Image denoising using anisotropic second and fourth order diffusions based on gradient vector convolution.
Huaibin WangYuanquan WangWenqi RenPublished in: Comput. Sci. Inf. Syst. (2012)
Keyphrases
- fourth order
- anisotropic diffusion
- gradient vector
- diffusion equation
- edge detector
- edge detection
- noise removal
- partial differential equations
- nonlinear diffusion
- image processing
- wavelet domain
- diffusion process
- training algorithm
- edge preserving
- beltrami flow
- multiscale
- scale spaces
- image denoising
- structure tensor
- diffusion tensor
- bp algorithm
- noisy images
- denoising algorithm
- external force
- signal to noise ratio
- denoising
- edge map
- image enhancement
- neural network
- speckle noise
- image sequences
- image analysis
- support vector
- multiresolution
- gray level
- high order