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Posted by Joshua Zyber on 01/17/07 00:22
"M.I.5" <no.one@no.where.NO_SPAM.co.uk> wrote in message
news:45ace878$1_1@glkas0286.greenlnk.net...
>> Programs such as the nightly news broadcast in 4:3 on the HD channel
>> are not true HD. They're Standard Definition that's been upconverted
>> to the higher resolution. It may look better than the regular SD
>> feed, but it's not true High Definition.
>
> So you now agree that standard resolution material looks better on
> systems whose resolution is higher than the source material. That's 3
> then.
It looks better primarily because the digital signal on the HD channel
is cleaner than the noisy analog signal on the Standard Def broadcast.
Also, upconversion of Standard Definition material is performed by
interpolating extra pixels between the original active picture content.
This can create a smoother image with less visible pixel structure when
magnified to a large screen size, but it doesn't add real picture
detail. There is no comparison at all between upconverted SD material
and true HD material. It's a night and day difference.
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