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 [ 3 posts ] 
 depthmap from multiple sources 
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One Eyed Hopeful

Joined: Thu Dec 12, 2013 11:33 am
Posts: 20
I have been experimenting creating stereoscopic 3D 360° panoramic video with a multicamera rig.
http://photocreations.ca/3D/mobius_camera_rig.html

I want the resulting video to rendered with depthmap to allow some 6DoF when viewed on HMD like the Rift.
Instead of using stereo pairs I want to evenly space the cameras pointing outward.
I plan on having enough overlap from the cameras that everything is captured at least 3 times.

What software options are available to automatically create a depthmap? Will they be able to work with spherical data?
I am afraid that the lack of synchronization on the cameras I am experimenting with might cause some bad results but want to know if it is doable?

When recreating stereo pairs using depthmap data that have objects in the foreground, a little bit of the background needs to be computer generated. Why not warp or compress the background a bit when creating the image. Then expand the background when viewing the image?
I see this being quite easy to implement with CG ray-traced graphics. Imagining the depth map having a gravitational pull when tracing the rays to create the image and doing the reverse when viewing it.

Harder to create from multiple images.


Thu Mar 20, 2014 11:46 pm
3D Angel Eyes (Moderator)
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Joined: Sat Apr 12, 2008 8:18 pm
Posts: 11394
I don't know of any off-the-shelf software that will do what you want.

There were several research projects/papers dealing with depth reconstruction from stereo images, you may want to look around and see if any of that code has been open-sourced. However, you'd still likely have to modify it heavily for your purposes.

Hope that helps.

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Fri Mar 21, 2014 9:34 pm
Petrif-Eyed
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Joined: Sat Jan 09, 2010 2:06 pm
Posts: 2255
Location: Perpignan, France
j1vvy wrote:
What software options are available to automatically create a depthmap? Will they be able to work with spherical data?
You can try this one, but it's for stereo pairs :
http://3dstereophoto.blogspot.fr/p/software.html


Fri Mar 21, 2014 11:43 pm
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