Any good antialiasing script for this source?

[themon-master]

Hello!, I'm currently trying to restore these old episodes from an anime series and the only issue I can't fix is the aliasing.
(Take a look at the background)

[Attachment 93031 - Click to enlarge]
I can't seem to find a good antialiasing script that fully fixes that issue.
Can anyone help me out here? Thank you!
Note: The native resolution of the source is 960x540 and to resize is by using descale

debicubic(c=1, 960, 540)

(Another Note: I'm an AviSynth user)
SAMPLE FILE:https://drive.google.com/file/d/1kQSrx1-LQ7s_tavuYq7QOrzJ_3CNHBlc/view?usp=sharing

[pandy]

I recall quite decent results with tricks like this: https://forum.doom9.org/showpost.php?p=1560075&postcount=3 also pixelresize algorithms works decently with trick like this https://forum.videohelp.com/threads/377096-Good-antialiasing-in-avisynth#post2433948 - checked also my old scripts and perhaps something like this will work for you:

X9=Yadif(TurnLeft(VV),2,0)
YY9=Yadif(TurnLeft(VV),2,1)
VV9=TurnRight(Merge(XX9,YY9,0.5))

Realized that this is same code as in first link so

Merge(Yadif(2,0),Yadif(2,1),0.5)

but you can try to rotate and combine both

[Selur]

Only Avisynth,.. if ml-based filters are an option using something like

• tfm()
• descale/resize to 960x540 (i.e. with debicubic)
• avs-mlrt some model from https://openmodeldb.info i.e. https://openmodeldb.info/models/2x-BIGOLDIES might do the trick
• adjust resolution if the model resized too much or not enough

I doubt conventional filtering will so something like the images below.
(Actually showing separated cables in the middle. I didn't use AviSynth for those images, but some of the ml-models should produce similar outputs)

Cu Selur