Act i alpr server 1 user’s manual – ACTi ALPR Server 1 V1.0.1 User Manual
Page 27
ACT
i ALPR Server 1 User’s Manual
To start setting up your License Plate Recognition algorithm, follow the steps below:
1.
Adjust the
LPR Property Settings
to get the most optimal results:
Property
Description
Default
Country
Used as reference only. Allows you to choose from a
predetermined list of countries, to increase the accuracy
of recognition results.
Taiwan
Enable
Enables
LPR
algorithm.
Enabled
Maximum
Car Plate
Height
Set the
maximum height
(1-120 pixels) of any license
plate to be recognized. Any license plate whose height is
larger than this value will be ignored. The
Maximum
Plate Size Reference Frame
(found in the bottom left
corner of the
Live View Display
) provides visual
reference for the value selected. The ratio between
Maximum Car Plate Height
and
Minimum Car Plate
Height
should be as close to 2 as possible.
25
Maximum
Car Plate
Width
Set the
maximum width
(1-160 pixels) of any license
plate to be recognized. Any license plate whose width is
larger than this value will be ignored. The
Maximum
Plate Size Reference Frame
(found in the bottom left
corner of the
Live View Display
) provides visual
reference for the value selected. The ratio between
Maximum Car Plate Width
and
Minimum Car Plate
Width
should be as close to 2 as possible.
50
Minimum
Car Plate
Height
Set the
minimum height
(1-120 pixels) of any license
plate to be recognized. Any license plate whose height is
smaller than this value will be ignored. The
Minimum
Plate Size Reference Frame
(found in the bottom left
corner of the
Live View Display
) provides visual
reference for the value selected. The ratio between
Maximum Car Plate Height
and
Minimum Car Plate
Height
should be as close to 2 as possible.
16
Minimum
Car Plate
Width
Set the
minimum width
(1-160 pixels) of any license
plate to be recognized. Any license plate whose width is
smaller than this value will be ignored. The
Minimum
Plate Size Reference Frame
(found in the bottom left
corner of the
Live View Display
) provides visual
reference for the value selected. The ratio between
Maximum Car Plate Width
and
Minimum Car Plate
Width
should be as close to 2 as possible.
15
Post-buffer
Time
Set the amount of time (in seconds) that video footage
will be recorded
after
a license plate is recognized.
5
Pre-buffer
Time
Set the amount of time (in seconds) that video footage
will be recorded
before
a license plate is recognized.
5