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Configuring the storage depth of images, vectors and metadata of captured faces enables the automatic archive cleanup. The archive is cleared when one of the conditions that came earlier occurs (see below).
Archive cleanup by remaining free space on the disk
To clear the archive by the remaining free space on the disk, set the size of the required remaining free space on the disk in megabytes in the FaceDBFreeMB registry key. Once the specified value is reached, the old images, vectors and metadata of captured faces will be deleted (see Registry keys reference guide, for details about working with the registry, see Working with Windows OS registry). By default, the size of remaining free disk space is 1000 megabytes.
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Once the specified size is reached, the FaceDB folders will be cleaned and the corresponding metadata will be removed from the database. The cleanup is performed on a loop in portions equivalent to 1000 megabytes. |
Archive cleanup by retention time
To clear the archive by the retention time, do the following:
- Go to the Face Recognition Server settings panel.
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The procedure for setting up the automatic cleanup of captured and recognized faces and related data archives differs depending on the storage mode (see Faces and related data storage modes).
If the UseFaceDB key is equal to 2 or 1, you should perform the following steps to configure the automatic cleanup of faces and related data archives:
- Open the Windows registry editor and go to the HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ITV\INTELLECT\FRS branch (1).
- Select, double-click and open the FaceDBFreeMB string parameter (2).
- In the Value data field, set the allowed archive size in megabytes (3).
- Click OK to save the changes (4).
Once the allowed archive size is exceeded, the FaceDB folders will be cleaned.
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The oldest images are deleted by 1000. |
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- Go to the Hardware tab in the System Settings dialog box (1).
- Select the Face Recognition Server object in the objects tree (2).
In the Keep archive of recognized faces (days) field, enter the time period (in days) for within which the recognized faces and vectors archive is to be saved (3face images, vectors and metadata should be stored in the database (1).
Info title Note The table stores information for current day and the number of days as specified in the field. For example, if the Keep archive of recognized faces (days) parameter is set to 1, information for two days (today and yesterday) is stored in the face archive.
The Keep archive of recognized faces (days) parameter also affects the captured face archive depth. Both archives are cleaned Once the specified retention time has expired, the FaceDB folders will be cleaned and the corresponding metadata will be removed from the database. The cleanup is performed on a loop every day at 00:00.
Click Apply to save the changes (4).
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2).