Keyphrases
- preprocessing
- experimental evaluation
- high accuracy
- dynamic programming
- times faster
- learning algorithm
- computational cost
- extracted features
- detection algorithm
- theoretical analysis
- segmentation algorithm
- np hard
- significant improvement
- k means
- selection algorithm
- computational complexity
- optimal solution
- cost function
- co occurrence
- convergence rate
- improved algorithm
- matching algorithm
- input image
- em algorithm
- expectation maximization
- input data
- worst case
- feature vectors
- training set
- feature space
- feature extraction