Restoring NTSC (29.97 or 24?), released in PAL (25) (reverse telecine?)

[videokassette]

Hi, wondering if anyone can help me.

I am trying to restore a movie back to its original format, it was made for US broadcast but only released on DVD in PAL format. So I need to go from 50i to what is assume is 29.97p.

The film was shot twice, in english spoken language and german spoken language, so I can not simply dub the english audio over the german video unfortunately. The german version of the film is in perfect 25p, I assume the english version was shot in 29.97p for US broadcast as opposed to 24p - but could be wrong. Perhaps it is more complicated and it was in fact shot in 24p, telecine'd to NTSC for broadcast, and then maybe they made the PAL release using the NTSC version instead of the 24p source.

When de-interlacing there is a lot of ghosting, the fields are all mixed up as far as I understand.

I have spent a long time testing different suggestions posted on the forum but with little luck.

I am using avisynth with tfm() & tdecimate() but I just can't get my head around which flags are needed, or if it is even possible at all.
I have briefly tested with SelectEvery() too but struggling to get anywhere

Is it too messed up to restore?

Here is a 25 second clip from the film: https://we.tl/t-zGCTH5fjV8
I have chosen this scene as when the camera pans you can see the ghosting fairly well on the letters on the wall in the background. Likewise when the papers are falling ~ 14 seconds in.

Thanks in advance for any advice anyone can give!

[LigH.de]

Inverting norm conversion with blending can be hard; it might be possible with AviSynth and Srestore.

As you seem to be German, you may be interested in exotisches Interlacing by scharfis_brain to learn about the reasons and technique; StainlessS on the doom9 forum created an English translation of this guide.

[davexnet]

instead of tfm()/tdecimate(), try qtgmc(),srestore()

[manono]

I assume the english version was shot in 29.97p for US broadcast as opposed to 24p - but could be wrong.

You're wrong. Try davexnet's suggestion. It's not perfect but way better than what you have now.

The german version of the film is in perfect 25p...

In what sense is this perfect as it's a field-blended mess?

[videokassette]

Inverting norm conversion with blending can be hard; it might be possible with AviSynth and Srestore.

As you seem to be German, you may be interested in exotisches Interlacing by scharfis_brain to learn about the reasons and technique; StainlessS on the doom9 forum created an English translation of this guide.

Thanks for linking this site, its very in depth! I will have a read through and try to make sense of it

[videokassette]

instead of tfm()/tdecimate(), try qtgmc(),srestore()

Thank you for this suggestion, it has drastically improved the results. There is still some intermittent ghosting but this is the best I have got so far! Many thanks

[videokassette]

The german version of the film is in perfect 25p...

In what sense is this perfect as it's a field-blended mess?

The german version is different to the one I am trying to restore, it was for german broadcast at 25p, so the PAL DVD is perfectly fine. No field blends or ghosting etc. It is the english version I am having trouble with

[abolibibelot]

8th Nov 2021 23:39
instead of tfm()/tdecimate(), try qtgmc(),srestore()

9th Nov 2021 02:48
Thank you for this suggestion, it has drastically improved the results. There is still some intermittent ghosting but this is the best I have got so far!

You managed to set up QTGMC properly in only 3 hours ? Das ist wunderbar...