Follow-up on Multiple Kinects

Video summarizing my current opinions on how one could have multiple Kinect devices capturing in the same space at the same time, summarizing the ongoing discussion in the comment threads.

Also a shameless plug for my "official" YouTube channel, spelunkerucd. Check it out if you want to see the kind of stuff that might come to your living rooms in a few years or so.

http://www.youtube.com/user/spelunkerucd

Category:

Science & Technology

Tags:

• Xbox
• Kinect
• 3D
• video
• capture
• multiple
• merging
• multiplexing
• interference
• yt3d:enable=true
• yt3d:swap=true

[jonkam10]

sorry, but red/cyan should be way more close together! I like your doom character 3d video, I would really like to understand how that works! I used motion tracking and stuff but didnt digg the results so far. Vielleicht sprichst du ja auch deutsch? peace

[okreylos]

@jonkam10 YouTube messed up the stereo on this one. It looked perfectly fine when I created it. :(

Regarding the game character: since the Kinect generates a real-time 3D model of an environment, it's straightforward to just drop additional CGI models into that. You just need to measure the 3D point where you want the model to appear.

[alexutubeutube]

Using multiple kinects adds noise to the depth measurement but can still be used for advanced processing.

Several kinects are used to detect and track people:

see video on youtube:

"Real-time People detection and tracking with multiple Kinect cameras"

[okreylos]

@alexutubeutube Yes, we've known that for a few days now. Check "2 Kinects 1 Box", /watch?v=5-w7UXCAUJE

[robvh2]

According to MagicJam on the KinectHacks(dot)net forum, you can run at least two Kinects simultaneously and they don't interfere with each other! Rather than work under the assumption that the patterns would interfere, he first tested the assumption. It's worth trying to see if you have the same experience!

[okreylos]

@robvh2 Oof, low blow! ;) Now I'll have to take the second Kinect to the lab and try it...

[okreylos]

@ILZProductions That's annoying, isn't it? But then you can turn it into a fun game of tracking down all the copies, adding up their views, and calculating how many people have really seen my stuff. :)

[ILZProductions]

whats lame is that copys of ur video has more views than ur own orginal uploads....

[Robots4Sale]

I want

To hire you, contact me

[diabolicobscurity]

couldnt you have one kinect sending the laser scan while the other is off and vise versa then there would be no interference between each other, then overlap the video with double frames to get a somewhat fluid video stream. Maybe even use more than 2 kinects and overlap images?

[TommyDelRay]

Okay two things I would think that if you had it set at a 150 maybe 160 degree angle you would be able to get a seemingly complete 3D image the trick of it would just to keep the main "Object" at the center of the two beems so that the object it self cancels them out. Also I don't know it it's where you made the video or the Kinect System it self but I noticed a UHF. Just pointing it out (maybe that's why they do the "Sound Test" so that it can cancel that out as well?

[TommyDelRay]

@jonkam10 Okay here I go (talking about things that I shouldn't know anything about due to lack of experience) However first things first if you have two of them hooked up at 140 degrees as long as you keep the focus objects in between the two it should render almost (if not completely 100% of the image) I would guess that only the back would be missing (though both sides would seem to be firm. Also listening to your video (not sure if it's cause of the Kinect or the place) there is UHF there.

[pandm2000]

You can use an LCD screen to shut camera and or laser. Therefore a current sent to the LCD can be used to block out light which is better than a mechanical shutter!

[breakerLemur]

I think the polarization-solution will be a problem, as I think the polarization will be destroyed when it reflects from any surface that doesn't have special polarization-conserving features such as a mirror.

[daligotee1225]

Commenting on the polarization idea, you would be able to have three kinects all normal to each other.

[moogmanXanders]

looks like the money for nothing video 

[lifeofacraphead]

is this guy dutch?