28 / 51
www.selea.com
NUMBER PLATE READING
General
Here you can adapt the operation of the
OCR
on board of the camera to your specific needs, taking however into account that
the default settings are those that Selea considers the most appropriate in most situations.
A
With the “flag” ticked, number plate reading is enabled. Otherwise the camera will work in video surveillance mode. It is
recommended that reading is disabled in case of system debugging.
B
Percentage confidence value for the recognition of the character analysed by the system
OCR
. In case of no recognition,
the
“~”
character is assigned. A maximum of two characters per number plate may not be recognised.
C
This sets the minimum number of characters of the captured reading for it to be considered a number plate. We remind
that the new Italian number plates have 7 digits (AA 123 BB).
D
This parameter is useful, for example, to discard number plates marginally framed in relation to the main search area (for
example to filter opposite lane front number plates, smaller in case of road check points).
E
If enabled, it excludes the reading of number plates on two rows (for example motorcycles or old off-road vehicle
number plates). It decreases the reading field, particularly when reading is only required for the front number plate.
F
It gives the possibility of avoiding the reading and forwarding of incomplete number plates that still exceed the
minimum set length, particularly when vehicles are travelling at slow speed, such as when crossing accesses. Before
sending the number plate, the camera waits for the last consecutive character to move away from the edge of the
framed area by a distance sufficient to assume that there will not be further characters that may be considered part of
the number plate during the analysis. However, this function also entails that even if complete, the number plate will
only be captured once it moves away from the image edge, as
iZero
waits for the possibility of further characters.
G
It identifies in a way other than
“UNREAD”
badly read number plates from advertising signs, or other captured items:
Summary of Contents for SELEA iZero
Page 1: ...iZero User Manual...
Page 47: ...47 51 www selea com...
Page 48: ...48 51 www selea com NOTES BY THE INSTALLER...
Page 49: ...49 51 www selea com...
