It's been a few months since this subject was discussed on the VP forum... However, in the LCDs boards, Frame Rate Conversion seems to the 'topic-du-jour', with all the hype around 120Hz.

Samsung, Sony (etc.) all claim to be doing Motion Compensated Frame Interpolation - where they are "creating" frame(s) in-between existing frames.

I've been wondering about how this came about without VPs integrating them in the first place?
Obviously, there would be a case to be made for the lack of 120Hz input and thereby severely limiting such a product, but if one can do 60to120, I don't see why it wouldn't be able to do 24to48 or 30to60? Or even 24to60 (60to24to60)? You can debate on how it would affect the "film-stutter-look" all you want, but I am sure there would be at least some of us that would enjoy playing with such a toy. I know I would.

With the latest SI HDMI receiver, the maximum supported resolution is 1080p60 or 720p/1080i120, are we due for some 120Hz VPs soon?

Isn't it a bit unusual for this type of technology not to migrate from high-end video processors down to projectors and panels? Who's behind this stuff? Where's ABT, Gennum, Faroudja, on this matter? Can Lumagen or PMS get their hands on a FRC chip?

Where's my 2007 X-mas gift?!

Lumagen video processors support the 1080p48 output mode. For displays that can accept this mode, it will recreate the movie theater experience. Movie theaters flash each frame of a 24fps film on the screen twice, which means that the movie is shown at 48fps.

The bandwidth of a 1080p120 video signal is huge. There are very few displays that can accept an input that is this high bandwidth.

Best regards,
Randy Freeman

Randy,

Munch is asking about motion-compensated frame rate conversion. That's not the same as taking a 24 frame/sec source and showing each frame twice at 48 Hz.


munch,

The only video processor I've heard of which offers this would be a new Faroudja unit that was announced by Meridian. I don't know if it's shipping yet. As I recall, it was very, very expensive (> $20k).

- Dale Adams

Samsung, Sony (etc.) all claim to be doing Motion Compensated Frame Interpolation - where they are "creating" frame(s) in-between existing frames. ?!
I am not ready to believe that Samsung and Sony are actually doing Motion Compensation yet.

To me it appears that whatever they are doing would be more along the lines of blending/fading two frames in order to get an intervening frame for the purpose of, say, doubling the frame rate. So, if for example we have frame 1 with a ball at the left and frame 2 with a ball at the right, the intervening "frame 1 and a half" would have a less distinct image of the ball at the left and also a less distinct image of the ball at the right instead of the more correct ball only in the middle (assuming that compensation logic determined that the subject consisted of a ball going from left to right).

Video hints: http://members.aol.com/ajaynejr/viddoubl.htm

Allan,

Lots of people are claiming to do block based intermediate frames (a kind of dumbed down version of motion compenation). The most vocal about it is Philips, which claim they can produce 2 intermediate frames that are completely accurate and relevant.

Allan,

Lots of people are claiming to do block based intermediate frames (a kind of dumbed down version of motion compenation). The most vocal about it is Philips, which claim they can produce 2 intermediate frames that are completely accurate and relevant.

Very true indeed. I've seen the HD DNM on/off 9532. DNM introduces quite a bit of artifacts, notably sawtoothing (on the steel cylinders in Casino Royale chase scene), but it does seem to smooth out the motion a bit when compared to Sony XBR4 (which really sucks).

:)

Every system I've seen so far (the Philips and 2 different PC solutions) have had too many trade-offs for me to be satisfied. Once the VW200 launches it will be interesting to see what viewers think. Currently, I'm suspecting that it will be similarly flawed.
I've yet to see the Meridian (but they seem to have gone quiet).

Every system I've seen so far (the Philips and 2 different PC solutions) have had too many trade-offs for me to be satisfied. Once the VW200 launches it will be interesting to see what viewers think. Currently, I'm suspecting that it will be similarly flawed.
I've yet to see the Meridian (but they seem to have gone quiet).

I have seen it in action a few weeks ago, Faroudja was showing several of their tricks based on the 'wave' engine including this. It looked very nice but showed it in ways that it wasn't easy to judge. Talking with one of the engineers was fun in that they claim not to use the original frames at all if they don't need that timepoint. They also claim anything can be converted so 24p in will be used to generate as many new frames as you want for example 60 without any problems or even 120. The compleet (input frames) will only be used if they happen to be on the correct time.

No idea if this makes sense, maybe Dale or Ofer can comment on it. The box was based on fpga's and they told me the price for the first box that would use it (guess meridian) would be around 10k not 20k.

Daniel.

No idea if this makes sense, maybe Dale or Ofer can comment on it. The box was based on fpga's and they told me the price for the first box that would use it (guess meridian) would be around 10k not 20k.There's no reason you couldn't do this if you have a working motion compensation system. That would allow you to compute the image at any point between existing frames, so you could just choose to show computed frames and not original source frames.

The price I originally saw quoted for the MVP6080 was $27k as reported here: http://blog.ultimateavmag.com/ces2007/010807MeridianProc/ If that's been reduced by $17k, all the better. :D Do you know if the $10k product was the MVP6080 or something different?

- Dale Adams