Keyphrases
- context dependent
- edge detection
- semantic level
- context free
- multiscale
- noisy images
- edge detector
- image enhancement
- image processing
- low level
- region growing
- recursive filtering
- natural language
- high level
- edge detection algorithm
- sobel operator
- user centric
- signal to noise ratio
- blur estimation
- edge points
- zero crossing
- noise estimation
- machine learning
- markov chain
- information extraction
- information retrieval systems