HVS based dictionary learning for scalable sparse image representation.
Bojana BegovicVladimir StankovicLina StankovicSamuel ChengPublished in: ACSCC (2012)
Keyphrases
- image representation
- dictionary learning
- sparse coding
- sparse representation
- image classification
- human visual system
- multiscale
- group sparsity
- bag of words
- visual words
- object recognition
- image content
- compressive sensing
- discriminative power
- image features
- sparse codes
- sparsity constraints
- class specific
- image retrieval
- bag of visual words
- feature space
- image patches
- negative matrix factorization
- image quality
- scene classification
- data sets
- small number
- machine learning
- face recognition
- test images
- unsupervised learning
- natural images
- higher order
- denoising
- supervised learning