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To ensure the operation of this feature, it is necessary to set the True true value for the VodiCTL_VPW_DYNAMIC_ENABLE parameter (see The VT module object settings panel).

License plate recognition when there are problems with templates or templates are absent

It is possible to interpret recognized characters as text if, for example, there are problems with template recognition or if the recognized license plates don't match known templates.

To ensure the operation of this feature, it is necessary to set the true value for the VodiCTL_VPW_TREAT_SYMBOLS_AS_TEXT parameter (see The VT module object settings panel).

Using a GPU for VT license plate recognition

By default, only the CPU resources are used. To enable the usage of the GPU computing resources, do the following:

  1. Download the TensorRTCudaCudnn_SDK_Installer.zip distribution kit
  2. for VT GPU from the AxxonSoft website from the Axxon PSIM downloads page
  3. from Hotfixes of Axxon PSIM and vertical solutions.
  4. Unpack the downloaded archive.
  5. On Install this software on the computer with the installed Auto PSIM, place all files of the downloaded archive in a folder at C:\Program Files (x86)\Axxon PSIm\Modules64\UrmLpr\VIT_2.18.0.that has Auto PSIM installed.
  6. On the settings panel of the LPR channel object, select a GPU for license plate recognition (see Selecting a device for license plate recognition).

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

If recognition doesn't start, delete the cache files from the VT_Cache folder located at C:Windows and restart Axxon PSIM. After that, wait for the caching process to complete. As a result, cache files appear in the VT_Cache folder, and GPU is used for recognition.