Requirements for a FDR System

Usually, a Facial Detection and Recognition (FDR) system has the following
capabilities :

1. Interfacing with a video source for grabbing facial images. This implies the
possibilities of starting/stopping a video stream and capturing some frames
within it;

2. Automatic detection or manual selection of human faces may be found within
the scene;

3. Manipulate (create, add, delete) a database of faces. It is also recommended
the possibility of visual database browsing;

4. Launching the recognition process by comparing the face previously detected
with the database’s faces. The classification operation is usually preceded by
some image preprocessing operations and features extraction.


Figure 3 summarizes basic operations required by a facial detection and recognition
system,

Fig. 3. Operations required by a facial detection and recognition system.