Symmetry-Based Graph Fourier Transforms for Image Representation.
Alessandro GnuttiFabrizio GuerriniRiccardo LeonardiAntonio OrtegaPublished in: ICIP (2018)
Keyphrases
- image representation
- fourier transform
- frequency domain
- multiscale
- image classification
- signal processing
- object recognition
- image content
- quadtree
- bag of words
- image retrieval
- image features
- visual words
- fourier analysis
- representation scheme
- sparse coding
- correlation function
- scene recognition
- fourier domain
- feature space
- sparse representation
- scene classification
- log polar
- bag of features
- spatial domain
- fast fourier transform
- scene categorization