Keyphrases
- face recognition
- countermeasures
- face images
- discriminant analysis
- recognition rate
- recognition accuracy
- linear discriminant analysis
- facial images
- human faces
- traffic analysis
- local binary pattern
- malicious attacks
- face detection
- face identification
- principal component analysis
- face databases
- computer vision
- security protocols
- security risks
- denial of service attacks
- orl face database
- face verification
- security mechanisms
- sparse representation
- facial expressions
- training set
- attack detection
- malicious users
- elastic bunch graph matching