Faces and related data storage modes

Rus

There are three modes of storing faces and related data, depending on the value of the following registry keys:

UseFaceDB: the key specifies the mode of metadata, images and vectors of captured and reference faces storage. Starting with Face Intellect 7.1, the default value is 2.
FaceDB: the key specifies the folder on disk for storing images and vectors of captured and reference faces. Starting with Face Intellect 7.1, the default value is set during the installation of Face Intellect.

Modes of Face Intellect operationand storing faces and related data for each value of the UseFaceDB key are given in the table.

UseFaceDB

Reference faces

Captured faces

Recognized faces

Vectors

Metadata

Functional mode

0

Database and <Intellect installation directory>\Bmp\<Person> folder

Database

Face search first connects to the database, reads the data set, compares it, and saves the result. This is the slowest search process.
Metadata, images and vectors are stored in the database. As a consequence, the database quickly overflows and begins to be automatically cleaned, which does not provide sufficient storage depth.

1

Database and <Intellect installation directory>\Bmp\<Person> folder

Database and the folder specified by the FaceDB key

Database

At startup, the server reads all the data from the folder into memory and performs the search. Further the received data are written to the memory, to the database and to the folder. This is the fastest search process.

All search is carried out in operative memory. As a consequence, there is a high memory consumption and a longer server start.

Metadata, images and vectors are also stored in the database. As a consequence, the database quickly overflows and begins to be automatically cleaned, which does not provide sufficient storage depth.

2

Database and <Intellect installation directory>\Bmp\<Person> folder

Folder specified by the FaceDB key

Database

At startup, the server reads all the data from the folder into memory and performs the search. Further the received data are written to the memory, to the database and to the folder. This is the fastest search process.
All search is carried out in operative memory. As a consequence, there is a high memory consumption and a longer server start.
Metadata is stored in the database, but images and vectors are stored only in the folder on disk. As a result, the database overflows slower and provides maximum storage depth.

The mode with the UseFaceDB = 2 key value provides the maximum search speed and storage depth, and starting with Face Intellect 7.1 is the default mode.

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Documentation for Face Intellect 7.1. Documentation for other versions of Intellect is available too.