De-interlace advice

[puredrifting]

Hi all:

I am finishing up an edit for a project that was shot on two DVX-100a camcorders. Mini DV obviously. One was shot 30p and it appears that the second angle was shot interlaced. Cutting between the two looks rather strange as one angle has the softer progressive look from the 30p, while the other angle looks "live".

I want to de-interlace the interlaced camera angle to get the clips to match better. When I apply FCP's de-interlace filter, the overall look is closer but I notice pretty nasty aliasing with stair-stepping. Didn't there used to be a trick with duplicating the video track, then applying the de-interlace filter to both, one with upper field order first, then one with lower, then combining them somehow? Is this ringing a bell? Are there other, better ways to de-interlace without going out to Compressor? This show has a ton of clips and everything is already cut so I would rather not have to take all of the clips out of FCP, if possible. Any advice for me? Someone mentioned that DVDSP has a de-interlace feature so in theory, when the client authors the DVD, he could de-interlace? Would that mess up the 30p clips though since they are already de-interlaced?

G5 Dual 2.3
4GB RAM
FCP 5.1.4
QT 7.2
DV material
Final output DVD

Thanks,

Dan

 

[electricpig]

Try the 'Convert' option in the FileIn in Shake for a top quality, multi option de-interlace.

 

[puredrifting]

Hi Electric:

If I owned Shake, I would be all over that. But I don't ;-(

I located some different de-interlace recipes and have found one that is doing a decent job. It doesn't look perfect but it matches the other camera's 30p look pretty well.

Duplicate layer in FCP. Apply 30% opacity to upper layer, apply deinterlace with lower field dominance to lower. Sort of a fake progressive. It works well for this purpose and the two cameras, with some color correction match pretty well now.

Thanks for the advice.

Dan