Configuring the character height to monitor multiple lanes - SharpV

Configuring SharpV camera to monitor multiple lanes Technote

Applies to
Last updated
Content type
Guides > Technotes
English (United States)

If you are using the roadside installation to monitor license plate reads from multiple lanes, you need to adjust the settings of the character height to improve the capture and read rates.


  1. Configure Sharp analytics:
    1. Log on to the Sharp Portal.
    2. From the Configuration menu, select Analytics > LPR settings.
    3. From the Zones menu, select Single lane.
      NOTE: The Dual lane option is to be selected only when the SharpV camera is installed on an overpass and a center line differentiating the lanes can be defined. For more information on how to configure Dual lane, see the SharpV Administrator Guide 12.8.
    4. Adjust the upper limit of the Character height slider range to 40 pixels.
    5. Click Save.
  2. Monitor the character height in the Last read section of the Camera feeds page.
    If a large number of the license plate reads have a character height less than 15 pixels, continue to the next step.
  3. Manually update the config file.
    IMPORTANT: As you would need to edit values in the main configuration file, it is advised to contact the Genetecâ„¢ Technical Support for further assistance.
    1. Logon to the Sharp Portal.
    2. From the Configuration menu, select Security.
    3. Click Enable for 1 hour.
    4. Connect to SharpV through Remote Desktop Connection on your current Windows machine.
      NOTE: If you do not have the credentials to logon to the SharpOS, contact Genetecâ„¢ Technical Support for further assistance.
    5. Open the Genetecâ„¢ SharpV Services Monitor from the SharpOS desktop.
    6. Click Platereader to stop services.
    7. On the SharpOS, open the D:\AutoVu\User.config file.
    8. Set the Min value in the LprCharacterHeight tag to 10.
    9. Set the OptimizeForCharacterHeight value to true.
    10. Click Save.
    11. Click Platereader to start services.