Wearable inertial sensor based motion capture system

Hello,

I am working on a human body motion capture system based on wearable IMUs (MPU6050), I hope there is away to develop the entire system from acquiring the measurements from all the sensors through bluetooth to 3D modeling the human body that visualises the movements of the person in real-time.

So far I can read in the gyro and acceleration values of the the sensors then fuse the data to get the euler angles and quaternions values. Being able to kind of determine the orientations of the single sensors.

I got stuck at the the logic of transforming the movements to the 3D model's movements. For instant, the relative movements between the forearm and arm connected bu the elbow or arm and the chest connected through shoulder.

Any advise or help would be enormously appreciated.

Best Regards.

Khoi Nguyen Trieu