[opendtv] Olympics picture quality
- From: Doug McDonald <mcdonald@xxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Thu, 19 Aug 2004 12:03:46 -0500
Somebody here may well be able to answer my question
on the picture quality of the HD Olympics.
Sinclair only turned on their true HD here for the
Olympics ... it was ready days earlier, but they absolutely
refused to let us see some regular HD programming before the
Olympics, so that's all I have seen.
For static pictures, the quality (1080i) is certainly OK.
There seems to be zero detail that my 720p TV can't handle:
no change when I adjust the "sharpness" control, except for the
local bug, and at CC It saw no more detail on 1080i sets, including
the Sony XBR 950 set for "pro" mode, but it looks fine.
However, when fast motion starts, such as the flying rings logo
they use for replays, all Hell breaks loose: the logo itself
breaks up into blocks, and is fuzzy to boot. I see no problem
with flying logos on MNF (720p). When they show from-above
distant shots of swimmers, the foam breaks up into total pixelated
mud.
When they show fast gymnastics, when they pan to follow a running
gymnast, the background seems to move smoothly, so at least that
part of the 50i->60i conversion is passable. BUT ... when the
gymnasts have wailing arms or legs ... they actually disappear
entirely! No, they don't get blurry ... there is no blur, just
background behind where they should be. Well sometimes there is
some faint trace or blurry stuff in front of the background,
but not much.
Clearly the broken up flying logos is a local encoder issue, but
what about the foam breakup and the missing arms? Is this local,
or due to the 50->60 problem? Has any of you people seen what the
un-19.3'd network feed looks like?
Overall I would say that both swimming and gymnastics has moments
of simply unacceptably bad pictures.
Mark Aitken: are you sure that the WICD people have got their
encoder set right? Are you using the same brand of encoders
at all your 1080i stations?
Doug McDonald
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