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Video Assist computers FAQ - Wolf Seeberg Video

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degree (ArtD.) in film editing (digital postproduction). I'm a co-owner of AVI<br />

STUDIO (www.avistudio.sk ), postproduction and rental company in Slovakia.<br />

2 years ago I have started to work on HD Digital <strong>Video</strong> <strong>Assist</strong> based on Mac<br />

platform. It took a year to get the prototype, which I have extensively used on our<br />

RED ONE productions. QTAKE HD runs on OS X Leopard using latest software<br />

and hardware technology available from Apple, Inc. It uses QuickTime-based<br />

movie files so you can share your media across QuickTime compatible<br />

applications, such as Final Cut Pro. QTAKE HD uses video input hardware from<br />

AJA and BlackMagicDesign to capture High Definition video, audio and timecode<br />

information. Each clip is captured to a high-speed media storage and can be<br />

retrieved instantly for playback or editing.”<br />

(Note: a system designed by one person will only be alive as long as that person<br />

is alive and willing and able to support the technology, if that person develops<br />

other interests you are on your own ed.).<br />

http://in2core.com http://www.qtakehd.com/#<br />

Vlado Struhar , +421 905 659 757 vlado@in2core.com<br />

repped in USA by : Mark L. Pederson<br />

mark@offhollywoodpictures.com http://offhollywoodpictures.com<br />

580 Broadway, 8th Floor, New York, NY 10012, p 212.260.8400 f 212.260.2437<br />

review article: http://www.finalcutuser.com/2009/04/10/offhollywood-announcesqtake-hd-advanced-video-assist-system/<br />

Vlado writes: IMHO, the best video assist solution for Stereoscopic production is<br />

the QTAKE HDx2.<br />

I will tell you why.<br />

It is true that most popular monitoring solution is the HD 3D monitor with HDMI<br />

input (JVC makes good ones). It uses "interlaced" polarized film in front of the<br />

screen to differently polarize odd and even lines. So essentially, when the crew<br />

put their cheap glasses on, they will see odd lines with one eye and even lines<br />

with another and the brain will construct 3D image out of it. 3D monitors however<br />

don't do any processing. They have only one input where you need to supply<br />

muxed 3D video signal.<br />

QTAKE HD is the Mac based software running on an off-the-shelf 8-core MacPro<br />

with AJA Kona3 and internal software raid of 3 drives. It uses Kona3 to capture 2<br />

streams of HD-SDI in perfect sync (you need to genlock 2 cameras anyway for<br />

3D). But... unlike other video assist equipment, QTAKE will further process 2<br />

separate streams to combine them in any industry standard 3D muxed output<br />

(line-by-line, side-by-side, dlp mesh...or even anaglyph). You just need to<br />

connect secondary DVI output of your MacPro to 3D monitor.<br />

Or use conversion to and from SDI (or optical fiber) to send this signal further<br />

than 15 meters.<br />

QTAKE HD is recording both cameras separately, so you can change interocular<br />

distance and convergence anytime per take (by horizontal image shift). There is<br />

20

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