Multi-level K-means clustering and group sparse coding with quasi-SIFT feature for image classification.
Lihe ZhangChen MaPublished in: Int. J. Inf. Commun. Technol. (2015)
Keyphrases
- group sparse coding
- sift features
- multi layer
- image classification
- visual words
- visual features
- feature detection
- mean shift
- bag of words
- scale invariant feature transform
- sift descriptors
- neural network
- feature matching
- keypoints
- k means
- sparse coding
- bag of features
- image features
- feature extraction
- image representation
- discriminative power
- image processing
- object recognition
- image search
- feature descriptors
- training set
- image sequences
- facial expressions