ipConfigure ESM 5.1
LPR Setup and Field Installation Guide
3
TESTING SCENARIOS
This describes the various speeds at which the vehicles were traveling and the angle of
the read relative to the camera field of view (FOV) from center as the vehicle passes
through the image. Distance testing was done from 50 feet to 150 feet. The ideal FOV
width, based on distance out from the camera, is 1 to 1.5 cars wide. This will give you
the required pixel count (200 pixels wide) of the plate data to run the application
correctly. The camera was mounted at a maximum of 10 feet above ground.
IDEAL FRAME RATE FOR TRAFFIC SCENARIOS
Based on the different scenarios relative to the FOV and the motion through that FOV,
this part defines the best Frames Per Second setting to use.
STOP SIGN – completely stopped
Dead on shot (Straight, no + or - from Camera FOV center):
5 frames per second, setup in Configuration Tool or ESM
Angle of read + or - 5° to 20° of Camera FOV center:
5 frames per second, setup in Configuration Tool or ESM
NOT COMING TO STOP – but motion through the frame
5 - 15 mph, dead on shot:
5 frames per second, setup in Configuration Tool or ESM
16 - 20 mph, dead on shot:
5 frames per second, setup in Configuration Tool or ESM
5 – 15 mph, angle of read + or - 5° to 20° of Camera FOV center:
5 frames per second, setup in Configuration Tool or ESM
16 – 20 mph, angle of read + or - 5° to 20° of Camera FOV center:
5 frames per second, setup in Configuration Tool or ESM
5 – 15 mph, angle of read + or - 21° to 30° of Camera FOV center:
5 frames per second, setup in Configuration Tool or ESM