my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » Automatic Projector Calibration

Author Topic: Automatic Projector Calibration Patrick Dunn Expert Film Handler Posts: 120 From: newark, DE, United states Registered: Aug 2005 posted 03-31-2008 02:15 PM                        YouTube: Automatic Calibration This is very cool. Using sensors behind a screen to keep digital images from being distorted. This could be extremely useful for installing digital projectors they could have the film projector dead center and the digital projector off to the side, or far out of the way and neither image will be distorted, or one side out of focus.  |  IP: Logged Tim Reed Better Projection Pays Posts: 5246 From: Northampton, PA Registered: Sep 1999 posted 03-31-2008 02:36 PM                       tick...tick...tick...  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 03-31-2008 07:30 PM                     yea..delete this and goto "Yak" section and put this post in the "video of an insane man.."  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 03-31-2008 07:30 PM                     Bravo! I can see its usefulness in 3-D viewing surface alignment and in multi projector installations like video walls. It'll eliminate all the alignment headache that video walls always have had!!! Excellent job... I think he gets the PHD... And, personally I think it does deserve a thread of its own... its very unique and anyone thats ever set up a video wall knows what I am talking about. Mark  |  IP: Logged Peter Castle Expert Film Handler Posts: 220 From: Wollongong University, NSW ,Australia Registered: Oct 2003 posted 04-01-2008 05:48 PM                     I think it may be jumping the gun a little to see this as a great achievement in projector alignment. That's not what I think they are doing. There's no connection to the projector but the video signal. All that's happening is the image being sent to the projector is being scaled to fit by the computer, leaving all that waste projector power projecting black. Now if only projectors could be adjusted in less than 1 second. . . .  |  IP: Logged Tristan Lane Master Film Handler Posts: 444 From: Nampa, Idaho Registered: Feb 2002 posted 04-01-2008 07:37 PM                     In response to the above comment: It's not just scaling the image, it is compensating for keystoning and is able to track movement of the image surface and atapt in real time. I believe he was trying to demonstrate the accuracy of the alignment system by using a much smaller image surface. I wouldn't play it down too much. I'm sure real-world uses would make sure to utilize as much of the projector as possible.  |  IP: Logged Patrick Dunn Expert Film Handler Posts: 120 From: newark, DE, United states Registered: Aug 2005 posted 04-01-2008 10:25 PM                        quote: Peter Castle I think it may be jumping the gun a little to see this as a great achievement in projector alignment. That's not what I think they are doing. There's no connection to the projector but the video signal. All that's happening is the image being sent to the projector is being scaled to fit by the computer, leaving all that waste projector power projecting black. You wouldn't really have to worry about projection a lot of black if you just have the projector projecting a little bit bigger than the screen. I wasn't thing much about scaling the image as i was keeping it undistorted.  |  IP: Logged

All times are Central (GMT -6:00)

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.