6 citations · 13 across the 7 of their papers we have counts for
3 papers · 1 filter
Dictionary Learning Phase Retrieval from Noisy Diffraction Patterns
Joshin P. Krishnan, José M. Bioucas-Dias, Vladimir Katkovnik
This paper proposes a novel algorithm for image phase retrieval, i.e., for recovering complex-valued images from the amplitudes of noisy linear combinations (often the Fourier tran…
Nonlocality-Reinforced Convolutional Neural Networks for Image Denoising
Cristóvão Cruz, Alessandro Foi, Vladimir Katkovnik +1
We introduce a paradigm for nonlocal sparsity reinforced deep convolutional neural network denoising. It is a combination of a local multiscale denoising by a convolutional neural…
Multi-frequency phase retrieval from noisy data
Vladimir Katkovnik, Karen Egiazarian
The phase retrieval from multi-frequency intensity (power) observations is considered. The object to be reconstructed is complex-valued. A novel algorithm is presented that accompl…