Variational Image Regularization with Euler's Elastica Using a Discrete Gradient Scheme.
Torbjørn RingholmJasmina LazicCarola-Bibiane SchönliebPublished in: SIAM J. Imaging Sci. (2018)
Keyphrases
- image segmentation
- image data
- edge detection
- multiscale
- gradient direction
- image retrieval
- input image
- single image
- smoothness term
- blind deconvolution
- image features
- variational formulation
- image representation
- energy functional
- high resolution
- gradient field
- level lines
- vector field
- pixel values
- prior information
- numerical scheme
- level set
- edge map
- variational framework
- segmentation method
- gradient information
- signed distance function
- piecewise constant
- discrete fourier transform
- wavelet transform
- zero crossing
- regularization term
- segmentation algorithm