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billr55829350
Inspiring
May 26, 2023
Question

Any way to repair badly de-interlaced footage

  • May 26, 2023
  • 3 replies
  • 1276 views

I've been provided source footage that I believe started out as PAL, but was given to me in HD resolution (1920x1080).  It looks like it was incorrectly de-interlaced, as it has blocky horizontal lines throughout, making it unusable in its current form.
Is there a way to correct this issue?  I'm attaching a sample of one frame.
Things I've tried:
- Interpret footage as interlaced, either upper or lower field first (I know this is a silly thing to do, as it's not interlaced, but it did help marginally)
- Apply the [obsolete] Antialias effect.  This removes much of the issue, but I lose a lot of detail.

I would appreciate any advice, thanks.

This topic has been closed for replies.

3 replies

Ann Bens
Community Expert
Ann BensCommunity Expert
Community Expert
May 27, 2023

Not much you can do as It's backed in.

As suggested, neat video or topaz.

Rag and Bone
Community Expert
Rag and BoneCommunity Expert
Community Expert
May 27, 2023

You could also try Neat Video.

Or Topaz Video AI

They both offer demos. My experience with Topaz is that produces good results on some, but not all, files. But, it's expensive and very slow, at least on my 2020 iMac (3.6 GHz 10-Core Intel Core i9,  Radeon Pro 5700 XT 16 GB)

Kevin-Monahan
Community Manager
Kevin-MonahanCommunity Manager
Community Manager
May 27, 2023

Hi Bill,

Thanks for the message. I read about your problem. It seems a bit strange because PAL is progressive whether it is in SD or HD, not interlaced. It is usually 25fps. What are the specs on this current file? Can you check out the footage properties? Is the footage SD and was up-scaled to HD? If so, you may want to try to import the footage into After Effects and use the "Detail-preserving Upscale effect" function there and check out the results. https://helpx.adobe.com/after-effects/using/detail-preserving-upscale-effect.html I hope the advice helps. Let us know!

 

Thanks,
Kevin

Kevin Monahan - Sr. Community & Engagement Strategist – Pro Video and Audio
Averdahl
Community Expert
AverdahlCommunity Expert
Community Expert
May 27, 2023
quote

It seems a bit strange because PAL is progressive whether it is in SD or HD, not interlaced. It is usually 25fps.


By @Kevin-Monahan

 

PAL is not progressive-only and has never been, we have both 576i @ 25 fps and 1080i  @ 25 fps. 🙂

    B
    billr55829350Author
    Inspiring
    May 27, 2023

    Thank you for your responses.
    My understanding is, this footage was for broadcast TV in Europe, hence my assumption that it was originally PAL.  Of course, I have not idea what it was originally; all I know now is that it was upscaled to HD, using a flawed process of some type.  Thanks again!

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