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Old 14th June 2006, 11:14   #201  |  Link
rig_veda
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I'd like to address a big THANK YOU to Fizick and Manao for bringing the mvtools to where they are now!
Very impressive things can be done with motion-adaptive denoising, especially in animation, as I lately found out. It's possible to use temporal denoisers at places where I would never have believed it possible without artifacts before.

Lately the line
Code:
interleave(last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 7, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 6, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 5, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 4, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 3, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 2, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 1, idx = 1), idx=1), last, last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 1, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 2, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 3, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 4, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 5, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 6, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 7, idx = 1), idx=1)).TTempSmooth(maxr=7,lthresh=3,cthresh=4,strength=5).selectevery(15,7)
has more or less become my only denoiser for DVDs with low noise level. It might look like a little overkill to use 7 frames backwards and forwards, but it mostly has proven worth it if quality is more important than speed. Cause its slooow.. ^^;

On the other hand, if the movie is pretty noisy, like Ghibli's Porko Rosso, i needed to apply much more massive filtering to the static and slow motion scenes (which i defined manually via ReplaceFrames):
Code:
#denoise fast pans
ReplaceFramesSimple(last, last.FFT3DFilter(), filename="PorcoRosso_denoise_FFT3D.txt")
#TTempSmooth_middle_short - denoise slow pans
ReplaceFramesSimple(last, interleave(last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 1, idx = 1), idx=1), last, last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 1, idx = 1), idx=1)).TTempSmooth(maxr=1,lthresh=10,cthresh=10,strength=5).selectevery(3,1), filename="PorcoRosso_denoise_TTempSmooth_middle_short.txt")
#TTempSmooth_lite_wide - denoise intro
ReplaceFramesSimple(last, interleave(last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 7, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 6, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 5, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 4, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 3, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 2, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = false, pel = 2, search = 3, truemotion=true, delta = 1, idx = 1), idx=1), last, last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 1, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 2, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 3, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 4, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 5, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 6, idx = 1), idx=1), last.MVCompensate(MVAnalyse(isb = true, pel = 2, search = 3, truemotion=true, delta = 7, idx = 1), idx=1)).TTempSmooth(maxr=7,lthresh=4,cthresh=5,strength=5).selectevery(15,7), filename="PorcoRosso_denoise_TTempSmooth_lite_wide.txt")
#TTempSmooth_middle_wide - denoise still frames
ReplaceFramesSimple(last, last.TTempSmooth(maxr=7,lthresh=10,cthresh=10,strength=5), filename="PorcoRosso_denoise_TTempSmooth_middle_wide.txt")
with FFT3DFilter doing the problematic high-motion/low-contrast and fade scenes and mvcompensate+ttempsmooth doing anything else.

Motion compensation worked well in most cases where a texture with a good mount of structure was moved not too fast. Too little detail, too little contrast or to large movements kind make it difficult for the mvtools, and it also has now way of recognising a uniform change in brigthness.. But after all it's supposed to do motion compensation, not fading compensation.

Speaking of which - does anybody think something like a "fading compensation" can be done, in theory? It kind of seems to resemble mc, but with the vectors moving more or less uniformly through the YUV space.. or not? o_O
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Old 14th June 2006, 17:25   #202  |  Link
Fizick
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Quote:
Originally Posted by rig_veda
...quality is more important than speed. Cause its slooow.. ^^;
You can easy make your "long line" more slower with new overlap mode in MVTools v.1.3

But generally temporal radius=2 is very good (and radius=1 is quite good for speed).
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Old 14th June 2006, 17:28   #203  |  Link
Fizick
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Fading compensation?
Deflick the image, remember deflick correction values,
analyze and compensate motion of deflicked clip, denoise it,
and revert deflick changes?

It is not MVTools question, of course.
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Old 14th June 2006, 17:34   #204  |  Link
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Quote:
Originally Posted by Fizick
...
try convert to 30fps with Depan (interleave with offset=0.5, see its doc).
That would be with something like this:

Code:
i=last
data=DePanEstimate(i,range=1,trust=5)
f=DePan(i,data,offset=0.5)
b=DePan(i,data,offset=-0.5)
Interleave(f,i,b)
SelectEvery(...)
, right? What should I put in the SelectEvery line?
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Old 14th June 2006, 19:36   #205  |  Link
rig_veda
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Quote:
Originally Posted by Fizick
You can easy make your "long line" more slower with new overlap mode in MVTools v.1.3
That's definitely what I'll do when it's released.

Quote:
Originally Posted by Fizick
Fading compensation?
Deflick the image, remember deflick correction values,
analyze and compensate motion of deflicked clip, denoise it,
and revert deflick changes?

It is not MVTools question, of course.
Hm, I'll give that some thougt. Sounds like quite a task for my poor brain to put together.
The reason I asked about it was because it hit me as the next best thing to try to improve with my filter chain, but also because i was wondering whether mvtools' vector calculations (especially the truemotion concept) couldn't be (ab)used to do an area based brightness compensation. Anyway, i'm off to read deflick's manual.
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Old 15th June 2006, 05:56   #206  |  Link
Fizick
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rig_veda,
double mistake
1) 1.3 is released.
2) defading is not implemented.
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Old 20th June 2006, 10:01   #207  |  Link
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Is there any way to save motion vectors to file and reuse them?
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Old 20th June 2006, 16:12   #208  |  Link
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No, only save.
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Old 20th June 2006, 17:27   #209  |  Link
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Quote:
Originally Posted by Fizick
No, only save.
You're saying it is possible to save motion vectors (how?), but you can't use it?
It could be good for speed up repeated processing.
R.
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Old 20th June 2006, 20:10   #210  |  Link
Fizick
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Read a doc about vectors saving (outfile). It is in beta stage.
But reading is not implemented. And I have no plan to do it now.
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Old 20th June 2006, 21:33   #211  |  Link
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I have a feature request

Is it possible to implement such a function:

function amount_of_motion_of_current_frame(clip clip, clip vectors)
{
return float
}

or even better:

function current_frame_is_part_of_fluent_sequence(clip clip, clip vectors, int some_thresholds)
{
return bool
}

I need functions that
- describe the amount of motion (length of vectors)
- return true, if a sequence of frames is consisting of individual frames (without duplicates (like 3:2 or 2:2 pulldown) or blending)
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Old 20th June 2006, 22:57   #212  |  Link
Fizick
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Seems, it is not possible in Avisynth plugins.
Use mvmask with additional conditional functions.
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Old 20th June 2006, 23:36   #213  |  Link
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Quote:
Seems, it is not possible in Avisynth plugins.
What do you mean is not possible? returning a bool or a number?
of course it is possible, but it needs to be a function for the conditional environment.
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Old 21st June 2006, 16:56   #214  |  Link
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Do you know al least one such plugin, which return not clip but float or boolean?
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Old 21st June 2006, 19:41   #215  |  Link
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I think Clouded made in his "Motion"-Plugin such functions.
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Old 21st June 2006, 20:50   #216  |  Link
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Quote:
Originally Posted by Fizick
Do you know al least one such plugin, which return not clip but float or boolean?
eg.: the functions averageluma() (see AVS documentation)
or iscombed() from neuron2's Decomb.dll

of course both functions are for the conditional environment, only.
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Old 22nd June 2006, 21:05   #217  |  Link
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Of course, I know abot averageluma.
I suggested to you use Averageluma(MVMask(...)).
But I did not know about iscombed!
Thanks for poit to it. Therefore, it is possible to implement

function amount_of_motion_of_current_frame(clip clip, clip vectors)
{
return float
}

as MVMaskConditional...

But function current_frame_is_part_of_fluent_sequence is probably not related to MVTools. Maybe to DepanScenes ?
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Old 23rd June 2006, 00:49   #218  |  Link
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I think, that it will be related to mvtools, cause I even want to know whether there is motion like talking head etc.

Depan won't catch that... (doesn't it?)

anyways, implement it the way you like and I'll see, whether it works or not
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Old 23rd June 2006, 14:59   #219  |  Link
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Why not simple YDifferenceFromPrevious (clip) ?
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Old 24th June 2006, 00:53   #220  |  Link
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Why is it that when ever I try to use MVflowfps or MVflowfps2 I get an
Quote:
Evaluate:System Exception - Access violation
error.

I am using Alpha 3 and MVtools version 1.3. I thought everything had been cleared up with this in this last release.

By the Way here is my script:

Quote:
DgDecode_mpeg2source("C:\Documents and Settings\Merlin\Desktop\Movies\USA Parkour\usa.parkour[1].d2v").KillAudio()
MVFlowfps2(num=25, den=1)
Thanks for any help in advance.
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Last edited by Adub; 24th June 2006 at 20:35.
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