Truemotion algorithm

[Slave01]

I know there were threads in the past but i want to renew the question.
Does anyone know the algorithm behind philips true motion? Double framerate of ffdshow is however the half of truemotion which contemplates 100 interpolated frames instead of ffdshow 50.
Nobody knows? Will ffdshow work on it in the future?
PS: sorry for the error in the title.


Greetings

[Didée]

Originally posted by Slave01
Does anyone know the algorithm behind philips true motion?
Of course someone does. Probably he is sitting at Philip's ... :)

However, while the demo app they're providing seems uber-impressing, it's only a 100% plain horizontal panning ... a too simple demo case. When I watched a true-motion TV in the store, it still looked good, overall ... but it also made *visible errors*. So much about the "magic" ;)

[Slave01]

Watching it at stores i can say it looks like a sort of motion vectors but of course is computationally hard to examine motion vectors. In mpeg4 there are mv so i can see a link between these technologies. For example it could be a sort of mpeg4 decoder improvement examining mv and extrapolating frames. Is it possible? or i need to clear up my ideas?


Greetings

[scharfis_brain]

yeah, I've seen a natural-motion TV in a store, too.

I found it looked nasty.
I don't want my movies to look like video

It may be a wise decision for 50 Hz to 100 Hz interpolation for 100Hz CRT-TVs to avoid double contures. But for Film contents it is IMO destroying the look.

Oh and try to watch at moving objects, that move over each other in different directions. They got blocky :rolleyes:

[Phanton_13]

I have two questions:

1. The 100hz off Philips true motion are interlazed or progresive?

When you use FFDShow double framerate you obtain a 50Hz progresive image, this can make the diference, if you make a 50hz progresive to show as interlazed you obtain a 100Hz interlazed.

2. Are they using a motion vectors to double the framerate?

In this case can be they first interpolate de 25hz to optain 50hz progresive an then predict a frame using motion vectors or only they predict a field using the motion vectors.

[Slave01]

1. The 100hz off Philips true motion are interlazed or progresive?
I think it is progressive.


Greetings