Please Read this documentions

https://learn.microsoft.com/en-us/previous-versions/windows/kinect/dn782033(v=ieb.10) https://github.com/OpenKinect https://openkinect.org/wiki/Main_Page https://github.com/cartzhang/Kinect4UE4Plugin https://lisajamhoury.medium.com/understanding-kinect-v2-joints-and-coordinate-system-4f4b90b9df16