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Re: How to deinterlace interlaced video in vegas

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Laszlo Kovacs
Re: How to deinterlace interlaced video in vegas
on Feb 1, 2008 at 5:11:16 pm


Use a camcorder that's capable of recording progressive, then you'll have nothing to do with interlacing.

Once you shoot with a camera an interlaced video, the camcorder does not store the picture of a frame and store it interlaced, instead it makes expositions at every half frames,
so the half frames contain images cpatured at different times.
Assuming it's about PAL (standard def.), you can think of it like taking 50 fps at a lower resolution (720*288). In this case deinterlacing means to somhow interpolate the 2 frames, and drop one of them.

I think (and I'm quite sure at this point), it's better not to deinterlace. Of course you can do it, but if you do so, you will LOOSE some MOTION INFORMATION.
That's why looking at an interlaced and at a deinterlaced video on a CRT TV, the interlaced will have much smoother movements. (Especially panning and horizontal moving.)
This is my EXPERIENCE, and this is why I recommend against deinterlacing, unless there's a really good reason to do so.

I don't say interlacing is a good idea today.
The best were 50 or 60 fps full frame progressive with full HD resolution :)



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