Keyphrases
- diffusion processes
- image enhancement
- minutiae extraction
- partial differential equations
- fingerprint images
- diffusion equation
- fingerprint identification
- diffusion process
- anisotropic diffusion
- image processing
- edge detection
- noise removal
- fingerprint recognition
- image analysis
- denoising
- information diffusion
- median filter
- scale spaces
- fingerprint matching
- contrast enhancement
- pattern recognition
- diffusion tensor
- total variation
- fingerprint verification
- nonlinear diffusion
- scale space
- image data
- feature extraction
- low quality
- wavelet transform
- feature vectors
- high quality
- image sequences