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View Full Version : Field blend removal ends up with motion judder


CaptainGotoSV2
15th December 2021, 01:12
G'day!

I'm typing this on my phone at work and don't have my laptop nearby but I'll be able to go into some more detail with AVISynth and provide examples later on, probably this evening AEST.

The source videos are the R4 Madman/Manga UK PAL DVDs of Patlabor 1 & 2, and the video for both are letterboxed non-anamorphic 4:.3. I'm having nothing but trouble with removing the vast majority of the field blending (and ghosting), ending up with motion judder, with most of field blended frames and ghosting left intact. I've tried AnimeIVTC and QTGMC both on their own and with Srestore but they haven't worked all that well so far.

Both source videos are quite a mess compared to the rest of my older field blended R4 PAL anime DVDs, and I wouldn't be surprised if the video masters provided to Madman for both had ended up going from telecined NTSC > PAL video > NTSC video, as I've heard has happened with some older titles in the early days of DVD. I might be mistaken but I think I remember reading the original The Heroic Legend of Arislan series of movies had fallen victim to similar laziness when Central Park Media released them on R1 DVD.

If you're wondering why I'm bothering with these inferior DVDs and hadn't gotten myself a copy of the movie remasters on DVD ages ago, let alone the BD releases, it's because 1: neither of the remasters have been made available here on R4 DVD and Region B BD (I'm not aware of any Region B release being made available in English either) and 2: the original Manga UK English dubs of the movies are surprisingly (given Manga's history) amongst the best ever produced in English for anime imo, but I'm assuming the reasons why they've not been made available for later releases are either due to some unknown licencing issue, questions over what company owns the dub copyrights, or as is the case with Manga UK's dub of Patlabor 2 there are technical hurdles to jump with some heavy cleaning up of the dub as-is required, or having to completely re-engineer and remix the dub from scratch (if the original material still exists at all).

As stated above I'll provide video examples as soon as I'm near my laptop.

Cheers!

coolgit
15th December 2021, 10:39
It looks like you are describing the same problem i was having with my dvds. Need motion example clip. I believe your fields order and quality are screwed.

CaptainGotoSV2
16th December 2021, 23:58
It looks like you are describing the same problem i was having with my dvds. Need motion example clip. I believe your fields order and quality are screwed.

Here are the example clips:

1. M2V original

https://drive.google.com/file/d/1rP2Jybrfpg3dxtRQ8JJMJakZEfzoiBDc/view?usp=sharing

2. h264 encode with AnimeIVTC

https://drive.google.com/file/d/1rP2Jybrfpg3dxtRQ8JJMJakZEfzoiBDc/view?usp=sharing

The script for the h264 encode are as follows:

LoadPlugin("C:\Users\nickf\Downloads\MeGUI-2913-32\tools\dgindex\DGDecode.dll")
DGDecode_mpeg2source("C:\Users\nickf\Videos\PATLABOR_1\VIDEO_TS\VTS_01_1.d2v", info=3)
LoadPlugin("C:\Users\nickf\Downloads\MeGUI-2913-32\tools\avisynth_plugin\ColorMatrix.dll")
ColorMatrix(hints=true, threads=0)
AnimeIVTC(mode=2, bbob=1, normconv=true)
crop(22, 58, -2, -58)

I did have AssumeTFF() in the script originally because I had thought the field order was messed up too, but the finished encode shows no difference.

I should note that I've figured out how to fix this problem with AnimeIVTC with Patlabor 2, turns out it wasn't as messed up as I had thought. The dub itself is a different story on a technical level, but that's not what I'm here for.

Note for others who read this - providing your field-blended PAL source isn't really screwed up, the following should restore your video back to 24fps with no major problems:

AnimeIVTC(mode=2, bbob=1, normconv=true)