The Phantom 4 has a VPU.

[PrecisionAeroworks]

Apparently the P4 has a Vision Processing Unit. Cool.
The chipmaker behind Google’s project Tango is powering DJI’s autonomous drone

 

[alokbhargava]

Interesting!

Thanks for sharing.

 

[nhoover]

Yes very nice!

 

[ianwood]

That's how your object avoidance is working.