capital wrote:
1) Is there a specific problem to prevent placing the kinect at sideways?
Not sure what you mean by 'sideways'. Do you mean at 90 degrees? If so, this is one of the suggested 'ideal' setups for dual Kinects. The other suggested 'ideal' setup would be to place them at 180 degrees. My feeling is that the actual ideal configuration is
probably somewhere in-between for reasons explained below.
Quote:
2) Two kinects at the front, what is the benefit? Because I think one is enough to capture the front? I don't get it.
By 'front', I'm talking about placing both in front at 90 degrees angles, not both cameras directly in front of the actor. 90 degrees gives iPi DMC fairly wide coverage but it also gives the volume generation process some 'data overlap' which may improve precision. That's my theory anyway.
Quote:
3) So you mean one at front and the other at back will give a 360 degree good rendering? e.g. would like to do a run, some dances...etc. right now doing with one kinect won't work.
Yes, in theory this gives you almost full coverage. But setting the Kinects this way, you also lose that 'data overlap' mentioned above, so it's possible that you may lose some precision. Well, it's a possible tradeoff anyway; to be honest, I haven't done a comparison yet. Motion capture using Kinect is still somewhat experimental so I suggest you try both configurations (and perhaps others) to see which works best for you.
FWIW, I find that the 90 degree set up still allows you to capture full 'turnaround' movements quite well. The 'chainsaw dance' sequence in
'Happy Box', for example, was shot with two Kinects placed in front, not at 180 degree, and it captured this motion just fine. (Actually, my Kinects were set at considerably less than 90 degrees because of limited space but this still worked well for me--it was much, much better than using single Kinect anyway.)
Hope this helps.
G.
