single interface. As currently configured, the Qube XP-I server with the Qube Xi 4K IMB is capable of data rates of up to 1,000 Mbps – or 500 Mbps per projector, allowing 4K stereo 3D. Frame rates of 30 fps are supported for 4K projection, and up to 120 fps for 2K content. www.qubecinema.com |
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