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ministrix
11th September 2007, 10:52
Hello!
Got this sample http://www.megaupload.com/?d=3KHUVBS7 for you guys (meaning girls as well) to chk:) Its a tv clip from '69 so it may be unfixable. The problem is ghosting of her hands when she wavers them. I'm not sure if i should keep it at 29 fps or try 26 fps which is what i guess it was originally shot at. I tried different filters like telecide and field deinterlace (blend=false) but its no good. In some frames it looks like the color of her hand is following her hand when she wavers it around. Any ideas?

davidhorman
11th September 2007, 13:52
I'm not sure if i should keep it at 29 fps or try 26 fps which is what i guess it was originally shot at.

I'm not sure what makes you think that - it looks like 29.97fps interlaced video to me.

I don't think there's been any strange conversion - it's just some very old video shot on very old cameras.

David

ministrix
11th September 2007, 14:29
I thought it was shot for american tv and therefor thought it was 26 fps but im not sure how they did it back then in us. And do u have any suggestions how to remove the ghostings of the hand? Field deinterlace matches up the frames good but still, its ghosting there and thats what i want to remove.

neuron2
11th September 2007, 14:34
American terrestrial NTSC TV is 29.97 fps, not 26 fps.

ministrix
11th September 2007, 14:50
OK. Then i need to stick to ~29 fps. But is there a option to remove those artifacts?

neuron2
11th September 2007, 15:19
It looks like camera motion blur to me and is hardly noticable when played at normal speed. I would leave it alone.

Perhaps someone else has a different take on it.

Joel Cairo
13th September 2007, 03:09
Our original poster has a good eye-- what he's pointing out are (probably needless) DVNR artifacts, that are now burned into the image, and are therefore unfixable. With a lighter corrective touch, or more careful engineering, they'd have been easily avoided.

-Kevin

2Bdecided
13th September 2007, 11:52
Are there DVNR processes that are so harsh? It seems strange that the white areas leave a black after-image. That's more reminiscent of certain tube cameras.

Anyway, you want to be glad you have colour video archive footage from 1969 at all. Lots of UK broadcasting was still B&W then, and much of the archive stuff has been destroyed. :( To see a nice clean fluid video from the 1960s is rare over here! Most of what survives is only on 16mm film telerecordings: B&W, flickery, scratchy, one field only or both fields merged, often with horrible optical sound. Still, some people try to rescue it...

http://www.restoration-team.co.uk/

Cheers,
David.

Joel Cairo
14th September 2007, 07:54
Unfortunately, the answer to your DVNR question is "Yes". I'm not sure which system it is, but I see that type of artifacting a lot. The embossed horizontal bar on the shot change is another giveaway... it's not a residual image from the vintage video camera switcher-- it's from the DVNR processing.

And as for restoration efforts, thank you for noticing-- there are indeed those of us that are trying to do what we can to improve classic television:

http://www.kinescopes.com/livefeed_reviews.html

:)

-Kevin

2Bdecided
14th September 2007, 11:57
Unfortunately, the answer to your DVNR question is "Yes". I'm not sure which system it is, but I see that type of artifacting a lot. The embossed horizontal bar on the shot change is another giveaway... it's not a residual image from the vintage video camera switcher-- it's from the DVNR processing.Obviously I spotted that - that's DVNR?! That's terrible!

And as for restoration efforts, thank you for noticing-- there are indeed those of us that are trying to do what we can to improve classic television:

http://www.kinescopes.com/livefeed_reviews.html
Is that you? I've only seen the download demo, which unfortunately was at 29.97fps progressive 320x240. I'll have to check out the Elvis DVD.

I've seen a lot of the comparable process over here (VidFire) which works well. A poor man's option is to play it through a Philips TV with it's own motion interpolation!

I realise the NTSC source kinescopes are more of (or a different) challenge compared to the PAL telerecordings because you have more fields stored on every second film frame!

Cheers,
David.