Get 3D Position Data of Motive Skeleton Parts

[itkyodo]

Hi,

Is there any way to get specific data of 3D positions of Motive Baseline skeleton body parts or joints (ex. shoulder, neck, elbow, etc.)?

Currently I use a ToF depth camera together with OptiTrack to get a data set of body movements. What I want to do is mapping Motive skeleton positions onto the image acquired by the camera. So I need to get 3D positions of skeleton body parts in order to pass them onto another program written in C++.

However, unfortunately, our lab only has Motive:Track and Motive:Edit licenses, so I assume I cannot use NatNet SDK to retrieve the skeleton information via data streaming.

I tried to export CSV from Motive:Edit (after creating and trajectorizing skeleton), but exported file only contained:
- Rotations of all parts
- 3D Position data of "Hip" part only

Probably they are sufficient in terms of animating 3D characters, but not for my purpose.

After all, my question is:
- Could I get 3D positions of all skeleton parts from Motive?
- Does Motive offer the length of skeleton bones so that the positions can be calculated by using rotations of joints?
- Otherwise, is there any third party software plugin that offers such functions?

Thanks.
itkyodo

[NaturalPoint-Dustin]

Hi Itkyodo,

I will have a developer answer this question as soon as possible. I might be able to get a faster response if you create a ticket with us at help.naturalpoint.com.

In the meantime, our NatNet SDK user guide is full of information on what can be streamed. Here is the link:

http://www.naturalpoint.com/optitrack/s ... 0Guide.pdf