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skalie

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Posted on Friday, July 30, 2004 - 7:05 pm:   Edit PostDelete PostView Post/Check IPPrint Post

As you might know NTSC movies often do not play on televisions in Europe. So i wonder if its possible to convert NTSC 3d movies to PAL.
Is there an easy way to do this?
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Anonymous

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Posted on Friday, July 30, 2004 - 10:17 pm:   Edit PostDelete PostView Post/Check IPPrint Post

The result will be always very pure. Play on computer, not on TV.
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Puppet Kite Kid

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Posted on Sunday, August 01, 2004 - 6:54 am:   Edit PostDelete PostView Post/Check IPPrint Post

I can only think of one reason why you would want to do that, and that is if you had a scan rate doubler for a PAL 50 TV to eliminate flicker. Since I don't even know if one exists, that might be a shot in the dark :-)
As far as the conversion goes, whatever you do, do _not_ use existing methods of converting 2D NTSC to PAL, since that will stagger the fields into a garbled mess. It could be done, however, by deinterlacing the 3D NTSC video, then applying _identical_ conversion techniques to each eye's view, then reinterlacing the outcome. I won't go into details, here, but just look up "NTSC to PAL conversion" on Google to find existing methods, then remember that you have to somehow apply those techniques to _both_ eye's view, identically.
Since I don't have any professional motion interpolation equipment, I would use Adobe After Effects and use motion detection and frame blending to blend every 4th and 5th frame of each eye's view (or something like that :-), but you could probably come up with a freeware solution with AviSynth and a fancy deinterlacing plugin or two :-)
Good luck...

P. K. Kid
Non-commercial stereoscopic 3D video:
(All G-Rated) http://www.puppetkites.net

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