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Old 18th January 2018, 15:36   #1  |  Link
a1s2d3f4
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Join Date: Nov 2010
Posts: 72
working to get the most out of SVPFlow (getting rid of smudginess)

(This is posted already on the SVP-team forum, but it's not very active there.)

I have used MVTools for 7 years converting PAL or 24fps videos to 60fps.

I use AVISynth with VirtualDub
My MVTools part of the script would go something like this:

Code:
#currently I have PAL 25fps video as my last operation
num_frames = 12
super = MSuper(pel=2)
backward_vec = MAnalyse(super, overlap = 4, isb = true, search = 3)
forward_vec = MAnalyse(super, overlap = 4, isb = false, search = 3)
v100=MFlowFps(super, backward_vec, forward_vec, num = num_frames * FramerateNumerator(last), den = FramerateDenominator(last))
v200 = ConvertToY8(v100).AssumeFPS(300).ChangeFPS(60)

Now, with SVPFlow, I have:
Code:
num_frames  = 12

super = SVSuper("{pel: 2, gpu: 1}")
vectors     = SVAnalyse(super, "{overlap: 4}")
forward_vec = SVConvert(vectors, false)
backward_vec = SVConvert(vectors, true)
super_mv = MSuper(pel=2, hpad=0, vpad=0) #padding should be zero here!
v100 = MFlowFps(super_mv, backward_vec, forward_vec, num = num_frames * FramerateNumerator(last), den = FramerateDenominator(last))
v200 = ConvertToY8(v100).AssumeFPS(300).ChangeFPS(60)
I can already see the improvement:
mvtools:
https://drive.google.com/file/d/1mX4...ew?usp=sharing
SVPFlow:
https://drive.google.com/file/d/1qdk...ew?usp=sharing

What I am wondering about is can I do something else to further improve the "smudginess"?
I am including the original frames from the 25fps footage between which the interpolation occurs.
I wish there was a way to get the interpolation algorithm to recognize the non-moving background (piano keys) and the moving object - hand.
https://drive.google.com/file/d/12_w...ew?usp=sharing
https://drive.google.com/file/d/1nT3...ew?usp=sharing

Speed is not an issue as I export to a separate file and can let the computer sit overnight if necessary.
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