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PostPosted: Thu Jun 04, 2015 12:22 pm 

Joined: Thu Jun 04, 2015 12:02 pm
Posts: 1
hello to all;
I'm sorry if my english is not corret, i'm italian, ahaha.
I have one question. someone know how we get the quaternions as derived from Kinect?I'm doing a research from these quaternions.
from Kinect i extract four number and i don't know as are obtained.
I insert one example in Excel, in Yellow are quaternions. How are obtained???

one example below:

Quaternion
X_LowerSpine Y_LowerSpine Z_LowerSpine
-0,0371529 0,00022319 0,00600413
-0,0367362 0,00879774 0,00393431
-0,0410114 0,000950605 0,00204079
-0,0407975 -0,00184885 0,00160315
-0,0333212 -0,00962406 0,000175437
-0,029634 -0,0198281 -0,00476966
-0,0292089 -0,00819784 -0,0115912


thank you


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PostPosted: Fri Jul 10, 2015 12:09 am 
iPi Soft

Joined: Thu Apr 09, 2009 6:44 am
Posts: 154
These are not quaternions (which are rotations), but coordinates of the joint.
iPi Biomech Add-on allows to extrackt motion data in different formats, including quaternions:
http://docs.ipisoft.com/iPi_Biomech_Add-on
Students are eligible to 30% academic discount.

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