Ghosting Issue/Frame Blending

[hizzy7]

Hi,

I have a DVD made from a TV recording in China. The picture quality is not too bad, except for when people move quickly. lol! Here are some screen caps:



I am dying to see this movie look better than this. I have some experience with virtual dub, and very little experience with avisynth. I mostly work in adobe for my video editing/improvement needs. I am here to solicit help of the gurus here, and pay for your help. I would be happy to upload the film in your preferred format, and will pay to learn how to fix this kind of thing (if it is indeed fixable). I am also happy to pay a guru to fix this for me. Please send me a message stating your terms, and lets see if we can get this fixed up.

many thanks,

hizzy

[hizzy7]

Here's another screen cap

[jagabo]

There are several possible causes of the problem you are seeing. There are some possible fixes using AviSynth, but not VirtualDub. You need to upload a video sample for it to be diagnosed. Use DgIndex or Mpg2Cut2 to demux a short segment that shows the problem, then upload it here (up to 100 MB is allowed).

In DgIndex: mark in, mark out, then select File -> Save Project and Demux Video. Upload the M2V file.

In Mpg2Cut2: mark in, mark out, File -> Save This Clip. Upload the MPG file.

[budwzr]

Um... yes... I can do it for one billion U.S. Doolars.

[hizzy7]

Hi,

I followed your instructions. Here is a link to the clip:

http://files.videohelp.com/u/183506/VTS_01_1.MPG

Thank you for your help! Mpg2cut2 is a helpful program!!!

[hizzy7]

Um... yes... I can do it for one billion U.S. Doolars.

I`m not that rich, but I would be happy to compensate you if you can help me out!

[jagabo]

That's an unfortunate conversion. Someone ran a blend deinterlace on a progressive PAL video with a field shift. I don't think there's any filter that can fix that. In fact, I don't think it's possible. I'll try a few experiments though. Probably tomorrow.

[budwzr]

Um... yes... I can do it for one billion U.S. Doolars.

I`m not that rich, but I would be happy to compensate you if you can help me out!

Hahaha, that was just some humor. I have no clue. Whatever jagabo comes back with is authoritative and definitive, so you'll know for sure tomorrow I guess.

[hizzy7]

That's an unfortunate conversion. Someone ran a blend deinterlace on a progressive PAL video with a field shift. I don't think there's any filter that can fix that. In fact, I don't think it's possible. I'll try a few experiments though. Probably tomorrow.

Hi,

Just curious to know if you had a chance to look at the clip. How could you tell that someone ran a blend deinterlace on the video?

Thanks!

[jagabo]

How could you tell that someone ran a blend deinterlace on the video?

Every frame is a blend of two images. If you look at any two consecutive frames (where there's motion) you'll see that one of the blends is the same in both frames. For example, if one video frame is a blend of the original film frames 3 and 4; the next video frame is a blend of 4 and 5; the next a blend of 5 and 6. There is no way to remove this type of blending.

For example, here are two consecutive frames:





The arm of the woman in the foreground is horizontal in both of them. One frame is mixed with the film frame before (with the arm raised) and the other is mixed with the film frame after (with the arm lowered).

[hizzy7]

So I guess there is no hope? Thank you for giving this a try, and thanks for the information!

[budwzr]

So how do you avoid this in the future? I have never seen this in ten years as a videologist.

[jagabo]

In all likelihood a TFF PAL broadcast was captured as BFF (or vice versa). Rather than encoding interlaced, or restoring the original frames with a field shift, someone decided to use a blend deinterlace to get rid of the comb artifacts and encode progressive (maybe they thought it was a 50 field per second interlaced video).