blendartrack

blendartrack is an augmented reality motion tracking toolset for blender.
with blendartrack you can easily track your environment - just move you device slowly, place some reference objects and you are ready to track. check out your work in the file browser and transfer the data to your desktop. import the data in blender and you'll receive a solved motion tracking.
press the switch icon to capture facial expressions. in blender you will receive an animated geometry after the import process.
the tracking data gets saved in .zips, which can be imported in the open source engine blender version 2.9 with the add-on retargeter: 
https://gum.co/tLEbZ