SharpOS can extract information from the SharpV ALPR and context cameras such as the vehicle color and vehicle make. This metadata can be included in the license plate reads sent to Security Center or exported to a third-party system.
Character height
By default, the camera detects license plates that are close (100 pixels) or far away (17 pixels). In an installation such as an access control gate, plate read accuracy is more important than the detection of distant license plates. In this case, you can restrict the filter range to detect license plates only when vehicles are near the gate.
For more information, see Filtering plates based on character height for SharpV cameras.
Confidence score
For information on how to enable the confidence score analytic, see Configuring SharpV analytics.
Confidence score for ALPR analytics
Some analytics involve direct measurement, for example character height. For other analytics, the results might not be as clear. For example, with the vehicle color analytic, it might be difficult to differentiate between certain colors in certain lighting. For analytics like this, an additional confidence score is included in the license plate read.
The following analytics include a confidences score:
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Plate tilt
- Fixed SharpV cameras
- In a fixed camera installation, vehicles generally pass in front of the camera at the same angle. In this case, you can set the plate tilt filter to ignore text appears at a different angle. For example, the lettering on the side of delivery vehicles would generally be at a different angle to the license plate characters.
- Mobile SharpZ3 cameras
- For parking enforcement vehicles that monitor on-street parking, you can configure the plate tilt feature to exclude vehicles parked in driveways based on the angle of the license plate.
For more information, see Filtering plates based on plate tilt for SharpV cameras.
Relative motion
The camera can detect whether the vehicle is approaching or moving away.
You can add the relative motion analytic column in the Security Desk Reads reports and Hits reports.
For more information, see Investigating reported hits.
The relative motion analytic outputs the following results:
- Approaching
- Moving away
State
The camera determines where the license plate is from. Depending on the region, this can be the issuing state, province, or country. For more information on the supported plate origins that are available in the State analytic, see Supported plate origin recognition.
For information on how to enable the State analytic, see Configuring SharpV analytics.
Vehicle color
The camera can detect the color of the vehicle associated with the license plate read.
For information on how to enable the vehicle color analytic, see Configuring SharpV analytics.
The vehicle color analytic outputs the following results:
- At night, the system cannot detect color and only outputs Light, Neutral, and Dark.
- If the color cannot be identified, the system gives the value "-".
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Vehicle accessories
The camera can detect vehicle accessories that might help with positive identification of a vehicle.
- The vehicle accessories analytics are available for SharpV units only.
- Using the vehicle accessories feature increases CPU usage and can affect the frame rate.
- If a vehicle accessory cannot be identified, the system gives the value "-".
- Vehicle hitch
- The camera detects if there is a hitch on the back of the vehicle.
To detect vehicle hitches, you must turn on the vehicle accessories analytic. For information, see Configuring SharpV analytics.
The vehicle hitch analytic outputs the following results:
- Ball
- No
- Empty receiver
- Protected receiver
- Vehicle rear attachment
- The camera detects if there is a vehicle accessory such as a bicycle rack on the back
of the vehicle. The read includes a Yes or No indicating whether an
accessory was detected.
To detect rear attachments, you must turn on the vehicle accessories analytic. For information, see Configuring SharpV analytics.
- Vehicle spare tire
- The camera detects if there is a spare tire on the back of the vehicle. The read
includes a Yes or No indicating whether a spare tire was detected.
To detect spare tires, you must turn on the vehicle accessories analytic. For information, see Configuring SharpV analytics.
Vehicle make
The camera can determine the vehicle make by detecting the logo on the vehicle.
For information on how to enable the vehicle make analytic, see Configuring SharpV analytics.
The vehicle make analytic outputs the following results:
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Vehicle orientation
The camera determines which part of the vehicle was in view at the time of the plate read.
To detect vehicle orientation, you must turn on the vehicle type, color, and orientation analytic. For information, see Configuring SharpV analytics.
The vehicle orientation analytic outputs the following results:
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Vehicle type
The camera can identify the vehicle type based on the shape of the vehicle.
The system uses two versions of the vehicle type analytic; Vehicle type and Vehicle typeV2. To detect the vehicle type, you must turn on the vehicle type, color, and orientation analytic. For information, see Configuring SharpV analytics.
The Vehicle type analytic outputs the following results:
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The vehicle Vehicle typeV2 analytic outputs the following results:
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Vehicle type from plate
For cameras using the Afghanistan, Arabic Peninsula, or Saudi Arabia regional context, this analytic detects symbols on the plate that are associated with a specific vehicle type.
The vehicle type from plate analytic outputs the following results:
| Afghanistan | ||
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| Arabic Peninsula or Saudi Arabia | |
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