Robust hierarchical image representation using non-negative matrix factorisation with sparse code shrinkage preprocessing.
Botond SzatmáryGábor SzirtesAndrás LörinczPublished in: Pattern Anal. Appl. (2003)
Keyphrases
- image representation
- preprocessing
- sparse representation
- sparse coding
- image classification
- compressive sensing
- multiscale
- hierarchical structure
- bag of words
- image retrieval
- object recognition
- quadtree
- image features
- scene recognition
- image content
- receptive fields
- representation scheme
- scene classification
- bag of visual words
- visual words
- image denoising
- feature representations
- spatial pyramid
- feature extraction
- denoising
- bag of features
- biologically inspired
- feature space
- image classification and retrieval
- computationally efficient
- object detection
- high dimensional
- image processing
- scene categorization
- spatial pyramid matching
- pattern representation
- linear quadtree