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The LP numbers of passing vehicles are automatically identified recognized and subsequently shown in the LPR channeldisplayed in the Vehicle Tracer interface window. By default, the identified number recognized license plate is displayed after the vehicle leaves the camera viewing zoneFOV.

It is possible to display the vehicle number license plate on the screen before the vehicle leaves the frame frame only if you use the VT, AUTO-Uraganor CARMEN, AR-Auto, RR(including the RR vendor and model recognizer module) software modules are in use.

If To set up the LP number should be shown before the vehicle leaves the viewing zonedisplay of LP recognition results, do the following:

  1. Go to the Settings of LP processing tab on the settings panel of the  LPR channel object settings panel, corresponding to the activated module module (see Activating the program module, used for identifying the plates).

  2. Set the Display result before vehicle leaves checkbox (1) to show the result before the car actually leaves the viewing zone frame (more precisely, before the license plate leaves the recognition zone). If the checkbox is not set, the result will be shown only after the car actually leaves the zoneframe.

  3. In the Result display delay field (2), specify the time in seconds, after which the recognition result will be displayed. This period of time starts after the first LP recognition.

    Info
    titleNote.

    This parameter is enabled if the Display result before vehicle leaves checkbox checkbox is checkedset.


  4. In the Recognition number threshold field (3), specify the number of reliable license plate recognitions, upon reaching which the recognition result will be displayed. The recognition number counter is cumulative and is not reset in case of temporary loss of a given zone or false recognitions.

    Info
    titleNote.

    This parameter is enabled if the Display result before vehicle leaves checkbox checkbox is checkedset.


  5. Click Apply Click the Apply button (4).
    Info
    titleNote

    To save the changes, also click the Apply button on the settings panel of the corresponding software module.

The LP recognition results display is set up.

Info
titleNote
  1. If both Result display delay and Recognition number threshold fields are
set
  1. specified, the results will be
shown
  1. displayed upon the event that occurs first (either the Result display delay time elapses, or the Recognition number threshold is reached). If the values of these parameters are set to 0 or not set at all, then the parameters Result display delay and Recognition number threshold are not taken into account, and the LP recognition results will be
shown
  1. displayed after the vehicle leaves the viewing zone.
Info
titleNote.
  1. The Display result before vehicle leaves, Result display delay and Recognition number threshold parameters do not work with the Parking mode.

...

  1. When you use the VT software module, if the Display result before vehicle leaves parameter is enabled, the values of the fine-tuning parameters of SDK are also changed: VodiCTL_VPW_DYNAMIC_WITH_DUPLICATE is changed to True, VodiCTL_VPW_DYNAMIC_OUTPUT_TIMEOUT and VodiCTL_VPW_DYNAMIC_OUTPUT_FRAMECOUNT are changed according to the values in the Result display delay and Recognition number threshold fields. The opposite is also true: changes in the VodiCTL_VPW_DYNAMIC_WITH_DUPLICATE, VodiCTL_VPW_DYNAMIC_OUTPUT_TIMEOUT and VodiCTL_VPW_DYNAMIC_OUTPUT_FRAMECOUNT fine-tuning parameters of SDK are also displayed in the recognition channel settings. The value of the VodiCTL_VPW_DYNAMIC_OUTPUT_TIMEOUT parameter is rounded down to whole seconds (for details on fine-tuning, see Configuring the VT software module and The VT module object settings panel).