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.

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.

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

-- 
...Ben Chambers
ben at pacific web guy dot com (no spaces)
www.pacificwebguy.com

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> 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.

Cool. Does it just interpolate the colors, or does it actually try to detect
motion to make an educated guess about what should appear between two
frames?

 - Slime
 [ http://www.slimeland.com/ ]

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Slime wrote:
>> 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.
> 
> Cool. Does it just interpolate the colors, or does it actually try to detect
> motion to make an educated guess about what should appear between two
> frames?
> 
>  - Slime

Unfortunately, I don't have any more detailed information.  Remember, 
this was a demo in a store.  They weren't trying to educate me, they 
were trying to sell me on it.

In fact, the TV had a built-in function to provide the higher refresh to 
one side, and play the standard picture on the other, so you could 
compare more easily.  But not one bit of information about how the 
intermediate frames were generated :(

I would assume a simple color interpolation, although other techniques 
are, of course, possible.

-- 
...Ben Chambers
ben at pacific web guy dot com (no spaces)
www.pacificwebguy.com

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"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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"Chambers" wrote;
> I would assume a simple color interpolation, although other techniques 
> are, of course, possible.

I just can't see how that would give extra lifelikeness. It's just a 
blurring along the time-axis.

Rune
-- 
http://runevision.com

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Rune <aut### [at] runevisioncom> wrote:
> 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.

  I doubt the *TV* gets any mpeg2 data. It just gets raw video.

-- 
                                                          - Warp

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And lo on Tue, 05 Feb 2008 06:12:52 -0000, Chambers  
<ben### [at] pacificwebguycom> did spake, saying:

> 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.
>
> 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.

I thought all the EU 100Hz TVs already did that, and they've been around  
for ages.

-- 
Phil Cook

--
I once tried to be apathetic, but I just couldn't be bothered
http://flipc.blogspot.com

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Chambers wrote:
> 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.
> 
> 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.

It also helps with the viewing of DVDs movies.  Movies generally go at 
24 FPS, so the number of frames to be interpolated is constant.  With a 
frame rate that is not a multiple of 24 (such as 60, which is more or 
less the NTSC rate), some frames get played twice and some get played 
three times.  The difference is noticeable to some observers.

Regards,
John

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Chambers wrote:
> 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.

I've seen experiments where they filmed big-screen movies at 60fps, and 
people would literally fall out of their chair when watching a movie 
filmed from the seat of a rollercoaster.

-- 
   Darren New / San Diego, CA, USA (PST)
     On what day did God create the body thetans?

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Rune wrote:
> the mpeg2 (or whatever DVDs are using) contain motion information in the 
> encoding, 

They have at least "copy this part of the screen from here to there", 
but I'm not sure if it's "motion" as such or just what is used to better 
compress images with moving parts.

-- 
   Darren New / San Diego, CA, USA (PST)
     On what day did God create the body thetans?

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