[opendtv] Re: Native interlaced on progressive displays
- From: Olivier Houot <olho_avatar_i@xxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Tue, 21 Oct 2008 20:55:06 +0200
Ah, still polling opendtv, Jeroen ? I was wondering.
I haven't moved physically, but since mobile activities have been
separated, sold, joint-ventured several times over, it is no wonder i am
no longer part of the original address book :-) I have done a LinkedIn
entry some time ago, but i am not sure i can still find my password.
Glad i was not too far off the mark in my attempt. Is this pp.exe
application you are talking about available easily ?
Do you mean matrix displays like OLED are addressed in such a way that
it is not possible to have a line per line control ? It seems to be such
a trivial matter.
240Hz displays eliminate the flickering issue (not much of it on LCDs
anyway, unless you are using pulsed backlighting) and offer good motion
rendition, but it seems they do not solve the problem of interlaced
legacy, which is not going away immediately, with the 1080i format.
But i guess it will be deinterlacing algorithms, indeed. The software
players manage them in real time, the graphic card also has resources
for that, and the projector as well. If only i can find a way to feed
the original signal directly to the projector through HDMI to see what
it's worth...
Did you see that LetItWave has been bought by Zoran ? I don't know if
that has yielded available mass-market products, yet. Their solution
appeared to have good de-interlacing capabilities, too.
Regarding the interlaced-on-progressive method, one of the thing that
made me think along those lines was the ongoing digitization of the
french TV archives. I think it is unfortunate that 819 lines TVs are now
museum items and no one would be able to contemplate those pictures in
their original quality. But then i thought a computer monitor could
emulate them using this trick.
Well, in the end, it seems they are transforming the archives to 625
lines using a converter that was specially developed for the purpose. A
shame, in my opinion. But of course it allows them to use off-the-shelf
digital video recording equipments and thereby minimize costs, as they
are on a tight budget.
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