Keyphrases
- image classification
- svm classifier
- image features
- svm classification
- support vector machine svm
- support vector
- bag of words
- keypoints
- support vector machine
- image representation
- feature extraction
- visual words
- feature vectors
- visual features
- classifier training
- multi label
- sift descriptors
- object recognition
- bag of features
- multi class classification
- support vectors
- visual codebook
- sparse representation
- sift features
- multi class
- image matching
- scale invariant feature transform
- global features
- knn
- sparse coding
- training set
- feature descriptors
- machine learning
- feature selection
- feature detection
- image retrieval
- scale invariant
- hyperplane
- classification method
- classification algorithm
- training examples
- pattern recognition
- discriminative ability
- training data