In certain situations, it is possible for the SharpV to monitor two lanes of traffic. If dual-lane monitoring is available in your region, you can configure the camera to identify two lanes in the field of view.
Before you begin
- Install the SharpV between the two lanes, for example, on an overpass. If the camera cannot be installed exactly between the two lanes, a certain amount of offset can be accounted for in the following steps.
- Adjust the focus and zoom of the camera.NOTE: When monitoring dual lanes, characters should be from 10 to 40 pixels high. This is smaller than the standard pixel height requirements (25 - 60 pixels). As a result, license plate capture performance might be affected. When using this feature, it is recommended that you test the system's performance.
- Select a compatible regional context. For the complete list of countries that currently support Dual-lane feature, see Supported dual-lane configurations.
What you should know
IMPORTANT: When the SharpV is configured to monitor dual lanes, the
virtual loop, speed estimation, and region of interest features are
unavailable.
IMPORTANT: In the dual-lane mode, motorcycle plates are not read bySharpV cameras.
IMPORTANT: Using the SharpV dual-lane monitoring feature reduces the
ALPR performance of the camera. Do not configure the SharpV for dual-lane license plate detection if
you are monitoring parking occupancy using AutoVu™
Free-Flow in Security
Center.
- The SharpV can detect vehicles moving in either direction, assuming the vehicles have front and rear license plates.
- One read strategy analytic (for example, for slow-moving vehicles) applies to both lanes.
Procedure
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Define the center line between the two lanes.
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Drag the sliders to define the lane separator position.
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Drag the sliders to define the lane separator position.