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Deinterlacing – what’s the right way to do it?
Hello,
I import XDCAM 1920x1080i25 footage into sequence with 1920x1080i25.
I want to deinterlace the footage.And the question is:
Should I just select Always deinterlace in clip options (within sequence) and export to progressive format,
or should I import footage into sequence with Progressive setting (1920x1080p25) and turn deinterlacing on clips in that sequence?
Do I lose vertical resolution when deinterlacing?
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3 Replies
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The question is why do you want to deinterlace? This will make a difference as to the workflow used. If you are creating video clips for the internet, just edit as interlaced, then simply choose “deinterlace” when exporting the final video clip.
Jeff Pulera
Safe Harbor Computers -
There are actually a lot of options when it comes to deinterlacing (you can probably find some on this site). Methods that give you a really nice result often take a little more time, but not necessarily. I personally have a very low opinion of QuickTime and Final Cut’s deinterlacing ability, so I would avoid using it if you can. It’s not quite as bad as just duplicating the fields, but it’s pretty close.
My favorite tool so far when it comes to deinterlacing is Episode Pro, using edge-detecting interpolation and the “deinterlace moving areas” option. This is one of the best methods I’ve found, especially with footage that doesn’t have much motion in it, because it looks for that “comb” effect of interlacing that you see when there’s motion, and just deinterlaces that area of the picture. Although if you’re delivering to the Internet from a 1080i timeline, you can sometimes just turn on the low-pass filter in Episode’s resizing module and leave deinterlacing out completely. I’m kind of obsessed with Episode.
If you don’t want to pay for Episode, and your final product is only a couple minutes, Compressor has some good options in its Frame Controls tab. However, be warned that it’s really easy to increase your encoding time from 1 hr to 80 hours when using Frame Controls, whereas Episode doesn’t have that issue.
And if you have tons of money to burn, get a Digital Rapids card, which has the most gorgeous and flawless deinterlacing I’ve ever seen, and it does it in realtime and never creates artifacts.
Owen Smithyman
BARS+TONE -
Digital Rapids oem cards, are still using a genesis chip,
the Faroudja (DCDi) “Genesis display perfection” gm6015-lf,
in order to deinterlace and upscale.
….This faroudja chip was made in 2002.The Digital Rapids oem cards are quite expensive,
and I think that today in 2010 soon 2011 they could at least,
use better and newer chip from HQV or Anchor Bay.For exemple the DRC-STREAM 500 cost 895$,
and the right price should be 395$ instead !
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