Description

The Face Detection VA generates an event every time a face is captured in the frame.

The Axxon One database stores all faces in binary form:

  1. All captured faces are stored as biometric vectors (see Face search) in the t_face_vector table, and their corresponding capture events are stored in the t_json_event table.
  2. All reference faces from the lists (see Faces) are stored in the t_face_listed table.

When the number of faces in the database increases, the statistical error increases: the more faces in the database, the more often similar faces are recognized when searching in the archive. Accordingly, the degree of similarity when comparing the reference face with the captured face decreases.

This error is relevant if:

  1. The Video stream and scene requirements for the Face Detection VA and its sub-tools are met.
  2. The database contains over a million faces.

The mugshot dataset (good quality photo), 12 million faces in the database, and probability of false matching is 0.003%. With these initial data, the researchers obtained an identification error of 0.76%.

LicensingTo operate the detection tool, contact an AxxonSoft manager and get a license file (see Types of licenses)
Add-ons

For the Face Detection VA to work, you must install VA Face Recognition Pack (see Installing DetectorPack add-ons).

  • You can install only one Face Recognition Pack: either VA Face Recognition Pack or VL Face Recognition Pack. You cannot install both packages in the same system.
  • Face Recognition Pack is guaranteed to work on Linux Debian 11 and Ubuntu 20. Face Recognition Packs isn't guaranteed to work on Linux Debian 9/10, Ubuntu 18 and Ubuntu 19 (see Operating system requirements).