Fast approximations to structured sparse coding and applications to object classification
Arthur SzlamKarol GregorYann LeCunPublished in: CoRR (2012)
Keyphrases
- object classification
- sparse coding
- natural images
- dictionary learning
- object recognition
- sparse representation
- object categories
- image classification
- object detection
- linear combination
- visual words
- unsupervised learning
- generative model
- image representation
- image patches
- computer vision
- face recognition
- data sets
- feature space
- high dimensional
- higher order
- image features
- multiscale
- pairwise
- training data
- image retrieval