UAV	Unmanned aerial vehicle
DOF	Degrees of freedom
R-CNN	Region-based convolutional neuronal network
SSD	Single shot multibox detector
GPS	Global positioning system
CNN	Convolutional neuronal network
PLA	Polylactic acid
CAD	Computer-aided design
CNN	Convolutional neuronal network
PBVS	Position-based visual servoing
HSV	Hue, saturation, value
ENU	East–north–up