How to best de-interlace DV-AVI's

[Huge]

From both a speed and a quality perspective what's the best way to de-interlace DV Camera video?

AVISynth and VerticalReduceBy2
Mpeg2dec's smartdeinterlace
Decomb and fielddeinterlace
VirtualDub's own deinterlace filters?

I'm not really happy with any of these as I can still see visual aftifacts but what's the supposed best way to do this?

[Guest]

You've tried them all. The best is the one you are happiest with, given the requirements of your situation, which you have told us nothing about. :)

There is no perfect deinterlacer. You're always going to have some visible effects, whether it is blurring, minor combing coming through, stairstepping, etc. Only you can decide which one you find least objectionable.

[trbarry]

For pure video source you might also try:

GreedyHMA(1,0,0,0,1,0,0,0)
or
GreedyHMA(0,0,0,0,1,0,0,0)

- Tom

[Huge]

I'm converting home DV movies and putting them on CD in either DivX5 or occasionally as MPEG VCD's or DVD's.

I think FieldDeinterlace(full=true,blend=false,dthreshold=0) gives the best result that I can see but is slow.

Any comments on these options when DV is used as input?

[hakko504]

For DVD and SVCD you don't need to de-interlace, just make sure the MPEG encoder is set to interlaced mode instead of progressive, that you have the right field order, and that any resizing is made in interlaced mode.

[DDogg]

Huge, take a look at:

http://www.dynapel.com

If this is run before encoding operations much of the jitter is gone and so the encoding does not need to deal with it. They have done a tremendous job on this soft. I just wish there was a native avisynth filter that did the equivalent. Whatever they have done is pure magic.

[Huge]

How odd.

I just bought SteadyHand DV from Dynapel today. I had the demo on my machine for about a full day before I realised that this is one of the most useful tools I've ever seen for home-movie makers. I have a very small complaint in that the converted quality is not 'quite' as good as the original but I guess that's because they need to resize the frame to make it the same as the original.

Which product were you referring to though as they have two, SteadyHand DV and MotionPerfect 4.2?

[zambelli]

Huge,
I converted some DV stuff into DivX just a month ago, and I used Donald Graft's SmartDeinterlacer plugin for VirtualDub to do it. The results were very satisfactory.
As someone has already suggested, you might want to try playing around with GreedyHMA too.

[jdobbs]

I've been very pleased with GreedyHMA -- I've noticed that my picture quality seems to increase when I use Levels(30,1,255,0,255) before deinterlacing (from a Sony camera).

[igor140]

How do you load your source into avisynth?

I found that if you use the directshow-interface it is almost impossible to get rid of all interlacing artifacts.
Loading your source as avisource (mainconcept codec installed, source has to be type2) any of your abovementioned methods will do a beautiful job. Best quality in my opinion with the latest smart deinterlacer beta using bicubic interpolation.