Intra-field interlace artifacts

[resonator79]

Hello experts! ;)
I usually get things done by merely browsing the forums and testing on my own, but for the first time in years I've come across a video that's almost impossible to cleanly IVTC.
It seems as if there are interlacing artifacts within the fields. Sort of a "double interlace", for the lack of a better term. I really don't know what to search for either, maybe that's why I can't find anything.

Anyway, if you'd like to help me or have look at it, here's a clip (AVI, ~23mb, 4sek, Lagarith) :
http://artistdead.com/clips/intrafield_test_laga.avi

Thank you!

[creaothceann]

Seems like standard 3:2 pulldown?

AVISource("intrafield_test_laga.avi")
ConvertToYUY2
AssumeBFF
Telecide(guide=1, blend=true)
Decimate

EDIT: There's also a bit of rainbowing, e.g. at frame 49...

[resonator79]

The clip I chose was a bad example, you can hardly make out what I'm talking about. Sorry about that.
Here's another one:
http://artistdead.com/clips/intrafield_test_laga_2.avi

[creaothceann]

You mean the dotcrawling? Try this:

AVISource("00b.avi")
AssumeTFF
v1 = Telecide(guide=1, blend=true).Decimate.Crop(26, 116, -30, -104)
v2 = Checkmate.Telecide(guide=1, blend=true).Decimate.Crop(26, 116, -30, -104)
Show(v1, v2)

(Show is featured here (http://forum.doom9.org/showthread.php?t=168138))

[resonator79]

That's a huge improvement, thank you!