The settings panel of the LPR channel object

№

Parameter name

Method of setting the parameter value

Description

Representation

Default value

Value range

2

Select cameras group

LP recognition

Select the value from the drop-down list

Main video camera for license plate recognition

List of available Camera objects

Camera 1

Depending on the number of available Camera objects

Synchronous shooting

Select the value from the drop-down list

Additional video camera operating together with the main camera

List of available Camera objects

None

Depending on the number of available Camera objects

Automatic recording 

Set the checkbox

Enabling the automatic recording on the LP number recognition

Boolean

No

Yes—automatic recording enabled,

No—automatic recording disabled

Automatic recording, s 

Enter the value in the text field

Setting the auto recording duration (in seconds)

Seconds

10

0-86400

Process half frame

Set the checkbox

Specifying the frame processing setting

Boolean

Yes

Yes—smaller frame is stretched, larger frame is cropped

No—smaller frame is stretched, larger frame is processed unchanged

Select the value from the drop-down list

Enabling and disabling LP recognition by main motion detection or by macros

Disabled—LPR channel continuously scans the video image.

By macros—enables LP recognition by macros. When you select this option, the Entrance and Exit drop-down lists become available.

Motion detection—enables LP recognition by motion detection. Used to reduce the load on the server. It works differently depending on the selected recognizer mode.

For normal mode:

Yes—if the camera is armed, the LPR channel scans all video images until the basic motion detection of Axxon PSIM is in the Alarm mode. If the camera is not armed, the LPR doesn't work, but manual start using scripts is available (see item 6 in Scripts used in the Auto PSIM software package). Recognition will process frames until the stop command will be given.

For Parking mode:

If the camera is armed, the LPR channel scans all video images, until the plate will be recognized, after it recognition stops even if the Alarm mode is still in process and procedure repeats when the new trigger of alarm is activated; if the camera is not armed, the LPR doesn't work, but manual start using scripts is available (see item 6 in Scripts used in the Auto PSIM software package). Recognition will process frames until the plate will be recognized and then will stop before new manual start

Depending on the number of created macros

Depending on the number of created macros

Area search threshold 

Available for:

• AUTO-Uragan,
• IV

Enter the value in the text field

Detecting zone sensitivity

Number

60

0-100

Max. width

Available for:

• AUTO-Uragan,
• IV,
• Taiwan,
• VT

Enter the value in the text field

Maximum available width of license plate

Percentage of frame width

21

0-100

Max. height

Available for:

• AUTO-Uragan,
• IV

Enter the value in the text field

Maximum available height of license plate

Percentage of frame height

9

0-100

Button X

Available for:

• AUTO-Uragan,
• IV

Click the button

Access to the interactive interface of setting the area width and height

-

-

-

Min. width 

Available for:

• AUTO-Uragan,
• IV,
• Taiwan,
• VT

Enter the value in the text field

Minimum available width of license plate

Percentage of frame width

-

0-100

Min. height

Available for:

• AUTO-Uragan,
• IV

Enter the value in the text field

Minimum available height of license plate

Percentage of frame width

-

0-100

Button X

Available for:

• AUTO-Uragan,
• IV

Click the button

Access to the interactive interface of setting the area width and height

-

-

-

Cut image with vehicle 

Available for:

• AUTO-Uragan,
• BRS,
• AR-Auto,
• IV,
• Remote recognition,
• RR,
• Taiwan,
• VT

Set the checkbox

Set up the detection settings to the image with a car

Boolean

No

Yes—frame with a vehicle is cut

No—frame with a vehicle is not cut

Allow recognition by request

Available for:

• AR-Auto,
• RR,
• VT,
• Taiwan,
• AR-Railway

Yes—on-demand image recognition is enabled

No—on-demand image recognition is disabled

Enabling the option of the LP number search area boundaries setting

Yes—the option of the LP number search area boundaries setting is enabled

No—the option of the LP number search area boundaries setting is disabled

Depending on the number of available graphics cards.

Do not use—possibility of using a graphics card is disabled. The default value

Default device—all available graphics cards will be used during recognition

Intel GPU—NVIDIA GPU integrated graphics card will be used during recognition

by LP position—the direction is determined by the position of the upper part of the LP number. If the upper part of the LP number at the start of tracking is lower than the upper part of the LP number at the end of tracking, then the direction is defined as From the camera, otherwise — To the camera.

by LP area—the direction is determined by the license plate area. If the LP area at the start of tracking is larger than the LP area at the end of tracking, then the direction is defined as From the camera, otherwise—To the camera.

by SDK—the direction is determined by the SDK. Currently, the following LP recognition modules support this mode: RR, VT, AUTO-Uragan, IV

Direction

Available for:

• AUTO-Uragan,
• BRS,
• Remote recognition,
• RR,
• Taiwan,
• VT,
• RIDR IV,
• CIDR IV

Select the value from the drop-down list

Sets the traffic direction to detect the LP numbers

List 

any

Any—the direction of movement from the video camera or towards the video camera

From the camera—the direction of movement from the video camera

To the camera—the direction of movement towards the video camera

For the RIDR IV and CIDR IV modules, the direction of carriage movement in the camera view is selected from left to right or from right to left

Undefined

Available for:

• ARENA,
• AUTO-Uragan,
• BRS,
• AR-Auto,
• Remote recognition,
• RR,
• Taiwan,
• VT,
• RIDR IV,
• CIDR IV

Yes—if it is impossible to determine the direction of vehicle movement, the direction is displayed as Undefined

No—if it is impossible to determine the direction of vehicle movement, the direction is not determined

Record violation

Only used when direction is selected in the Direction list (To the camera/From the camera)

Set the checkbox

Enables event generating in case of vehicle entering an oncoming lane

Boolean

Yes

Yes—in case if the direction of vehicle moving is not coincide with the specified in the Direction list, the Entered the oncoming lane alarm event will be created

No—the Entered the oncoming lane alarm event is not created

Entrance

Set the checkbox

Enables the recording of the vehicle movement direction as Entrance to the territory

Boolean

No

Yes—LPR channel for the recognized license plates records the direction of vehicle movement as Entrance to the territory

No—LPR channel for the recognized license plates doesn't record the direction of vehicle movement as Entrance to the territory

Note. This setting is taken into account in the WEB Report System PSIM when working with the AUTO reports (see WEB Report System PSIM. User Guide)

Record frames to SQL DB

Set the checkbox

Saves video frames of vehicle's recognized number into SQL DB

Boolean

Yes

Yes—the frame with a vehicle is saved into the database

No—the frame with a vehicle is not saved into the database

Show captions

Set the checkbox

Enables the LP number titles overlaid with the video image while making report about the recognized number

Boolean

Yes

Yes—captions overlay enabled.

No—captions overlay disabled

Deinterlace 

Set the checkbox

Enables de-interlacing of video frame with a vehicle when the image is received in full resolution

Boolean

No

Yes—de-interlacing of video frame with a vehicle is implemented

No—de-interlacing of video frame with a vehicle is not implemented

Ratio 4:3 

Set the checkbox

Sets the ratio 4:3 of video frame's width and height while making report about the recognized number

Boolean

Yes

Yes—video frame with a vehicle is displayed in ratio 4:3

No—initial ratio of the frame while making report about the recognized number is not changed

Archive size, days

Enter the value in the text field

Database archive depth

Days

30

0-5000

Speed camera settings 

Select the value from the drop-down list

Selects the speed camera to work together with the LPR channel

List of available Speed traps objects

Not specified

Depending on the number of available Speed traps objects

Synchronization time...ms

Enter the value in the text field

The time it takes the car to move from the point of speed detection by the Speed traps server module to the viewing zone of the camera

Milliseconds

Not specified

0-20000

Filter events from speed camera

Set the checkbox

Enables saving the first speed detected only

Boolean

No

Yes—only the first detected speed value is used, others are ignored until the delay expires or the number is recognized

No—all speed values are used

Get speed from video 

Available for:

• AUTO-Uragan,
• AR-Auto,
  
• VT,
• RR

Yes—vehicle speed is estimated by video, the results are displayed over video image as captions

No—vehicle speed is not estimated by video

Create frame caption

Unavailable for:

• External recognizer,
• AR-Railway,
• AR-Auto

Enables the automatic conversion of Latin characters into Cyrillic characters, if the license plate recognition module returns the recognized numbers in Latin characters. Enables the automatic conversion of Cyrillic characters into Latin characters, if the license plate recognition module returns the recognized numbers in Cyrillic characters

No character conversion—automatic conversion is disabled

Latin->Cyrillic— automatic conversion of Latin characters into Cyrillic characters is enabled

Cyrillic->Latin—automatic conversion of Cyrillic characters into Latin characters is enabled

Specifies the time period in seconds during which the repeated recognition of one captured license plate will be ignored by the system

Display result before vehicle leaves 

Available for:

• AUTO-Uragan,
• AR-Auto,
• VT

Set the checkbox

Enables the results to be displayed before the car leaves the viewing area

Boolean

Yes

Yes—the result is displayed before the vehicle leaves the frame (the license plate of the given vehicle is out of the license plate search boundaries)

No—the result is displayed only after the vehicle leaves the frame

Result display delay

Enter the value in the text field

The time delay between the first recognition of the LP number and displaying the results

Seconds

3

0-100

Recognition number threshold 

Enter the value in the text field

The number of reliable license plate recognitions, after which the recognition result is displayed

Number

2

0-1000