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Kinect2 - Projector Calibration

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Re: Kinect2 - Projector Calibration

Postby ruvidan » Tue Jan 15, 2019 2:04 pm

I'm a little newer at TD. THis is amazing and I was able to accurately sync the skeleton to myself in real time. I guess my question is - how do I transmit this data into other work?

Would someone be able to create a very simple file that creates a circle TOP and then uses this projector calibration tox to align it to the right hand? I was able to successfully use it but wasn't sure how to integrate it. Thanks so much!
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Re: Kinect2 - Projector Calibration

Postby snaut » Thu Jan 17, 2019 4:08 pm

Hey,

there is a skeleton inside the network. Go to kinectCalibration/projectorView: There you will see a kinect CHOP called kinect1 which reads all the channels from a skeleton. Theoretically you can just select out the wrist channel and use the same network to do what you want. Optionally also just copy that section out into your own scene.

Best Markus
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Re: Kinect2 - Projector Calibration

Postby ruvidan » Fri Jan 18, 2019 9:10 pm

Thank you for your reply! Do you mean, copy the section from kinect1 to null2?

I don't know if you had a moment where you might be able to create a very quick file with this - maybe map the bannana to the right hand so after the calibration is complete, the bannana is following the hand? Just so I could reference and learn from it. I would super appreciate it if you could help with that.

If not, totally cool and I appreciate that this exists. Just trying to connect the dots that I'm missing to apply it properly.
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Re: Kinect2 - Projector Calibration

Postby ruvidan » Wed Jan 23, 2019 1:37 am

Or what I mean to ask. Once it's calibrated, you had said that it works as a camera. I was just wondering how to integrate it as such. I was assuming it would be able to track and put on my hands and it would keep it accurately on my hand even if I move on the z axis a little bit?

If you happen to have an example of it being used in such a way, or any example files that demonstrate using this tox file, it would really be helpful as I could analyze it! Thanks so much!
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Re: Kinect2 - Projector Calibration

Postby snaut » Mon Jan 28, 2019 3:52 pm

Posted a crucial fix where for builds 2018.27550 and upwards the resulting matrix had rows and columns switched creating a bad calibration result.

You can download the latest version from here: viewtopic.php?f=22&t=12895&p=49372#p49372

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Re: Kinect2 - Projector Calibration

Postby snaut » Mon Jan 28, 2019 4:02 pm

Hey,

here is a little example showing how you would use the Kinect Calibration Component as a Camera.

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kinectRightHandExample.toe
(21.94 KiB) Downloaded 59 times
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Re: Kinect2 - Projector Calibration

Postby knut » Mon Jan 28, 2019 5:54 pm

thnx for the new version. do I need to use the latest td version for that always or does it work for older versions also?
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Re: Kinect2 - Projector Calibration

Postby snaut » Mon Jan 28, 2019 6:08 pm

Hi Knut,

you will have to use 2018.27550 (latest official).

cheers
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Re: Kinect2 - Projector Calibration

Postby GertjanB » Thu Jan 31, 2019 10:47 am

Hi Snaut,

Thank you for this tool.

this was my first post but i found what i did wrong:
I got it to work once with the kinect on the projector. Now when I try different positions its not working. If I take a look inside wit the geoviewer: the camera is on the other side of the point cloud facing away from it the point cloud is and upside down. I tried different orientations and most of them are like this.

Is there a limitation of positions?
I've saved my last file here.
kinectRightHandExample in correct calibration.toe
(21.8 KiB) Downloaded 35 times

(The projector & kinect where on the same line, the projector was on eye level facing down, the kinect was on table hight facing straigt forward.)


My data points where to close together, now i went all over the place to get points and it worked.

Kind regards
Groeten
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