Need help deinterlacing this video

[Mounir]

I wanna know how i can deinterlace this video.Thus far i tried yadiff and field bob (normal & smooth) in Vdub but the results are bad imo.

Sample (16MB, mpeg2 ntsc 704x480, TFF, source: vhs)
http://www.sendspace.com/file/9ny3oz

Focus on frames 78, 99, 457 to 505 for instance to have an idea of the mess.The lines are somewhat mixed i don't know but one thing is for certain that's the best i could extract of this tape.No re capture planned whatsoever.

Inputs welcome

[2Bdecided]

It looks like standard 3-2 pulldown with some capturing problems on top (i.e. one field shifted!).

You need to IVTC it.

telecide().decimate() is mostly fine where the video is fine. Newer methods (or tweaking of any one of the various IVTC methods) might be able to cope better with the "damaged" parts.

Hope this helps.

Cheers,
David.

[IanB]

As always, first analyse the pattern present in your video :-...Source(...)
AssumeTFF() # or AssumeBFF() # Pick the one for your source.
SeparateFields()Load into VDub and step along the video observing the pattern.

Once you think you have a pattern, prove it by predicting what should happen next, then look at the next frame to see if you were right.

With a recognised pattern, use the right tool for the job.