Documentation for Face PSIM 1.0.1.

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To configure the recognition parameters of captured faces, do the following:

  1. Go to the settings panel of the Face recognition server object, to the General settings tab.
  2. Set the Select the best frame for recognition checkbox to select the best frame from all images of one person that came from the Face detection tool to the Face recognition server and create FIR only for it.
  3. In the Similarity level field, specify the similarity level between the captured face and the reference image as a percentage, above which the face is considered recognized.

    Attention!

    If you change the value, note that the new value applies to new faces. The similarity level for other faces remains the same.

  4. In the Search for similar faces field, specify the maximum number of similar reference images, which identifiers and similarity level will be stored in database for one frame of a captured face.

    Note

    We recommend specifying the 1 value for a more precise search of the recognized faces (see Filtering the recognized and unrecognized faces).

  5. In the Minimum quality for face recognition (0-100) field, specify as a percentage the minimum quality of the captured face, at which it is recognized. The default value is 60%.

    Attention!

    If recognition of face concealment is enabled, then in order to correctly detect the presence of a face mask, it can be necessary to set the Minimum quality for face recognition (0-100) value below the default value (see Configuring the permissions and additional settings).

  6. In the Minimum quality for adding face to DB (0-100) field, specify as a percentage the minimum quality of face to be added to the database. 

  7. Set the Create FIR in detection unit checkbox, so that the face detection tool generates and attaches biometric parameters to the face image. If the checkbox is clear, the detection tool only captures faces, and the Face recognition server generates and attaches the biometric parameters. 
  8. Set the Select the best frame in detection unit checkbox, so that only the best frame is sent to the Face recognition server. If the checkbox is clear, all frames are sent to the Face recognition server.

  9. In the Skip repeated recognitions, s field, specify the time period in seconds during which a captured face isn't recognized repeatedly. The default value is 2. See also the IgnoreSamePeople registry key in the Registry keys reference guide, for details about working with the registry, see Working with Windows OS registry.

  10. Set the Use GPU checkbox to select the discrete graphics card when using the VA and VideoIntellect 1.1 face recognition modules. If the checkbox is clear, the recognition is performed on the CPU. 

    Attention!

    If the Use GPU checkbox is set for the first time, then at the same moment the caching process starts in a new window to optimize the recognition on the current GPU. Do not interrupt this process. If for some reason the caching process was interrupted, it is necessary to delete the cache folder at <Face PSIM installation directory>\ Modules64\Firserver\FaceRecognition\Va_ [SDK version]\ (for the VA module). Afterwards, when the Use GPU checkbox is set, the recognition using the GPU is performed immediately without the caching process.

    If you replace the video card, the caching process restarts automatically.

    After the caching process is complete, enable the recognition using the GPU by selecting the video card from the Select GPU drop-down list in the settings of the Face Detection object (see Basic settings of the Face Detection module).

  11. In the Collected no less than ... frames with person field, specify the number of frames after which a face is recognized.

  12. In the Person in field of view for no less than … seconds field , specify the time in seconds upon reaching which the recognition starts.

    Note

    • The Person left the camera field of view condition is always enabled.
    •  The face recognition starts if at least one of the three conditions is met from the Recognize if any of the conditions met settings group.
  13. Click the Apply button to save the changes.

Configuring the recognition parameters of captured faces is complete.

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