[mythtv-users] How to improve deinterlacing?

Brian Wood beww at beww.org
Sat Jun 9 13:28:07 UTC 2007


Jonathan Seawright wrote:
> I get major lines during fast movements.... IE: Someone waves their arm
> or jumps up and down... I get these lines on them in HD content.. Is
> there by any chance that you're getting this as well? (or have had it
> before?)

Without seeing it myself I can't be sure, as I don't know what "major
lines" are.

But you may well be seeing MPEG artifacts, common with fast motion and
poor quality encoders or decoders.

("Poor" quality is a relative thing, a $30,000 encoder is considered by
some to be "poor".)

Normally these problems show up as "macro blocking", more "blockiness"
than "lines". Such problems existed in the last Superbowl broadcast,
confirmed by informed viewers on both coasts.

BEWW


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