Dimensionality Reduction of SIFT Descriptor Using Vector Decomposition for Image Classification.
Dhirendra KumarRamesh Kumar AgrawalPublished in: SoCPaR (2016)
Keyphrases
- image classification
- sift descriptors
- dimensionality reduction
- visual words
- feature extraction
- bag of features
- image features
- bag of words
- image search
- feature vectors
- image representation
- discriminative power
- visual features
- global context
- principal component analysis
- low dimensional
- high dimensional
- feature representation
- sparse coding
- projective invariants
- data points
- pattern recognition
- image matching
- scale invariant feature transform
- feature space
- keypoints
- sparse representation
- high dimensional data
- unsupervised learning
- feature selection
- pairwise
- affine invariant
- action recognition
- object recognition
- language model