Face presentation attack detection across spectrum using time-frequency descriptors of maximal response in Laplacian scale-space.
Ramachandra RaghavendraKiran B. RajaSébastien MarcelChristoph BuschPublished in: IPTA (2016)
Keyphrases
- scale space
- attack detection
- keypoints
- rotationally invariant
- zero crossing
- multiscale
- multistage
- scale spaces
- feature detection
- intrusion detection system
- image analysis
- gaussian scale space
- multiple scales
- image structure
- image features
- scale selection
- vector valued
- heat kernel
- scale invariant
- face images
- cyber attacks
- intrusion detection
- critical points
- product recommendation
- frequency domain
- gaussian kernel
- pattern recognition
- diffusion equation
- shape descriptors
- edge detector
- wavelet transform
- feature descriptors
- differential operators
- feature vectors
- object recognition