[Retracted] The System Research and Implementation for Autorecognition of the Ship Draft via the UAV

Table 1

Parameters of existing draft reading methods.

Contrast parameters	Artificial observation	Pressure sensor detection	Sonar detection	Traditional image recognition technology detection	Deep learning model detection
Detection accuracy	Average	Higher	Higher	Low	Higher
Maintenance cost	Lower	Higher	Higher	Average	Average
Distance from the ship	Average	Unreachable	Higher	Higher	Higher
Human resources	Higher	Low	Low	Low	Low