Upscaling to Hi Def

On Sky news they just showed a Denon amplifer thing that supposedly
upscales DVDs and other sources to Hi Def quality.

What does it really do? Or rather, what does it do to the pictures
coming from a standard dvd player to supposedly make them HD

cheers
ed

Ed wrote:
On Sky news they just showed a Denon amplifer thing that supposedly
upscales DVDs and other sources to Hi Def quality.

What does it really do? Or rather, what does it do to the pictures
coming from a standard dvd player to supposedly make them HD

cheers
ed

It upscales by stretching the picture. It cannot make it HD if it isn't already HD. It will look a mess i
would think.

Nige


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"Ed" wrote in message
ups.com...
On Sky news they just showed a Denon amplifer thing that supposedly
upscales DVDs and other sources to Hi Def quality.

What does it really do? Or rather, what does it do to the pictures
coming from a standard dvd player to supposedly make them HD

cheers
ed



it changes the resolution to that of hi def - but as you've guessed, it wont
look any better.
after all - every single lcd or plasma out there that has a resolution which
isnt exactly that of PAL, upscales already to the resolution of the screen -
just like that amp does.

you could take a vcd quality mpeg file and convert it to 1900x1080
resolution - but it would still look just as bad.



--
Gareth.
A french man who wanted a castle threw his cat into a pond.
http://www.audioscrobbler.com/user/dsbmusic/

Ed wrote:
On Sky news they just showed a Denon amplifer thing that supposedly
upscales DVDs and other sources to Hi Def quality.

What does it really do? Or rather, what does it do to the pictures
coming from a standard dvd player to supposedly make them HD

It does pretty much exactly what your PC does when you resize the window
(or select full screen) while watching a DVD. It scales the picture
using something like bicubic interpolation. It can improve the
appearance of the picture, but of course it doesn't add any information
to the picture (by definition, anything added is noise) so you haven't
got a more detailed picture, but it can still look a bit better. As
other posters have said, if you're using a TV with non-PAL native
resolution (i.e. all of them) then the TV is already doing this anyway.
The real advantage of this type of player is that you get a digital
output, avoiding the unnecessary D to A to D conversion that you need
with analogue.

the dog from that film you saw wrote:
"Ed" wrote in message
ups.com...
On Sky news they just showed a Denon amplifer thing that supposedly
upscales DVDs and other sources to Hi Def quality.

What does it really do? Or rather, what does it do to the pictures
coming from a standard dvd player to supposedly make them HD

cheers
ed



it changes the resolution to that of hi def - but as you've guessed, it wont
look any better.
after all - every single lcd or plasma out there that has a resolution which
isnt exactly that of PAL, upscales already to the resolution of the screen -
just like that amp does.

Do LCD and plasma TVs have an option to NOT stretch the picture, thus
leaving small black lines but also not ruining the picture?

TIA, Dom

Do LCD and plasma TVs have an option to NOT stretch the picture, thus
leaving small black lines but also not ruining the picture?

No, it would look abysmal! Any fixed resolution device utilises all the
scanlines, duplicating lines if required...

Justin.

"DVDfever Dom" wrote in message

it changes the resolution to that of hi def - but as you've guessed, it
wont
look any better.
after all - every single lcd or plasma out there that has a resolution
which
isnt exactly that of PAL, upscales already to the resolution of the
screen -
just like that amp does.

Do LCD and plasma TVs have an option to NOT stretch the picture, thus
leaving small black lines but also not ruining the picture?

TIA, Dom



doubt it - what you'd actually get, if it left the picture totally alone
would be a 720x576 picture surrounded by a gigantic black border on all
sides.

ruining it is a bit harsh though - plenty of lcd and plasmas can present
high quality pictures- it's a matter of what you are used to,
after a few weeks of a sharp lcd i found the picture on my loewe aconda to
look strange.



--
Gareth.
A french man who wanted a castle threw his cat into a pond.
http://www.audioscrobbler.com/user/dsbmusic/

If it ain't filmed in HD, it ain't showing in HD.


Ed wrote:
On Sky news they just showed a Denon amplifer thing that supposedly
upscales DVDs and other sources to Hi Def quality.

What does it really do? Or rather, what does it do to the pictures
coming from a standard dvd player to supposedly make them HD

cheers
ed

Nigel Barker wrote:

Pretty much all movies are filmed in a far higher resolution than HDTV & have
been for decades. 35mm film is far higher resolution than even 1920 x 1080i.

OK, but if it's been decimated to SD resolution, nothing is going to
reconstruct the original resolution, it's just inventing bits which fit
the gaps ...

Nigel Barker wrote in
:

On Sat, 18 Mar 2006 15:23:36 GMT, "Choofie"
wrote:

If it ain't filmed in HD, it ain't showing in HD

Pretty much all movies are filmed in a far higher resolution than HDTV
& have been for decades. 35mm film is far higher resolution than even
1920 x 1080i.

Thanks to the BBC using video for nearly all their shows over the years,
there's little chance of seeing many old shows in HD.

The Americans, who preferred to use film, can now watch 70s shows such as
Charlie's Angels and Cheers in HD.