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Post #202137

Author
Grinder
Parent topic
Some advise needed on NTSC > PAL (IVTC)
Link to post in topic
https://originaltrilogy.com/post/id/202137/action/topic#202137
Date created
17-Apr-2006, 4:49 PM
I'm doing a transfer of two NTSC LD's (Van Morrison and Blade Runner). And have found out how annoying the format is. As a complete noob on the field of NTSC, I just started working on it, without doing any research. I noticed the last two of every 5 frames had interlace problems, so I designed an AVS script to get 4 good frames out of every 5 NTSC frames:

separatefields
selectevery(10,0,1,2,3,4,5,6,9)
weave


And that worked perfectly, but only for short pieces, because apparently those groups of 5 frames aren't consistent throughout a 2 hour movie. After reading ADM's tutorial I discovered what I had been trying to do is known as IVTC. I let GordianKnot spit out an IVTC script, which comes down to:

LoadPlugin("D:\PROGRA~1\GORDIA~1\DGMPGDec\DGDecode.dll")
mpeg2source("E:\Van Morrison\s1.d2v")
Telecide(order=1,guide=1).Decimate()


And added this to make it PAL:

Lanczos4Resize(720,576)
assumefps(25,1,true)


Now, the IVTC script does a pretty good job, but there are still some frames here and there that have interlace problems. Is there a better (flawless) way to IVTC? Or is this as good as it gets?