It's been many years since I saw graffiti high up on buildings, under bridges and other such inaccessible places and speculated we would see the place being uglyfied by quad copters one day.
I guess that day has finally come. I hope the kids that do this get long prison sentences
yeah.. all these street art must disappear, including the people making still a living out of guiding tourists here through the city to show them some of the classics which still exist.. Guess what, most of those pictures were painted illegally back then and now, even some conservative politics here acknowledge that this makes the city a nicer place to be.
Some of those artists even get payed now to paint walls legally.. What a world, we should sent them all to jail.
Btw. you don't need a drone to get high ugly pictures on buildings and walls.. A fire extinguisher filled with ink and re-pressured will do it as well. Indeed IMO those look mostly ugly as well.. So we might see better results by using drones who knows.
Back to topic:
IMO, probably none. Drone control needs realtime capacities which can't be accomplished by most SBCs. There are drone projects, where a HAT with a mcu does the real time heavy lifting and the RPi's computational power is used for 'scripted' flying, e.g there are python based ones. https://dojofordrones.com/raspberry-pi-drone/
). SBCs with a PRU (e.g. beagle bone) might do it without any support.
But the drone video you show looks IMO more like a 3d printer which gets pressured to the wall with some help of a fan.. So I'm not sure that this is actually how it should be built.