Keyphrases
- face recognition
- countermeasures
- discriminant analysis
- face images
- recognition rate
- local binary pattern
- sparse representation
- human faces
- traffic analysis
- computer security
- watermarking algorithm
- watermarking scheme
- security threats
- face detection
- principal component analysis
- feature extraction
- recognition accuracy
- face identification
- elastic bunch graph matching
- malicious attacks
- denial of service attacks
- security risks
- cryptographic protocols
- subspace methods
- facial expressions
- pose variations
- computer vision
- face databases
- security mechanisms
- digital images
- infrared
- terrorist attacks
- attack detection
- orl face database
- facial images