Bad Deinterlacing Artifacts Help for a Beginner

[A Random MarTy]

Hello, everyone ! I'm here because I need to know some info and some help to get rid of some artifacts.

I'm still very new, like very, very new (and not a professional at all learning along the way), and I tried for years to learn AVISynth to address some artifacts. Thankfully, I have help, but it's hard understanding it for me + most of the info is not in my native language, so it's really hard. But I need all the help I can get, because I want to restore as professionally as possible some Shows and Movies that needs them.

For now, I've started with passion projects but with difficult ones : " Spider-Man : The Animated Series " and, of course " Futurama " (HD version).

It seems both of those shows share a similar artifact due to Bad Deinterlacing (of course, wouldn't be funny otherwise), but I wondered if this one could be addressed via AVISynth (or any other software) ?

I'm sharing two clips from both shows highlighting the problem in question (feel free to correct me, of course) :

- Futurama -

0:04 Fry's leg and pillow

0:20 The Ceiling

- Spider-Man : The Animated Series (1994) -

Nearly all the clip


I know Futurama is a constant discussion here, but I wondered if the " HD version " could be restored ? It seems to be less tricky to manage than the DVD's and since I'm French, it's harder to obtain NTSC DVD's anyway.
I've tried some models on chaiNNer but, of course, it seems like a job more fitting for AVISynth.

So, since I really want to make progress on at least Spidey, I thought it was worth a shot asking info that I can relay to the persons helping me along the way. And hoping 2025 means we have made progress to deal with those artifacts, that's why I'm going with the " HD Version " of Futurama. (I think the color banding issues on Fry's bedroom wall can be dealt with, again if you think otherwise let me know ! But my main problem seems to be this Aliasing artifact)
Plus, for the moment, I don't think I can get my hands on better sources (for Spidey that's sure, but I don't see any other good release of Futurama. Most problems seemed fixed on HappyLeeRemaster's version, but upscaled like many years ago so unusable)

I hope I gave all the important information needed, but I'm here as much as possible to provide missing ones.

https://mega.nz/folder/sSdUXIwS#Wa4ZVC--B8ASzTDKoE2spA

[Selur]

About the flickering on the leg of Fry: try SpotLess with blksize=4, truemotion=false, pel=2 masked by an edge mask and QTGMC(InputType=3).
The flickering isn't fully gone but most of it, and the rest probably would need some tweaking of the filters; i.e. increasing temporal smoothing in QTGMC and/or adding SMDegrain with dct=1 (last would make it really slow; too slow_for_fun).
I used that together with YAHR, some LineDarkening and BasicVSR++ (only available through Vapoursynth and requires an NVIDIA cards) on those clips and attached them. (script used) Especially on the 'Spider Man'-clip BasicVSR++ really works wonders.

Side note: filtering the DVDs might be easier, with cartoons there are often not so much details, so the upscaling isn't the problem and machine learning based stuff work fine on such content..

Cu Selur

Ps.: Most of the models that can be used with chainNNer can be used through avs-mlrt/vs-mlrt.

[A Random MarTy]

Thank you so much, that's insane ! It looks completely gone with Spidey (less with Futurama as stated, but it seems workable by tweaking some details)

That's really helping ! I'll see what I can achieve by myself but that's just wonderful ! (No problem with NVIDIA cards on my end, I have a more than decent PC but can't understand the basics of AVISynth, I wish a French video would provide just the tools, but not a big problem). Really, thank you !!

[Selur]

Updated the post with the 'too_slow_for_fun' sample, which seems to fix the flickering.

[A Random MarTy]

Oh, that's even better ! Sadly the details on Fry's underwear seems blurred and mixed together, but I suppose it's another question of tweaking (hoping it's another plugin that causes this), but it definitely seems like it's close !

[Selur]

That blurring was already in the source





and was not caused by the filtering.
It's just more noticeable since the flickering&co is gone and the line darkening increases the contrasts.

Cu Selur

[A Random MarTy]

Ok, I see. So it's a bit of both it seems, the gray line on Fry's eye is present due to compression (I don't remember the name of these specific artifacts though Edit: I think I'm searching for a DeHalo plugin / model to deal with this) and it's interpreted as it is within the final results as a more solid line. Like the thread of Fry's underwear that just gets smudged

But you're right, it needs to be addressed first so that the less things gets misinterpreted, if I'm clear enough, but my bad !

So it's even more good news, a pre clean-up should the trick, but I have to remember specifically what I need (something to do before some sharpening, but even then I think a good custom model should do the heavy lifting)

[Selur]

Moving the line darkening to the end of the filter order might also help.

[A Random MarTy]

Yes, that's what I think too. At the very least, thank you very much, the original script is for Spider-Man, right ? I'm going to see if I have a better luck understanding VapourSynth for the moment. It helps tremendously !

[Selur]

Yeah, unless there is some strange flickering in lines somewhere, Spotless&Co would be total overkill for the 'Spider Man'-clip.

[A Random MarTy]

Ok, thank you ! Noted (I've not encountered the exact same problem at the moment, but at least I know now how to fix this anyway !)