Convolutional dictionary learning: A comparative review and new algorithms

C Garcia-Cardona, B Wohlberg - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
Convolutional sparse representations are a form of sparse representation with a dictionary
that has a structure that is equivalent to convolution with a set of linear filters. While effective …

An online plug-and-play algorithm for regularized image reconstruction

Y Sun, B Wohlberg, US Kamilov - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Plug-and-play priors (PnP) is a powerful framework for regularizing imaging inverse
problems by using advanced denoisers within an iterative algorithm. Recent experimental …

RARE: Image reconstruction using deep priors learned without groundtruth

J Liu, Y Sun, C Eldeniz, W Gan, H An… - IEEE Journal of …, 2020 - ieeexplore.ieee.org
Regularization by denoising (RED) is an image reconstruction framework that uses an
image denoiser as a prior. Recent work has shown the state-of-the-art performance of RED …

Systematic review on learning-based spectral CT

A Bousse, VSS Kandarpa, S Rit… - … on Radiation and …, 2023 - ieeexplore.ieee.org
Spectral computed tomography (CT) has recently emerged as an advanced version of
medical CT and significantly improves conventional (single-energy) CT. Spectral CT has two …

Learning multiscale convolutional dictionaries for image reconstruction

T Liu, A Chaman, D Belius… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Convolutional neural networks (CNNs) have been tremendously successful in solving
imaging inverse problems. To understand their success, an effective strategy is to construct …

First-and second-order methods for online convolutional dictionary learning

J Liu, C Garcia-Cardona, B Wohlberg, W Yin - SIAM Journal on Imaging …, 2018 - SIAM
Convolutional sparse representations are a form of sparse representation with a structured,
translation-invariant dictionary. Most convolutional dictionary learning algorithms to date …

Scalable online convolutional sparse coding

Y Wang, Q Yao, JT Kwok, LM Ni - IEEE Transactions on Image …, 2018 - ieeexplore.ieee.org
Convolutional sparse coding (CSC) improves sparse coding by learning a shift-invariant
dictionary from the data. However, most existing CSC algorithms operate in the batch mode …

A novel fusion method based on online convolutional sparse coding with sample-dependent dictionary for visible–infrared images

H Li, C Zhang, S He, Z Feng, L Yi - Arabian Journal for Science and …, 2023 - Springer
As an important branch of information fusion, infrared–visible image fusion can generate
scene information with rich texture details via signal processing technology. The fused …

A Noise-Robust Online convolutional coding model and its applications to poisson denoising and image fusion

W Wang, XG **a, C He, Z Ren, T Wang, B Lei - Applied Mathematical …, 2021 - Elsevier
In this paper, we propose a noise-robust online convolutional coding model for image
representation, which can use the noisy images as training data. Then an alternating …

Multi-channel convolutional analysis operator learning for dual-energy CT reconstruction

A Perelli, SA Garcia, A Bousse, JP Tasu… - Physics in Medicine …, 2022 - iopscience.iop.org
Objective. Dual-energy computed tomography (DECT) has the potential to improve contrast
and reduce artifacts and the ability to perform material decomposition in advanced imaging …