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Looking for Digital Natural Motion or something like that

post #1 of 123
Thread Starter 
I don't know if you have already heard about the revolutionary deinterlaced system called TrimensionDNM. It was implemented by Philips and used for the first time in WinDVD 6, a few years ago. Today the tecnology has a new name: TrimensionDNM Advanced. It appeared in WinDVD 7 and now in the last version of WinDVD, the 8 version.

How it works? It's simple. Philips explain it: 'Usually, the refresh rate of the PC is higher than the frame rate of the video source. Consequently, each input frame is shown multiple times by the monitor. This repetiition of the input frames introduces an unnatural, jerky motion, wich is called motion judder in the literature. TrimensionDNM solves this fundamental problem by calculating new frames between the originals'. So, that is: you come from 24 frames per second and go with real 60 frames per second. Oh, yeah, baby! Pretty amazing, I know.

Bellow we can see an image the shows the commom problem that we have with the repetition of the pictures that seems to double the image, tremble it and decrease its definition (at left). And the solution by Philips TrimensionDNM tecnology (at right):



Believe me, the algorithm is amazing, and really works. The position of the objects of the entire scene is calculed in real-time, and you can't find any problem, even in high speed scenes (like the scene where Neo fights Morpheus, in 'The Matrix'). The most exciting thing is that all the movimentation becomes smoother and enjoyable to see. The pans (horizontal moviments of the camera) are the most beautiful thing, now with TrimensionDNM. Despite the fact that you can only use it with MPEG1 and 2 (i.e. DVDs), I can tell: if you like high FPS games you'll never want anything else; TrimensionDNM is the answer.

Here you can download a simple and small demo (579 kb) that can show the tecnology in action: http://www.trimensiontech.info/bin/T...ionDNMdemo.exe

You can also download the original video to compare with your favorite player (WMP, VLC, MPC, BsPlayer, etc.): http://www.trimension.philips.com/in...demo_room.html

Or download the new WinDVD 8 Platinum trial version and test it in real world (i.e. with your favorite DVD). To enable the TrimensionDNM you must enter in the Video Center and then enable it manually, because it came disable by default. The only problem is that the new version that is available (8.0.6.101) maybe can't allow you to enable the TrimensionDNM. But if it occours, tell me and I'll upload another version to my server. Here is the direct link from Intervideo: http://www.intervideo.com/WinDVD/WinDVD_Download.jsp

Well, to conclude, I want to say that the tecnology isn't perfect in some specific situations. I think that WinDVD is really a great player, with unique features, but I have to tell that Intervideo is lauching unstable versions, and, worse, changing week after week the build and never tell to the users. Its website also doesn't have a forum. So, what really brings me here is that I found a strange problem with overlay videos running with TrimensionDNM. If someone has 'Contact' movie, can notice that TrimensionDNM blinks the image when the little girl, at a radio, says 'I need a bigger antenna', and then a morph to Jodie Foster looking at a bigger antenna. 'Lethal Weapon 2' has the same problem in a few scenes. I've already tried to send e-mails to Intervideo talking about this problem, but they are stupid and ask for my register number - that I don't have, of course. Hey! I'm trying to help them and they don't even listen to me because I don't have bought their product. I didn't buy it, and I'll never buy until they fix it. And what really drives me crazy is that the WinDVD 6 version doesn't have this problem. However, this version has others weird behaviours with TrimensionDNM, specially when you play dark videos, that tends to be shrinked constantly.

So, if someone could test the program deeply or know something about this little problem, I would love to talk about it.

Oh! I almost forgot to say that recently I discover a player that can do similar 'motion compensate' function. The name is Crystal. It promisses to do the same thing that TrimensionDNM, BUT with any kind of video! The name of this tecnology is 'Motion Morphing'. I've already tested, but I noticed a few artefacts in some scenes. What you think, guys?

Thanks for your attention, and best regards.


P.S.: sorry for my english; my official language is portuguese.
post #2 of 123
I know very little of the technology, but after reading your lengthy post, I believe your english is much better than most of the younger native "english" speaking posters here that our government schools have churned out of late....

post #3 of 123
Thread Starter 
Hmmm... The situation should be really bad, because I know that I made a lot of mistakes. But, if it make you more comfortable, I must say that here, in Brazil, the situation isn't different. It seems that the youngers don't care about anything.

Changing the subject, I'll wait for some information about the tecnology.

Thanks anyway.
post #4 of 123
Delerue,

Do a search in forum - DNM was debated almost to state of "holy war" here when WinDVD with its support was shipped.
Basically all people fall into 2 camps - first one likes output of DNM, other one hates it.
One of main reasons for "hate" is that this technology ruins what was intended by original movie creator and makes movies look like "soap operas".
post #5 of 123
Thread Starter 
Quote:
Originally Posted by Kroot View Post

Delerue,

Do a search in forum - DNM was debated almost to state of "holy war" here when WinDVD with its support was shipped.
Basically all people fall into 2 camps - first one likes output of DNM, other one hates it.
One of main reasons for "hate" is that this technology ruins what was intended by original movie creator and makes movies look like "soap operas".

Yeah! I saw it. The people that say that TrimensionDNM ruins videos (movies indeed) don't know what they're talking about. The jerky motion of the commom deinterlaced systems really sucks and don't have anything to do with the reality. I believe that what happens with these kind of people is that they don't understand how the eye works and how reality looks like. I can't believe that a inteligent and sensible guy preffer less frames than more frames. Doesn't make any sense, unless they're a very conservative people, what show that maybe they aren't very smart.

And I can't find anyone talking about these little problem that I said before. And Crystal Player seems to be a invisible ghost, hehehe.
post #6 of 123
Quote:
Originally Posted by Delerue View Post

Yeah! I saw it. The people that say that TrimensionDNM ruins videos (movies indeed) don't know what they're talking about. The jerky motion of the commom deinterlaced systems really sucks and don't have anything to do with the reality. I believe that what happens with these kind of people is that they don't understand how the eye works and how reality looks like. I can't believe that a inteligent and sensible guy preffer less frames than more frames. Doesn't make any sense, unless they're a very conservative people, what show that maybe they aren't very smart.

And I can't find anyone talking about these little problem that I said before. And Crystal Player seems to be a invisible ghost, hehehe.

Look Trimension salesman, it is one thing to start an account here for the purpose of unabashedly praising a product to the point of violating the forum rules. It is another to start flaming people that don't think your product is wonderful.

If you want to discuss/debate HTPCs here, that's fine. If you want to sell software, while trashing fellow members that don't think your software is any good, go away.

-Suntan
post #7 of 123
Thread Starter 
Quote:
Originally Posted by Suntan View Post

Look Trimension salesman, it is one thing to start an account here for the purpose of unabashedly praising a product to the point of violating the forum rules. It is another to start flaming people that don't think your product is wonderful.

If you want to discuss/debate HTPCs here, that's fine. If you want to sell software, while trashing fellow members that don't think your software is any good, go away.

-Suntan

You're saying nothing with nothing. I'm talking about the DNM tecnology, and looking for more information about it. I also said something about other program - Crystal, and I'm using arguments to prove that more FPS is obviously better than less. And if I'm a Intervideo employee, man, my marketing need to be improved really fast, because how can I sell a product that I'm criticizing?

So, what's wrong? Take it easy.
post #8 of 123
Quote:
Originally Posted by Delerue View Post

...I want to say that the tecnology isn't perfect in some specific situations. I think that WinDVD is really a great player, with unique features, but I have to tell that Intervideo is lauching unstable versions, and, worse, changing week after week the build and never tell to the users. Its website also doesn't have a forum. So, what really brings me here is that I found a strange problem with overlay videos running with TrimensionDNM. If someone has 'Contact' movie, can notice that TrimensionDNM blinks the image when the little girl, at a radio, says 'I need a bigger antenna', and then a morph to Jodie Foster looking at a bigger antenna. 'Lethal Weapon 2' has the same problem in a few scenes. I've already tried to send e-mails to Intervideo talking about this problem, but they are stupid and ask for my register number - that I don't have, of course. Hey! I'm trying to help them and they don't even listen to me because I don't have bought their product. I didn't buy it, and I'll never buy until they fix it. And what really drives me crazy is that the WinDVD 6 version doesn't have this problem. However, this version has others weird behaviours with TrimensionDNM, specially when you play dark videos, that tends to be shrinked constantly...

Sounds like this software has some serious issues, and should be avoided until Intervideo is able to get it working just as you say it should. Thanks for the warning. And I can't believe they wouldn't help you just because you refuse to pay for it.
post #9 of 123
Delerue,

Jerky motion is in most cases due to 24fps content shown at 60fps and not multiples of 24 - watch it with right player (that outputs at 24/48fps) and right display (that accepts that signal and shows it without resorting to 60fps) and you will not need any DNM "hacks".
post #10 of 123
Quote:
Originally Posted by Delerue View Post

Yeah! I saw it. The people that say that TrimensionDNM ruins videos (movies indeed) don't know what they're talking about.

That's a pretty brazen statement for a forum newb.

Quote:
The jerky motion of the commom deinterlaced systems really sucks and don't have anything to do with the reality.

It has nothing to do with deinterlacing (film content isn't deinterlaced). Perhaps you don't know what you're talking about.

Quote:
I believe that what happens with these kind of people is that they don't understand how the eye works and how reality looks like.

It's not about how the eye works, or what "reality" looks like, it's about how film is supposed to look, and what the director intended.

Now I'm the first to admit that DNM is very cool, on a technical level. What it does, what it's capable of is truely amazing.

That said, the result of DNM no longer looks like film, it no longer looks like what the director saw when he approved the film to be released.

I've said it before, I'll say it again, I tried to watch Saving Private Ryan with DNM on, and you know what, DNM ruined it for me. It didn't look more real, it looked more fake. That movie, the way it was shot, was supposed to have a sort of choppiness to it, DNM destroys that choppiness.

Quote:
I can't believe that a inteligent and sensible guy preffer less frames than more frames.

I can't understand how intelligent and sensible people can't understand not everyone will agree with them.

And it's not about more frames or less, it's about how the movie was produced, and how it's reproduced. Do you prefer more of your screen filled or less?

Hey, it would be great if movies were more often filmed at higher framerates. But they're not, they're filmed at 24 fps, and should be shown that way.

Quote:
Doesn't make any sense, unless they're a very conservative people, what show that maybe they aren't very smart.

And I can't find anyone talking about these little problem that I said before. And Crystal Player seems to be a invisible ghost, hehehe.

It's been a known problem with WinDVD's implimentation of DNM for a long time (the weird blanking). I want to say there were reports it was fixed in more recent versions, but I don't know.
post #11 of 123
Thread Starter 
Quote:
Originally Posted by stanger89 View Post

That's a pretty brazen statement for a forum newb.

Well, you know that you can't say that looking only to my new register here, in AVS Forum.

Quote:
Originally Posted by stanger89 View Post

It has nothing to do with deinterlacing (film content isn't deinterlaced). Perhaps you don't know what you're talking about.

Of course 24 FPS isn't enough, but is obvious that deinterlacing can change a lot. You can see it watching a movie in a PC and then in a TV. You won't teach me how TrimensionDNM works, I can guarantee.

Quote:
Originally Posted by stanger89 View Post

It's not about how the eye works, or what "reality" looks like, it's about how film is supposed to look, and what the director intended.

No, wrong. It seems that you didn't study cinema. I did. I'm a graduate, and I can tell you that the people that make movies don't care about FPS. Most of this people (I'm still talking about the guys that make movies) even don't know what's this, and the relationship with the human eyes. Movie makers want to do a lot of things, so they change the colors of the film, the sound, physics and other things. But desire a specific FPS (i.e. 24...) I can tell you: no. Excepts for a little little strange guys, 24 FPS is good because is cheaper, because everyone do in this way (since the begining of the cinema) and because no one reclaim about it because this people can't even notice any difference, including movie makers. But there's a 'tecnology diretors' that are telling amazing things, like James Cameron, that seems to want more than 100 FPS!

Quote:
Originally Posted by stanger89 View Post

And it's not about more frames or less, it's about how the movie was produced, and how it's reproduced. Do you prefer more of your screen filled or less?

I want widescreen, of course. If I don't have it, so I want the two little black targes, so they keep the original data. Ironically, you're talking about same thing, but with two different approachs. You're talking about lose data, so I am! Think about it. And, please, don't repeat that skeeping record 'looks like this because it was desired', because you can't prove it and you didn't study cinema.

Quote:
Originally Posted by stanger89 View Post

It's been a known problem with WinDVD's implimentation of DNM for a long time (the weird blanking). I want to say there were reports it was fixed in more recent versions, but I don't know.

Thanks for your feedback. I really want to see the new WinDVD with full working TrimensionDNM. Even better: Crystal Player without artefacts!

[]'s!
post #12 of 123
Quote:
Originally Posted by Delerue View Post

Of course 24 FPS isn't enough, but is obvious that deinterlacing can change a lot.

Not for film content it doesn't. Film content is simple reconstruction, there's no deinterlacing involved.

Quote:


You can see it watching a movie in a PC and then in a TV. You won't teach me how TrimensionDNM works, I can guarantee.

If you're talking about 3:2 judder that's a different issue, and can be solved by getting a display that can do 48 or 72Hz.

DNM is something far different, it interpolates frames.

Quote:


No, wrong. It seems that you didn't study cinema. I did. I'm a graduate, and I can tell you that the people that make movies don't care about FPS. Most of this people (I'm still talking about the guys that make movies) even don't know what's this, and the relationship with the human eyes. Movie makers want to do a lot of things, so they change the colors of the film, the sound, physics and other things. But desire a specific FPS (i.e. 24...) I can tell you: no. Excepts for a little little strange guys, 24 FPS is good because is cheaper, because everyone do in this way (since the begining of the cinema) and because no one reclaim about it because this people can't even notice any difference, including movie makers. But there's a 'tecnology diretors' that are telling amazing things, like James Cameron, that seems to want more than 100 FPS!

And when they film in 100fps, I'll watch it in 100fps. Until then, I'll watch movies in 24 fps since that's what they're shot in.

Whether they make a conscious decision or not, the fact remains that movies are produced at 24 fps. All the effects are generated for 24fps (and it's limitations), and all the choices the director makes for exposure, lighting, etc, are based around that framework of 24fps.

What DNM does is produce something that's significantly different than what the director produced, what was shown in his (or her) screening rooms, and what was shown in the theaters.

Quote:


I want widescreen, of course. If I don't have it, so I want the two little black targes, so they keep the original data. Ironically, you're talking about same thing, but with two different approachs. You're talking about lose data, so I am! Think about it.

Anybody else understand that?

Quote:


And, please, don't repeat that skeeping record 'looks like this because it was desired', because you can't prove it and you didn't study cinema.

Film (24fps) has a look to it, do you disagree?

Directors/producers use film, for whatever reason they choose, they choose it.

DNM fundamentally changes the look feel of a movie, making it different that what the director approved/released/produced. If they wanted a higher framerate, they should have chosen it.

If you want to use it, go ahead, nobody's stopping you, but don't expect everyone else to agree with you that it's the best thing ever.
post #13 of 123
Thread Starter 
Quote:
Originally Posted by stanger89 View Post

Not for film content it doesn't. Film content is simple reconstruction, there's no deinterlacing involved.

Sorry if I can't make it clear. I was talking about watching a movie in PC or TV. You can notice a big difference in pams, don't you?

Quote:
Originally Posted by stanger89 View Post

If you're talking about 3:2 judder that's a different issue, and can be solved by getting a display that can do 48 or 72Hz. DNM is something far different, it interpolates frames.

Yep. DNM solves two problems: deinterlacing and 24 not enough FPS.


Quote:
Originally Posted by stanger89 View Post

And when they film in 100fps, I'll watch it in 100fps. Until then, I'll watch movies in 24 fps since that's what they're shot in.

Ok. I respect your opinion. But, please, don't tell me that movie makers choose 24 FPS because they think about it and want it, and if they want more FPS they will do it. It's a ingenuous thought.

Quote:
Originally Posted by stanger89 View Post

Whether they make a conscious decision or not, the fact remains that movies are produced at 24 fps. All the effects are generated for 24fps (and it's limitations), and all the choices the director makes for exposure, lighting, etc, are based around that framework of 24fps.

I think that DNM is amazing bacause it solves the problems with film costs, lighting, exposure, transport, etc. and, further, brings more proximity to the reality.

Quote:
Originally Posted by stanger89 View Post

Anybody else understand that?

Hmmmm... Maybe my poor english dificults the comprehension. Sorry. What I mean is this: you ask me 'do you prefer more of your screen filled or less?', so I thought that you asked it because you thought that I would say 'more'. But I understood that your point is: the director filmed in 16:9 because he wanted it. So, full screen will loose data. But I think that 24 FPS loose data too, because, besides reality doesn't have FPS, it's obvious that 60 FPS are more closer to the reality than 24 FPS. Sorry if I misunderstood you.
post #14 of 123
I think you are discussing many things at one time.

DNM, as I have understood it, is not at simple "interpolation" of frames, rather, it is based on motion estimation. If the estimation works, chances are good that the resulting image will be closer to the physical reality, but if it dont... And since the information is lost, there is some degree of "guesswork". And it will give a result that is different from what the director saw when cutting.

Movi theaters use frame-repeat to avoid flickering, so they too are "processing" the raw 24fps frames.

I think that Delerue is mixing the terms deinterlace, framerateconversion and Inverse Telecine in a way that makes it hard to get your true meaning at times. If you are processing a true 24p movie for display on a 60p screen, there is no deinterlacing involved.

If your tv will allow only certain framerates, then my guess is that DNM could provide the best framerate-conversion to non-multiple rates?

-k
post #15 of 123
Quote:
Originally Posted by Delerue View Post

Sorry if I can't make it clear. I was talking about watching a movie in PC or TV. You can notice a big difference in pams, don't you?

Only because of the dichotomy between film and normal TV framerates. If you've got a display that can do 24n Hz (ie 48, 72), then you won't have that problem.

Do you see the "problem" in the theater?

Quote:


Yep. DNM solves two problems: deinterlacing and 24 not enough FPS.

On a technical level, I agree.

Quote:


Ok. I respect your opinion. But, please, don't tell me that movie makers choose 24 FPS because they think about it and want it, and if they want more FPS they will do it. It's a ingenuous thought.

What I'm saying is that for whatever reason (maybe economics, maybe convention) they make the movie at 24fps.

Because of that, all the choices they make, things like exposure, etc, are based on that basic fact that the film will be shot and presented at 24fps. I think you'll agree that DNM changes more than just the framerate.

Quote:


I think that DNM is amazing bacause it solves the problems with film costs, lighting, exposure, transport, etc.

It's that it appears to change exposure and lighting and such that many here take issue with.

Quote:


and, further, brings more proximity to the reality.

That's not necessarilly the goal of a film.

Quote:


Hmmmm... Maybe my poor english dificults the comprehension. Sorry. What I mean is this: you ask me 'do you prefer more of your screen filled or less?', so I thought that you asked it because you thought that I would say 'more'. But I understood that your point is: the director filmed in 16:9 because he wanted it.

I was thinking more along the lines of scope (2.39:1) but.... Cropping, or P&S removes part of the picture from the presentation, it changes the film from it's original presented form, simply to make it more "pleasing" to the viewer.

Quote:


So, full screen will loose data. But I think that 24 FPS loose data too, because, besides reality doesn't have FPS, it's obvious that 60 FPS are more closer to the reality than 24 FPS. Sorry if I misunderstood you.

There's no lost data, 24fps is how it was shot, and 24fps is how it's meant to be presented. I don't disagree that 60fps is more fluid than 24fps, that it's more real. But films have a certain look, partially due to their framerate, and DNM changes that look.

Quote:
Originally Posted by knutinh View Post

I think you are discussing many things at one time.

DNM, as I have understood it, is not at simple "interpolation" of frames, rather, it is based on motion estimation.

Interpolation is the most accurate term to use, it's the generation of intermediate data (frames) based on data around it (other frames). Yes, it does use motion estimation to do it.

As an interesting experitment, I believe MVTools for AVISynth can be used to do motion compensated/estimated frame rate conversion as well (I think MVFlowFps will do it)

Quote:


If the estimation works, chances are good that the resulting image will be closer to the physical reality, but if it dont...

But is the goal of a film to be closer to reality? Take Sky Captian and the World of Tomorrow or Sin City, two films that are highly stylized, and not meant to be close to reality.

Or my favorite example, Saving Private Ryan, that was shot with a very short exposure, which gives it a very choppy, "picture show", surreal feeling.

Quote:


And since the information is lost, there is some degree of "guesswork". And it will give a result that is different from what the director saw when cutting.

Exactly.

Quote:


Movi theaters use frame-repeat to avoid flickering, so they too are "processing" the raw 24fps frames.

That's simple frame duplication, the fact that it's in a 2-2 pattern at 48Hz instead of 1-1 pattern at 24Hz is a limitation of the technology, the result is nearly the though, 24 distinct frames per second.

Quote:


I think that Delerue is mixing the terms deinterlace, framerateconversion and Inverse Telecine in a way that makes it hard to get your true meaning at times. If you are processing a true 24p movie for display on a 60p screen, there is no deinterlacing involved.

I agree, there's no deinterlacing of film-sourced material, only Inverse Telecine and frame rate conversion.
post #16 of 123
Quote:
Originally Posted by stanger89 View Post

Interpolation is the most accurate term to use, it's the generation of intermediate data (frames) based on data around it (other frames). Yes, it does use motion estimation to do it.

whatever rock your boat, but I think that most readers will interpret "interpolation" in this context as a simple linear interpolation between each pixel of frame N and N-1 (blend).

-k
post #17 of 123
I seriously doubt that a director, who is "directing" during the filming (live action), setting moods and overall feel is considering what the 24fps will do to what he is seeing with his eyes as he directs it all. The 24fps effect is seen and "possibly" utilized by the editor. The director again sees what the editor has put together and now sees what 24fps has done to his work. For all we know, he laments "look what that f*&$%ing 24fps has done to my film !!!"

post #18 of 123
/gets popcorn.
/loves holy wars
post #19 of 123
Thread Starter 
Quote:
Originally Posted by knutinh View Post

DNM, as I have understood it, is not at simple "interpolation" of frames, rather, it is based on motion estimation. If the estimation works, chances are good that the resulting image will be closer to the physical reality, but if it dont...

Yeah. You're right. I already know it. Sorry if I can't make myself clear. You know my 'little' problem writing in english.

But what I think about DNM is that it doesn't make mistakes in motion estimation. Well, I haven't see it until now (except for the WinDVD bugs, I mean, hehehe).

Quote:
Originally Posted by knutinh View Post

Movi theaters use frame-repeat to avoid flickering, so they too are "processing" the raw 24fps frames.

I think that movie theaters still have problems. One is the already talked 24 not enough FPS. The second is that you have to close the shutter too many times to avoid the seeing of each frame transition, and this process causes some flicker.

Quote:
Originally Posted by knutinh View Post

I think that Delerue is mixing the terms deinterlace, framerateconversion and Inverse Telecine in a way that makes it hard to get your true meaning at times. If you are processing a true 24p movie for display on a 60p screen, there is no deinterlacing involved.

Well, I think that we all know that deinterlacing has nothing to do with the FPS of a movie. What I'm saying is that TrimensionDNM solves two problems (in my point of view): increase the FPS (with real new FPS, created by motion estimation) and avoid the jerky motion that occurs when the TV/monitor has a refresh rate higher than the framerate (because DNM sets the FPS to be equal to the refresh rate).
post #20 of 123
Thread Starter 
Quote:
Originally Posted by stanger89 View Post

Only because of the dichotomy between film and normal TV framerates. If you've got a display that can do 24n Hz (ie 48, 72), then you won't have that problem.

I think you aren't completely right. What I know is that repeat a frame causes jerky motion. And, wow, a CRT display that run at 24 Hz will blind everyone.

Quote:
Originally Posted by stanger89 View Post

Do you see the "problem" in the theater?

See what I said to knutinh.

Quote:
Originally Posted by stanger89 View Post

On a technical level, I agree.

Cool.

Quote:
Originally Posted by stanger89 View Post

What I'm saying is that for whatever reason (maybe economics, maybe convention) they make the movie at 24fps.

Because of that, all the choices they make, things like exposure, etc, are based on that basic fact that the film will be shot and presented at 24fps. I think you'll agree that DNM changes more than just the framerate.

Hmmmm... DNM only increases the FPS through the motion estimation tecnology. Everything else is only a matter of subjective interpretation, no? I can't see DNM changing exposure or lighting. Do you?

Quote:
Originally Posted by stanger89 View Post

That's not necessarilly the goal of a film.

Yeah. You're right. But now you know that this isn't the main reason why a movie is filmed at 24 FPS.


Quote:
Originally Posted by stanger89 View Post

There's no lost data, 24fps is how it was shot, and 24fps is how it's meant to be presented. I don't disagree that 60fps is more fluid than 24fps, that it's more real. But films have a certain look, partially due to their framerate, and DNM changes that look.

Lose data when compared to the reality. You can say the same thing about sound. Imagine a film that can't record nothing below 1 KHz and nothing above 15 KHz. It'll be a piece of s... Let's be honest and agree that 24 FPS isn't really a choice. If common people could perceive 60 FPS, and the increase of the frame rate wouldn't so difficult (expensive), it'll be done in almost all movies.
post #21 of 123
Thread Starter 
Quote:
Originally Posted by jimwhite View Post

I seriously doubt that a director, who is "directing" during the filming (live action), setting moods and overall feel is considering what the 24fps will do to what he is seeing with his eyes as he directs it all. The 24fps effect is seen and "possibly" utilized by the editor. The director again sees what the editor has put together and now sees what 24fps has done to his work. For all we know, he laments "look what that f*&$%ing 24fps has done to my film !!!"


Hehehehe. Yeah. I studied Cinema for almost four years, and, believe me, I never saw a single discussion about the actual frame rate. Not even a teacher or a text saying something about it. I also met a few directors and talk about this issue, but they haven't enough information to tell something solid.

BTW, maybe you wanted to say 'for all we know, he didn't lament', no?
post #22 of 123
Quote:
Originally Posted by Delerue View Post

Hmmmm... DNM only increases the FPS through the motion estimation tecnology. Everything else is only a matter of subjective interpretation, no? I can't see DNM changing exposure or lighting. Do you?

It does appear to change the apparent exposure. Eg stuff that used a very short exposure gets "smoothed" together and appears less "discrete", and the reverse with longer exposure stuff.

And it can make special effects stick out like sore thumbs.

Take for instance Saving Private Ryan, when WinDVD originally came out with DNM I was excited because DNM is really cool (technically). I watched clips here and there, and the way it makes everything silky-smooth is very neat.

So I sat down to watch a movie with it, SPR. The opening scene, in the cemetery, it was really amazing what DNM did there. At that point, and were that my only exposure to DNM, I'd have probably been sold on it.

But then there was the landing, the famous opening battle. DNM absolutely ruined it. Firstly all the special effects, the bullets hitting the water, the bullets that are absolutely convincing when normally watching the movie, looked like they were just haphazardly added by some inexperienced computer graphics student.

The whole scene was just, wrong. It didn't look like SPR any more. That odd, surreal, "picture show" look was completely gone.

Argue what you want about whether 24 fps is enough or not (which is really a different issue), but I think Steven Spielberg intended for those battle scenes to have that surreal look, and I don't think Industrial Light and Magic intended the CG effects to look hokey.

Give it a try sometime, watch the oppening battle of SPR with DNM on and off, and tell us if you think there's something fundamentally different between the two.

Quote:
Lose data when compared to the reality. You can say the same thing about sound. Imagine a film that can't record nothing below 1 KHz and nothing above 15 KHz. It'll be a piece of s... Let's be honest and agree that 24 FPS isn't really a choice. If common people could perceive 60 FPS, and the increase of the frame rate wouldn't so difficult (expensive), it'll be done in almost all movies.

I have no problem with 60fps, if they start shooting movies in 60fps, great. But I question if there's something important lost/changed in the conversion from 24fps to 60fps by an algorithm. I've tried DNM on several types of media, and beyond the technical "cool" factor, it changes something, and I prefer to watch the movie as it was shot, approved, and released.
post #23 of 123
Thread Starter 
Quote:
Originally Posted by stanger89 View Post

EVERYTHING

Man, I promisse that I'll get the 'Saving Private Ryan' in DVD to test with TrimensionDNM. After that I'll come here to tell my impressions (maybe with some samples). Thanks for you patience.

[]'s!
post #24 of 123
Delerue,

Keep up the fight, you're doing a great job. I've fought this battle and have decided it's just not worth it anymore. Search my username (might have to go to archives) for some interesting debates a couple of years ago.

One day directors will have higher frame rates available and people will accept the fact that it is more natural. Then 24fps will just look "old".

Note that the newest version of Trimension DNM (in WinDVD 7) is vastly improved over the original DNM in regards to artifacts. A few problems remain including implementation of "auto masking", and possibly some of the things you point out. I'll have to check the titles you mention but what you describe could be a layer change, or a CPU without enough power.

I have been in contact with a couple of high-level product managers that work on Trimension (one at Philips, who created Trimension, and one at Intervideo). PM me a list of your comments/concerns and I'll try to forward them on for you.

Paul
post #25 of 123
Quote:
Originally Posted by pkarmouche View Post

One day directors will have higher frame rates available and people will accept the fact that it is more natural.

Nobody disputes that.
post #26 of 123
Thread Starter 
Quote:
Originally Posted by pkarmouche View Post

Keep up the fight, you're doing a great job. I've fought this battle and have decided it's just not worth it anymore. Search my username (might have to go to archives) for some interesting debates a couple of years ago.

Thanks, man. I don't think that we're fighting here, but I'll do that search, for sure.

Quote:
Originally Posted by pkarmouche View Post

One day directors will have higher frame rates available and people will accept the fact that it is more natural. Then 24fps will just look "old".

Well, besides the fact that the 24 FPS are the standard model for so many years, we have to remember that the Cinema already increased the FPS. In the first begining of this science, 12 FPS was the highest framerate possible, then 16-18 FPS, and so 24 FPS, that we have today. Maybe one day it'll change, I agree. But we have to remember that the actual framerate are very close to what the common people can perceive. Have you tried to show the difference between 30 and 60 FPS to common people (that are not familiar with games, overclocks, video tecnology, army planes, etc.)? Well, I tried, and the result was very frustrating, because most of these people swear to me that there's no difference. IMO, this fact is the main reason why TrimensionDNM and similar tecnologies don't make a incredible sucess. The other reason is that not everyone like it, even knowing and seeing it (as we can see here).

Quote:
Originally Posted by pkarmouche View Post

Note that the newest version of Trimension DNM (in WinDVD 7) is vastly improved over the original DNM in regards to artifacts. A few problems remain including implementation of "auto masking", and possibly some of the things you point out. I'll have to check the titles you mention but what you describe could be a layer change, or a CPU without enough power.

Hmmmm... I don't think that the problem has anything to do with my CPU, because I have a Sempron 3000+ overclocked to real 2.6 Ghz. TrimensionDNM never uses more than 50% of this processor. And I already tested with other machines. So, my vote goes to the layer problem.

Quote:
Originally Posted by pkarmouche View Post

I have been in contact with a couple of high-level product managers that work on Trimension (one at Philips, who created Trimension, and one at Intervideo). PM me a list of your comments/concerns and I'll try to forward them on for you.

I can write the problems that I see in TrimensionDNM, but I think that I already do it in the first post. But, anyway, I'll write a PM to you just to make it really clear.

[]'s!
post #27 of 123
The new digital cinemas (DCI) actually supports 48fps, and since many new movies are shot digitally or even rendered, those rates may be closer than we believe.

Sony has claimed that the PS3 will make way for 100fps+ framerates in games but also movies. I dunno what they mean.

Weve got HD (High Definition) and HDR (High Dynamic Range) my bet is that the next will be HFR (High Frame Rate). What we need is large consumerdisplays capable of those rates. Some lcd-makers (Samsung) have announced "120Hz" lcd-tvs but sadly, that is only internally, they wont accept morethan 60fps at its terminals.

TV stuff will be increasingly shot in 50p/60p - a great improvement from interlaced technology.

http://www.100fps.com/how_many_frame...humans_see.htm

Motion estimation is only so good. Remember that as long as the shutter-time is any shorter than 1/fps, data is actually thrown away. The world does not always behave in the simple linear way that we poor humans think when we make rules for a dsp algorithm. The demo for trimension use the very simplest example of pure 2-d translatory motion. How about a rotating object such as a globe or the classic wagon-wheel? Some objects simply does not obey simple movement rules, such as an explosion, a fire, rain falling down blending with static background, etc.

If Philips have _perfectly_ solved the inversion of 2d video to segmented object movement, they have effectively solved 30 year standing problems in machine-vision, video-compression etc. They are clever those philips guys, but i think not that clever.

Object Based Segmentation of Video Using Color, Motion and Spatial Information,
http://www.cs.ucf.edu/~khan/video-segmentation.htm

Basically, when all the tech stuff is brought to the table, what you are argueing is subjective opinion. It is impossible for one human to decide what is subjectively better for another...

-k
post #28 of 123
Downloaded WINDVD 8 trial version to Demo TrimensionDNM and it appears to be disabled with no way of selecting it.
Ran one of the test videos from the phillips site and it plays it no better than PowerDVD.
Would appreciate it if you upload it to your server Delerue, I am keen to see what sort of improvements it can make to fast moving action scenes.
post #29 of 123
Quote:
Originally Posted by mikec6162 View Post

Downloaded WINDVD 8 trial version to Demo TrimensionDNM and it appears to be disabled with no way of selecting it.

Turn hardware acceleration off. You might want to change your refresh rate to 60hz.

Paul
post #30 of 123
ok tried disable hardware acceleration + was already set to 60 hz.
No change.
I watched the executable demo of the phillips site- it seems impressive but I would like to see it on an independent dvd
Windvd trial has a demo clip built in you can try which is the coral clip from the phillips site- but the results are not impressive. It also has the option of enabling a split screen so you can watch what difference it makes on any movie.
However this is not accessible with the demo version.
Seems a bit strange- you would think they would want to impress people so they will buy the registered version.
I quite like the program itself, colours & sharpness seem to be better than PowerDVD. Shame you have to download an unregistered copy to see it at its best.

I read somewhere that Nvidias Purevideo has motion estimation. Anybody tried it?
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