Real-Time Face Recognition from Surveillance Video - Intelligent Video Event Analysis and Understanding - page 182

Fig. 23 Rejection of unsuitable face candidates at each stage of the detection process: Darryl
Fig. 24 Rejection of unsuitable face candidates at each stage of the detection process: Adrian
within the local features. If these cannot be accurately identified, the face candi-
date is discarded. Recognition is attempted only on face candidates which pass all
stages of the detection process. Thus, we are discarding around 60%-70% of face
candidates in order to improve recognition accuracy.