Extracting Vehicle Trajectories Using Unmanned Aerial Vehicles in Congested Traffic Conditions

Table 1

Description of video datasets.

Video	Site Locations	Number of Lanes	Spatial Range	Size of Vehicles	Traffic Density	Mean Speed	Lighting Condition
Test-Video 1	Korea Expressway No. 1	Four Lanes +; Bus Exclusive Lane	188 m	40×91 pixels	50.2 veh/km/; lane	22.3 km/h	Cloudy After Sunrise
Test-Video 2	Korea Expressway No. 120	Four Lanes +; Entry and Exit Lane	137 m	60×132 pixels	56.1 veh/km/; lane	20.8 km/h	Clear Before Sunrise