Face anti-spoofing based on weighted neighborhood pixel difference pattern.
Xin ShuKun XiaHui PanLei PanMing ZhangPublished in: J. Electronic Imaging (2021)
Keyphrases
- adjacent pixels
- weighted distance
- liveness detection
- pattern matching
- biometric systems
- face images
- human faces
- face verification
- weighted sum
- input image
- intensity difference
- binary patterns
- security protection
- intensity values
- facial images
- facial expressions
- gray value
- pixel wise
- pixel values
- neighborhood structure
- frontal face
- recognition algorithm
- pattern discovery
- spatial distance
- neural network