[MPlayer-users] Deinterlacing (was: Digital camcoder)

[Adam Rice]

Quoting Adam Nielsen (a.nielsen at optushome.com.au):
> Oh ok, I'll have to look into that.  So what would happen then if you doubled 
> the vertical resolution? (i.e. displayed every scanline twice - maybe 
> inserting an extra single scanline or something on every second frame to 
> bring it down to the correct vertical position.)  Could you do something like 
> this to remove the 'vertical jitter'?

You'd have to interpolate between the scanlines to avoid obvious blockiness.
At which point you'd have pretty much reproduced what your television does, so
your brain's own de-interlacer should kick in and give a good viewing
experience.

What's attractive to me is that the interpolation could be done by video
hardware, and although the framerate is doubled, the data per frame is halved,
so CPU requirements would only increase marginally. I think this would make a
good default for DVD playback.

Adam

-- 
Adam Rice -- adamrice at ntlworld.com -- Blackburn, Lancashire, England