Numerical Approximation of the Fractional Laplacian via hp-finite Elements, with an Application to Image Denoising.
Paolo GattoJan S. HesthavenPublished in: J. Sci. Comput. (2015)
Keyphrases
- image denoising
- finite element
- finite difference
- wavelet based image denoising
- denoising
- partial differential equations
- noisy images
- natural images
- total variation
- image processing
- boundary element
- wavelet coefficients
- finite element model
- numerical solution
- denoising methods
- wavelet domain
- bilateral filtering
- denoising algorithm
- total variation regularization
- additive gaussian noise
- wavelet domain hidden markov tree
- probability model
- image deblurring
- numerical methods
- feature extraction
- undecimated wavelet transform
- generalized gaussian
- augmented lagrangian
- computer vision
- multiscale
- differential equations
- wavelet transform
- input image