A Privacy-Preserving Filter for Oblique Face Images Based on Adaptive Hopping Gaussian Mixtures.
Omair SarwarBernhard RinnerAndrea CavallaroPublished in: IEEE Access (2019)
Keyphrases
- medical images
- privacy preserving
- face images
- gaussian mixture
- face recognition
- facial expressions
- privacy preserving data mining
- feature vectors
- low resolution
- principal component analysis
- vertically partitioned data
- gaussian mixture model
- em algorithm
- high resolution
- closed form
- feature extraction
- probability density function
- expectation maximization
- covariance matrix
- training set
- mixture model
- test images
- density estimation
- input image
- image patches
- data mining
- databases
- image processing
- computer vision