[Question] Connecting a Raspberry Pi to a Omnibus F4?

I am planning to build and code an autonomous drone using PX4 and would like to do vision processing on a pi and communicate to the FC data to align to a target or object. Is it possible to communicate using mavlink between a Raspberry Pi or other controller to a Omnibus F4? Thank you! via /r/drones http://bit.ly/2Wd019X