compensate for 'pixel shimmer' on LCD screens somehow?
- From: jkn <jkn_gg@xxxxxxxxxxxxxxx>
- Date: Sun, 30 Sep 2007 14:14:12 -0700
Hi all
As our old Hitachi CRT TV has given up the ghost I'm in the market
for a new TV. Things being as they are this is likely to have an LCD
screen. We have a Topfield PVR as a source FWIW.
Now although I'm a bit behind the times equipment-wise I used to be
fairly clued in re. digital TV - in fact I wonrekd on the first
generation of 'Freeview' STBs (OnDigital as they were then). Perhaps
because of hours spent looking at test transmissions from Crystal
Palace, or more likely due to my engineering bent, I'm a bit sensitive
to some things when looking at a picture.
I've been watching DVD playback on a (Philips) LCD screen recently.
Something that really stands out to me is the change in clarity of an
image when it changes from being still, to moving. It's obvious to me
in facial closeups, hair shots, and so on. I assume that this is due
to the MPEG encoding having only so many bits to play with. To me this
looks like images change from sharp to blurry, and blurry to sharp, as
things move, and then stop. I've seen it referred to elsewhere on this
newsgroup as 'pixel shimmering'. Whatever happened to wavelet
compression?!! But anyway, ...
To be honest, I'm wondering if these artefacts will drive me mad on a
TV. I wondered if there are any facilities, either built into TVs, or
applied externally, to perhaps slightly blur the picture, or similarly
make things palatable for fussy consumers like me.
Thanks for any thoughts.
jon N
.
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