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V-MetricsTM - The world's most effective vehicle
What is V-MetricsTM?
What kind of vehicles does it recognize?
V-Metrics will recognize any vehicle that a camera can photograph. For license plate recognition, the camera assigned to read the plate must be close enough to capture a good picture of the plate.
Do vehicles need to stop to be recognized?
V-Metrics can recognize both moving and stopped vehicles. The speed that the vehicle can be moving is only limited by the camera technology. Basically, if a clear shot of the vehicle can be obtained, V-Metrics can recognize the vehicle in real time.
Can I use it for both access control and surveillance?
Yes, V-Metrics has several modes of operation. In surveillance mode, V-Metrics will simply record the images of the vehicles and read the associated license plates. In access control mode, V-Metrics will carefully check the vehicle against a database of allowed or disallowed vehicles. In either case, a detailed log of the vehicles is always available for later investigative management.
How accurate is V-Metrics?
V-Metrics is as accurate as needed for the end-user application requirements. As with any security product, there is always a trade-off between accuracy and speed. For high security access control applications, V-Metrics can be configured to never let in an unknown vehicle.
Does lighting make a difference in the recognition rate?
Lighting does make a difference in recognition. At night, color matching is difficult without correct lighting. In addition, non-reflective plates require lighting to be present at night in order to be recognized. Except for these special circumstances, V-Metrics can be easily configured for the required application with normal lighting conditions.
How does V-Metrics stack up against other LPR systems?
V-Metrics is in a completely different category from LPR systems. V-Metrics uses the visual characteristics of the entire vehicle to verify identity. License plates are like any other security tokens, in that they can be lost, faked, stolen or shared. V-Metrics assures that the right license plate is present on the correct vehicle before access is granted.
In addition, V-Metrics was made to serve the North American marketplace where plates vary from color, to font size to reflective paint. The V-Metrics LPR subsystem can be configured to read any US plate, regardless of plate type. The patent-pending technology can read plates regardless of character font, character spacing or special characters and can even provide information about the state and plate type. Most other LPR systems were made for the European marketplace where every plate has the same consistent characteristics.
Can V-Metrics be integrated with other systems?
Yes, V-Metrics is made to be integrated into most security or surveillance front-end systems. The V-Metrics databases are SQL compliant and can support messaging systems that are XML compliant.
Can I use V-Metrics to process both stored and live video?
V-Metrics can be configured to process both stored and live video and can be integrated with almost any commercially-available DVR that is DirectX compliant at some level.
Does weather make a difference in the recognition rate?
Generally, no. However, heavy fog, rain or snow may make it difficult for the camera to get a good shot of the license plate or vehicle. In addition, if an accumulation of snow has covered the vehicle, the color or shape of the vehicle may become indistinguishable. V-Metrics can account for these special cases by recognizing the weather conditions and making suitable adjustments to the recognition algorithms but the general rule of thumb is that if the human eye can't distinguish a visual characteristic, the camera won't be able to either.
Can V-Metrics be spoofed?
Like any security product, V-Metrics can be spoofed given knowledge of the system parameters and access to the system. Active Recognition Technologies has taken every precaution to make this as difficult as possible. Our strategy is to incorporate multiple metrics into each access validation and our system can be integrated with other systems to provide greater levels of security. For instance, if a registered vehicle is stolen and only V-Metrics was being used to validate access, the stolen vehicle could be granted access to a facility. For highly secure facilities, a facial recognition system or other secondary check of the driver's credentials may be appropriate.
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I-Cube. All rights reserved. Revised: February 18, 2008 .