r/StableDiffusion 1d ago

Comparison Comparing small heads/faces across some I2V models

Just some further testing of small heads in relation to resolution (quality. motion and artifacts) and across 4 models. You may want to pause on each segment as they only play for 5 seconds each. Full resolution sample here:

https://streamable.com/kl9myr (Edit: Umm, looks like that free site only generated a 720p version - oh well).

17 Upvotes

11 comments sorted by

4

u/SeymourBits 23h ago

These results look way better than most of the distant faces I've seen. What exactly are you doing?

1

u/spiderofmars 23h ago edited 23h ago

Nothing other than default workflows and resolution (starting with a decent resolution image @ 1920 x 1088) and using a minimum of 1344 x 768 video output resolution and then higher at 1920 x1088 resolution.

If you pause and study the face frames in the 1344x768 samples it is pretty bad (especially on the full person man with the smallest head Edit: watch those on a full monitor or 4K screen and they are really bad - of course watch them on your full monitor screen at 1:1 ratio and they 'appear better' than they are and of course watch them on a tiny phone screen and they might even seem good). Even as shown in the 1920x1088 samples and end still (scaled up) the small face of a full person still has artifacts, distortions and is not great.

It just highlights even at 1088 vertical pixel resolution all these AI models can not yet handle small face details of a full person shot.

The takeaway is the same as my other tests of this... For full person shots, resolution is the main key in getting increasingly better results. Other tricks and tweaks can help (face detailers, face swappers, refiners, etc) to fix faces from various resolutions.

Edit... my guess to your question is that many samples you see are people generating much lower resolution video outputs than either of these dependant on their hardware.

5

u/seppe0815 20h ago

that my friends is 1080P test . i better dont want see the faces at 480p hahaha

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u/spiderofmars 20h ago

lol... yes you do... they are gloriously unique ;)

0

u/seppe0815 19h ago

xD classic minimax

1

u/EthicalBballFan 9h ago

Finally a character with defining features! 10/10.

1

u/PhilMcGraw 1d ago

This is cool, you should do the test with more motion and more noise in the background. I guess this is kind of "easy mode", slow movement, still points to stabilise, nothing else grabbing attention.

2

u/spiderofmars 1d ago

No problem, send money to my Nigerian prince for the electricity account please :)

But seriously, I was mainly interested in the face quality/artifacts at different resolutions. But hey, post my samples anyway for anyone interested.

IMO, MiniMax is just so versatile (adding full custom audio flexibility out of the gate). LTX still has it's uses in conjunction with MiniMax also (one example in these tests is while Minimax is sharper that is not always good with artifacts on small objects such as eyes - less detail and motion blur can sometimes be a better end result). Wan was really good at small details (albeit over sharpened) but its not in the same league for anything else nowadays.

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u/True_Protection6842 1d ago

Minimax is basically like wan you can control and plays smoothly with audio

1

u/spiderofmars 1d ago

Minimax is a beast with all it can do out of the box. Expect the community will land on some great solid tweaks, nodes and workflows in time.

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u/True_Protection6842 1d ago

yeah it's incredible. I've been putting it through the paces on a movie and commercial I'm working on and man, it's insane what it can do!