Documentation for Auto PSIM 1.0.1.

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Attention!

To increase the performance of license plate recognition, you can use computing resources of the graphics card. To do this, when configuring the LPR channel object (see Selecting a device for license plate recognition), from the Use GPU drop-down list, select the required device. By default, only CPU computing resources are used.

The start (initialization) time of the license plate recognition algorithm using a graphics card can take several minutes. No license plate recognition events are received until the initialization is complete.

GPU files are included in the distribution package starting with Auto PSIM version 1.0.1.293. No additional installation is required.

For Auto PSIM earlier than version 1.0.1.293, you must activate computing resources of a graphics card:

  1. Download the distribution package to activate the GPU for the RR module from the AxxonSoft website.
  2. Unzip the downloaded archive.
  3. Put all files of the downloaded archive into the folder on the computer with installed Auto PSIM at C:\Program Files (x86)\Axxon PSIM\Modules64\UrmLpr\RR_gpu.

To configure the RR software module, do the following:

  1. Depending on the license type, go to the settings panel of the RR module (fast) or RR module (slow) object, which is created on the basis of the LPR channel object.
  2. In the Number of streams field (1), enter the number of streams that the SDK of the RR recognizer uses during parallel computing. The 0 value (default) disables parallelization during license plate recognition.

    Attention!

    Increasing the number of streams during parallel computing also increases the load on the CPU. All changes are applied only after you restart Axxon PSIM.

  3. In the Maximum track size (frames) field (2), enter the maximum number of frames for one track that will be processed by the RR SDK (the smaller the value, the faster the recognition result are given, but it is also be less accurate). The default value is 0. The number of frames is not limited.

    Attention!

    If the LP recognition upon request is used (see Setting up the Camera of recognition upon request module), the Maximum track size (frames) must be equal to 1.

  4. Set the Skip unrecognized LPs checkbox (3) to ignore the vehicles with unrecognized license plates.
  5. By default, only license plates of the main country are recognized, which is specified in the settings panel of the LPR channel object (see Selecting the country and license plate recognition SDK). If it is also necessary to recognize license plates of additional countries, click the Select countries button (4) and in the Country selection window that opens, select the required countries.
  6. If it is necessary to determine the speed by video, specify the appropriate camera settings (5). The specified parameters must correspond to the actually used camera and its mounting parameters.
  7. To save the settings, click the Apply button (6).

Note

If you create several RR recognition channels, the load on the CPU cores can be uneven, because the even distribution mode isn't enabled by default. The enable it, set the 1 value for the string parameter of the IsProcessObject registry key (see Vertical solutions).

Configuration of the RR software module is complete.

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