Extending Laplacian sparse coding by the incorporation of the image spatial context.
Mahmoud MejdoubMouna DammakChokri Ben AmarPublished in: Neurocomputing (2015)
Keyphrases
- sparse coding
- image classification
- image representation
- spatial context
- natural images
- sparse representation
- single image super resolution
- input image
- dictionary learning
- visual words
- image features
- image content
- image regions
- image data
- spatial relationships
- spatial pyramid matching
- linear combination
- spatial information
- multiscale
- test images
- image patches
- bag of words
- spatial and temporal
- unsupervised learning
- image segmentation
- object recognition
- image retrieval
- contextual information
- pattern recognition
- low resolution
- generative model
- nearest neighbor
- keypoints
- machine learning
- signal processing
- low level
- similarity measure
- face recognition
- computer vision