The Name Of The Rose : IVTC or Deinterlace ?

[iparout]

Hi there.

I have The Name Of The Rose on DVD and, suprisingly enough, although it's Region 2, the stream is NTSC at 29.970 fps, 4:3 and Interlaced (at least that's what DVD2AVI says).

I have also noticed that the video is slightly interlaced so I used Field Deinterlace. The problem was fixed, however I was wondering if anyone who has experience with this movie would suggest doing IVTC rather than Field Deinterlacing.

I have zero experience with NTSC material, thus the question may sound naive and stupid for the experts of this forum. :)

Thanks in advance...

[manono]

Hi-

There are plenty of releases that are both R2 and NTSC. Japan is both R2 and NTSC. In addition, there are Hong Kong pirated releases, that might say R2 on the cover but are really R0 and not region protected. And they might be NTSC also. If I had to guess, I'd say you have a pirated Hong Kong version of the movie as the Japanese ones are quite expensive.

Anyway-make your .d2v with No Field Operation. Open it in GKnot and scroll to some place where there's movement. Then advance frame by frame. If you see 2 out of every 5 frames interlaced and the rest progressive (not interlaced), then it has been telecined, and you can use IVTC. If every frame is interlaced, then it was created as interlaced 29.97fps, and you can only deinterlace. If you see some other pattern, then maybe you have problems. Report here what it is.

[iparout]

I have found out that in some hi-motion scenes (i.e. when there are flames) all frames are Interlaced and there are other motion sequences where either 2, 3 or 4 frames are Interlaced.

I think I should De-Interlace and not IVTC byt I am not sure. I have tried both as a test and both of them yield similar results (they both remove the interlaced frames).

[manono]

Hi iparout-

Is this the movie?

http://us.imdb.com/Title?0091605

Since there's only an official PAL version (although IMDB has been known to be wrong), then I'm more strongly convinced that it's pirated. I don't care about that, but it would explain lousy telecining. First check to see if the interlaced, non-interlaced pattern works in a pattern of 6 instead of 5. There's a good chance it was telecined off of the PAL 25fps. If so, then this should work better:

Telecide(guide=3)
Decimate(6)

That will make it closer to the original frame rate, and may prevent jerkiness. Otherwise, what you did already, or this will work fine.

Telecide(guide=1)
Decimate(5)

You want to IVTC it if possible because you'll take the frame rate down, and therefore you'll have better quality for the same file size than if you keep it at 29.97fps and just deinterlace it. Unlike PAL movies, which are 25fps whether progressive or interlaced, NTSC interlaced is 29.97fps, and IVTC'd back to the original frame rate makes it 24fps (or sometimes with PAL to NTSC conversions, 25fps). The reason that both ways got rid of the interlacing is because the Telecide-Decimate combination also has a deinterlacer to deinterlace any interlaced frames that get through Telecide. Since you've done some parts of it as a test already, check very carefully to see if you notice any jerkiness in it. If not, then I'd recommend sticking with IVTC, but with either Decimate(5) or Decimate(6), depending on the repeating patterns. Based on what you said about the repeating patterns, it was badly telecined off of a Film source. Too bad your first time with an NTSC movie is a difficult one. I see that kind of thing all the time, and they're no fun to work with. Good Luck.

[iparout]

First of all, thanks a lot for putting time in helping me out..

Unfortunately, the DVD is not the one that appears in imdb (the cover is different) and I doubt that it's a pirated movie cause I have checked 3 video clubs and they all have the same version, so I guess that's the only version of the movie that is imported to Greece (where i live).

Unfortunately, I can't check for jerkiness in the IVTCed Divx cause I used SelectRangeEvery(2800,14) to create the sample file, thus the scenes doesn't stay on screen long enough for me to check for jerkiness...

I'll just stick to the Deinterlacing method for now cause I've been experimenting with this movie for hours now and I'm too bored to continue... ;) lol

Maybe within the week I'll try using IVTC for the whole movie too and I'll let you know...

Once again, thank you very much for your help.

[jggimi]

I recommend you drop the "selectevery" from your .avs script, and instead, use dvd2avi to select a short scene with movement in it.

Use the "[" and "]" buttons to select the scene, save a test.d2v file, then examine an .avs pointing to the .d2v file. It's easy to do that in virtual dub using the right arrow key.

You'll want to do it this way, rather than the way you've chosen, because you want to confirm whether it's a standard telecine, fully interlaced, a pal->ntsc conversion, or some other type of non-standard telecine.

It will be easier to count frames when you have more than 14 of them.

[iparout]

Just to let you know, I did an IVTC encoding of a complete scene and I noticed some minor jerkiness on playback... Thus, I'll just stick with the de-interlace method...