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To configure the License plate recognition (BRS) detection tool, do the following:
Submit to the
AxxonSoft managertechnical support the MAC address of the Server
whereon which you will use the detection tool
will be used.
Note title Attention! The detection tool will not won't operate on the Server with a different MAC address.
- Copy the license received from the AxxonSoft manager into the technical support into the C:\Program Files\Common Files\AxxonSoft\DetectorPack\BioirisSDK\License.txt file.
Restart the Server (see Shutting down a Server, Starting a Server).
To create the License plate recognition (BRS) detection tool, do the following:
- Go to the Detection Tools tab.
- Create the Below the required camera, click Create… → Category: Vehicle → License plate recognition (BRS) object and select it.
If you need .
By default, the detection tool is enabled and set to recognize vehicle license plates.
If necessary, you can change the detection tool parameters. The list of parameters is given in the table:
| Parameter | Value | Description |
|---|---|---|
| Object features | ||
| Check in lists | Yes | The parameter is disabled by default. If you want to use this detection tool |
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| to check in lists of vehicle license plates, select the Yes value (see Configuring vehicle license plate recognition based on the created lists) |
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| No | ||
| Record objects tracking | Yes | The metadata of the video stream is recorded to the database by default. To disable the parameter, select the No value |
| No | ||
| Video stream | Main stream |
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| If the camera supports multistreaming, select the stream for which detection is needed |
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| . Selecting a low-quality video stream |
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| reduces the load on the Server | ||
| Second stream | ||
| Other | ||
| Enable | Yes | The detection tool is enabled by default. To disable the detection tool, select the No value |
| No | ||
| Name | License plate recognition (BRS) | Enter the detection tool name or leave the default name |
| Decoder mode | Auto | Select a processing resource for decoding video streams |
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| . When you select a GPU, a stand-alone graphics card takes priority (when decoding with NVIDIA NVDEC chips |
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| ). If there is no appropriate GPU, the decoding will use the Intel Quick Sync Video technology |
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| . Otherwise, CPU resources will be used for decoding | ||
| CPU | ||
| GPU | ||
| HuaweiNPU | ||
| Type | License plate recognition (BRS) | Name of the detection tool type (non-editable field) |
| Advanced settings | ||
| Frame size change | 1920 | The analyzed frames |
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are scaled down to a specified resolution ( |
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1920 pixels on the longer side) by default. The |
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following algorithm is used:
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| Minimum recognition quality, in % | 80 | Specify the minimum quality of license plates recognition as a percentage. The higher the minimum recognition quality, the fewer false |
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| alarms. The value |
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| must be in the range |
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| [0 |
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| , 100] |
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| Event timeout | 3 | Specify the |
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| time in seconds after which the |
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| alarm must be generated after recognizing |
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| a license plate in the frame. |
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| The value |
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| must be in the range |
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| 1, 3600]. If |
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| the value is 0 |
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| , the |
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| alarm will |
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| be generated after the |
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| track with a license plate |
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| is lost | ||
| Tracker timeout | 3 | Specify the time in seconds |
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after which the vehicle track is considered lost. |
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The value |
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must be in the range |
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[0 |
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, 3600].
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| Basic settings | |||||||
| Maximum LP width | 10 | Specify the maximum and minimum width of the license plate as a percentage according to the actual size of the license plate in the frame. The value must be in the range [0, 100].
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| Minimum LP width | 1 | ||||||
In the window, specify the area in which license plate detection and recognition will be performed. You can adjust
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the area by moving the anchor
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points 
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| Info | ||
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To save the parameters of the detection tool, click the Apply 
button. To cancel the changes, click the Cancel 
button.
Configuration of License plate recognition (BRS) is complete.
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