NTF vs. PCA Features for Searching in a Spectral Image Database.
Alexey AndriyashinArto KaarnaTimo JääskeläinenJussi ParkkinenPublished in: CGIV/MCS (2008)
Keyphrases
- image database
- feature extraction
- negative matrix factorization
- image retrieval
- cbir systems
- feature space
- image content
- principal component analysis
- vocabulary tree
- image data
- feature vectors
- relevant images
- high level
- image features
- dimensionality reduction
- mutual information
- image regions
- spatial information
- covariance matrix
- high dimensional
- face recognition