Problem when converting to High Quality framerate

[hzgg2]

I am trying to convert videos to high quality framerate using "AviSynth MSU Frame Rate Conversion Filter" made by
http://compression.ru/video/frame_rate_conversion/index_en_msu.html

But everytime I try to do that the output video is strange: Sometimes , some motion scene has warp effect or 3D ripple effect (i don't know what it's called but it's something like that).

Was the problem caused by the input video (bad quality?) or was the problem caused by the filter??

I did exaclty what it says: The input video must be in YV12 colorspace.
To convert a video into YV12 colorspace use ConvertToYV12.


The width and the height of the input video must be multiples of 16.
To resize a video use Crop and/or AddBorders.



Code:

AviSource("video.avi")
ConvertToYV12().MSU_FRC(4, "slow")

[Soopafresh]

Common problem. That MSU filter isn't as good as MVtools' rate changer

http://avisynth.org.ru/mvtools/mvtools-v1.10.2.1.zip


AviSource("video.avi")
ConvertToYV12()
source=last
# Assume progressive PAL 25 fps source. Lets try convert it to 50.
backward_vec = source.MVAnalyse(isb = true, truemotion=true, pel=2, idx=1, search=3)
# we use explicit idx for more fast processing and use full search
forward_vec = source.MVAnalyse(isb = false, truemotion=true, pel=2, idx=1, search=3)
cropped = source.crop(4,4,-4,-4) # by half of block size 8
backward_vec2 = cropped.MVAnalyse(isb = true, truemotion=true, pel=2, idx=2, search=3)
forward_vec2 = cropped.MVAnalyse(isb = false, truemotion=true, pel=2, idx=2, search=3)
source.MVFlowFps2(backward_vec,forward_vec,backwar d_vec2,forward_vec2,num=50,idx=1,idx2=2)

[hzgg2]

I tried with MVtools but in motion scenes there are still strange effects like the image is like water.... (warp effect or 3D ripple effect ).

Here's an image.

[jagabo]

The problem is in all motion vector based frame interplators. And it always will be. There is no way for a program to perfectly determine exactly what happened between two frames of video.

Here's another example: https://forum.videohelp.com/topic303037.html#1534640