Detecting Silicone Mask-Based Presentation Attack via Deep Dictionary Learning.
Ishan ManjaniSnigdha TariyalMayank VatsaRicha SinghAngshul MajumdarPublished in: IEEE Trans. Inf. Forensics Secur. (2017)
Keyphrases
- dictionary learning
- sparse representation
- sparse coding
- image super resolution
- group sparsity
- object category recognition
- sparse codes
- linear combination
- image segmentation
- image representation
- dictionary learning for sparse
- data sets
- unsupervised learning
- small number
- maximum likelihood
- text classification
- semi supervised
- multiscale
- feature extraction
- machine learning