Configure Automatic License Plate Recognition

Configure the Automatic License Plate Recognition video analytic for each camera that runs the video analytic.

  1. In the Symphony server configuration interface, click Devices > Cameras.
  2. Select the camera on which you want to run Automatic License Plate Recognition and click Edit.
  3. In the Add-Ons section, click the button beside Automatic License Plate Recognition to turn it on.
  4. Click the Configure button beside Automatic License Plate Recognition.
  5. In the Overview section, configure analysis options and select whether the advanced options are hidden (simple mode on) or visible (simple mode off).
  6. If the image in the Processing Mask and Plate Detection sections do not include an image that is suitable for license plate detection, update the image.
    1. Click Change Image.
    2. In the Web Access interface, use the timeline and video controls to navigate to an image that is suitable for license plate detection.
    3. Click Select.
  7. In the Processing Mask image, define the areas that the video analytic analyzes and ignores.
    1. In the Drawing Mode list, select whether to draw an area to analyze or ignore.
    2. Using the Size slider, select the size of drawing circle.
    3. On the image, click and drag the drawing circle to define the areas to analyze or ignore.
  8. In the Plate Detection image, draw a frame around the license plate so that the edges of the text on the license plate fall within the green frame.
    1. Click and drag the frame on the image.
    2. To move the frame, click in the middle of the green frame and drag the frame.
    3. To change the size of the frame, click an edge of the frame and drag the line to change the size.
    4. To adjust the slant and slope of the frame, click a corner of the frame and drag the corner to change the slant or slope.
  9. Using the Reporting Confidence slider, select how sensitive the video analytic is to potential license plates.
  10. Click OK.