detect & find rotation angle if the skeleton tracked has turned 180 degre to kinect

[sandy2511]

Hi,

I m developing an application using kinect.The IDE I use is Visual studio 2012 and kinect SDK 1.8.I m developing using vc++

I want to overlay an image on the person tracked when the person turns 180 degress to kinect. ie the person is not facing the kinect.

how do i track the rotation angle of the person as he/she turns away from kinect.

Regards,

Sandhya