This is the first question.
In the body tracking sample you provided, you used monorrig. Can I also do body tracking with steorrig?
Is there any particular reason why you made a body tracking sample using monorig?
If body tracking is also available with stereorig, would body tracking recognition rate be better than monorig?
The second one is
I’m working with Unity with zed streaming built in c++ using jetson NANO. I’m running zed streaming as a starting service on Jetson. However, sometimes there is a fail issue when running the streaming sender on jetson. Is there a similar case or is there a reason for this error?
Hi @hyunsoo,
Welcome to the Stereolabs forums 
For your first question, there is no particular reason apart from the fact that most users do not use the body tracking with AR passthrough, however, the body tracking feature is also available with the Stereo-Rig.
Without more context, it is hard to tell what may be the problem - maybe the camera is not detected, maybe the connection is not able to be made between the Jetson and the host PC.
oh then you mean there is no difference between mono and stereo on body tracking recognition ?
Hi @hyunsoo,
You can find here a description of the difference between mono and stereo rig: Key Concepts & Scripts - Stereolabs
In all cases, the ZED SDK will be using its stereo algorithms to compute depth, detection of bodies, etc. The Stereo Rig in Unity only enables the AR passthrough functionalities.
So in your case, there is no difference in the result in body tracking whether you select mono or stereo rig.