Real-Time 3D Monitoring ? Possible ?

D

dcmbeats

Member
hi there,

I'm just engaged in stereoscopic films within my diploma thesis and read more and more about autostereoscopic displays, developed by lot of companies like newsight, dimension technology, sunvay ...

What I would find very interesting is, to have real-time-3D-monitoring on location with such an autostereoscopic display while shooting.

But I didn't find something like a set-ready all-in-one-solution, to connect two cameras to one or maybe two computers, linked with one autostereoscopic display.

Most film production companies, I had contact with, work with two rectangular arranged displays and a semipermeable mirror, for viewing with glasses, but thats not a satisfying solution I think. - Especially if one wants to produce films for autostereoscopic displays it's possibly the best solution to shoot with an autosterescopic display as monitor.

What do you think ? Did you hear something about real-time solutions ?

Thanks a lot,

DCM
 
It depends how you are doing it, are you doing it anaglyphicaly with two colours or are you using polarised images and polarised glasses? If you are using polarising your are stuck with projecting it, as you need two seperate projectors. If you are doing it anaglyphicaly with two colours, theres definatly a way to do it. There was a demonstration at broadcast live in London, and they had two Z1s mounted side by side fed into a computer, and the computer outputted a anaglyphic red/blue image which was projected onto the wall and everyone in the room had 3D glasses and we could all see ourselves in 3D.

Dont forget though that your cameras lens centres need to be 65mm apart exactly to get a sharp 3D image.
 
hi,
my question was not, how to get monitoring with anaglyphical or polarised images but with autostereoscopic displays without any glasses.
any ideas ?
thanks, dcm
 
Well you have to seprate the images out so each eye sees a differnt image. This is what the glasses usualy do. You could do this with video glasses such as these:

http://www.nghobbies.com/cart/images/categories/Video_goggles.JPG

These glasses have two screens in them, one for each eye. You would have to hack them so you can send it two differnt video signals, but you could display 3D this way.

However you do it though, the viewer will always need something stuck on their face for this to work.
 
thanks hoarp001 ...
again: I'm not looking for a solution with glasses, but WITHOUT glasses ... hence the name: AUTOstereoscopic display
 
how can you know that ?!
"newsight" for example used two simple webcams to produce a real-time 3d picture (on a fair a few weeks ago, but of course they dont reveal anything about it)
 
Because for 3D to work, each eye needs to see a differnt image. If one eye sees the same image as the other eye, it will be a flat, 2D image.

You need to separate out what each eye sees, and polarising and coloured anaglyphic do this, either with the colour or the polarising. You can do 3D without polarising or anaglyphic but you need to use those video goggles and set it so each screen shows a differnt image.

Theres no way of showing each eye a differnt image without some kind of glasses setup going on.

Having said that there is a company in the UK that have developed a half 3D setup. They have made a mirror/glass projection system that appears to be 3D, but it only works in black and white , its more of a peppers ghost effect.
 
Actualy I have thought of a way. If you had each eyes image showing one after the other, so the frames go right eye, left eye

RLRLRLRLR etc

You could then tell the audience to open and close each eye in sync with the order the frames are shown. That would work.
 
maybe something like a binocular, one eyepiece shows one image and the other eye piece shows the other, the our brain interpretes it like real world and thus making the image 3d.
 
hoarp001 said:
Because for 3D to work, each eye needs to see a differnt image. If one eye sees the same image as the other eye, it will be a flat, 2D image.
Click to expand...

this is of course absolutely right.

hoarp001 said:
Theres no way of showing each eye a differnt image without some kind of glasses setup going on.
Click to expand...

I'm sorry, but you are apperantly informed wrong. in fact there are displays, that show a three-dimensional picture without forcing the user to wear glasses. there a even multiview displays, that allows a bigger number of people watch the 3D-picture at the same time.
see it here: http://www.sunvay.com/products/products_display.html
and here: http://www.newsight.com/3d-products/displays.html
and here: http://www.actkern.info/index.php?id=6
only to name a few. it should not be subject of this thread, how this displays work. you can read it e.g. here: http://en.wikipedia.org/wiki/Autostereoscopy

so back to my primary question. does anybody know a possibily to use this technology for monitoring while shooting stereo on location ?

thx a lot !
 
Mmm, interesting, i had not seen those before but :

' If the viewer positions their head in certain viewing positions, they will perceive a different image with each eye, giving a stereo image. Consequently, eye strain and headaches are usual side effects of long viewing exposure to autostereoscopic displays that use lenticular lens or parallax barriers. '

it sounds like you have to have your face clamped down to watch it properly, and it sounds as though only one perrson can see it at once. Its a pretty unfinished solution to 3D video.

Id rather wear glasses than have to carefuly hold my head in the same place....
 
hoarp001 said:
Mmm, interesting, i had not seen those before but :

it sounds like you have to have your face clamped down to watch it properly, and it sounds as though only one perrson can see it at once. Its a pretty unfinished solution to 3D video.
Click to expand...

in fact, there a differences between the manufacturer.
I read about displays that track the movement of your eyes by a little camera, that is in the display frame. so your movement can be compensated.
Other real multiview-displays shows the pictures for each eye in many directions, so there is no problem to move in front of the screen. there are only something like borders between the directions, where the picture seem to jump a little bit, but its very easy to adjust oneself to that.
it is absolutely easy and comfortably to watch this films, if - and thats the point - they are produced well.

and how to do that, I want to figure out !
 
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