Invariant hierarchical sparse coding for object recognition via bags of atoms.
Xiaoxia SunNasser M. NasrabadiTrac D. TranPublished in: GlobalSIP (2016)
Keyphrases
- sparse coding
- object recognition
- natural images
- linear combination
- unsupervised learning
- image representation
- visual words
- dictionary learning
- sparse representation
- image classification
- image patches
- discriminative dictionary
- discriminative power
- scene classification
- computer vision
- sparse codes
- generative model
- single image super resolution
- image features
- bag of words
- deep belief networks
- object category recognition
- object detection
- object categories
- supervised learning
- visual recognition
- multiscale
- higher order
- affine invariant
- keypoints
- multi class
- feature space
- probabilistic model
- signal processing
- bayesian networks
- feature vectors
- expectation maximization
- co occurrence