"Chambers" <ben### [at] pacificwebguycom> wrote in message 
news:47a7fe6e$1@news.povray.org...
>I was at Best Buy the other day, and saw a TV that ran at 120hz.  It didn't 
>just refresh at that rate, though; it actually created new frames to put in 
>between the others.
>
> This means that, for each of the 30 whole frames you get off the DVD, you 
> would get 3 additional frames interpolated between them.

Interesting, but how does it do that? I would think that analysing the 
images at that speed would be extremely costly. In contrast, I'm curious if 
the mpeg2 (or whatever DVDs are using) contain motion information in the 
encoding, like some codecs do. If that is the case, it might just divide the 
specified motion between frames by 4 and use that, still using pretty 
standard decoding. This would require of course that the same divide is also 
the one reading (decoding) the media.

Anyway, there will be things it can't do. For example, a small object moving 
so fast that it's at one side of the screen in one frame, and in the other 
side in the next frame will not be able to be correctly interpolated. 
Basically, for the things that would benefit the very most, it won't work.

> It doesn't help still pictures any, but when anything is moving on it... 
> WOW.  I can not begin to describe how much more lifelike it is.

Can you show a youtube video of it? Just kidding...

> I would love to see that thing running a PS3 or something...

Well, even if it's not using the codex method, it would at least have to 
know both frames to interpolate between before starting interpolation. This 
would mean a delay of one (normal) frame. That may not be very important 
though, but perhaps expert players will be able to notice the decreased 
responsiveness.

Rune
-- 
http://runevision.com

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