Graph Laplacian regularization for image denoising: Analysis in the continuous domain

J Pang, G Cheung - IEEE Transactions on Image Processing, 2017 - ieeexplore.ieee.org
Inverse imaging problems are inherently underdetermined, and hence, it is important to
employ appropriate image priors for regularization. One recent popular prior-the graph …

Non-local Retinex---A unifying framework and beyond

D Zosso, G Tran, SJ Osher - SIAM Journal on Imaging Sciences, 2015 - SIAM
In this paper, we provide a short review of Retinex and then present a unifying framework.
The fundamental assumption of all Retinex models is that the observed image is a …

Convex generalizations of total variation based on the structure tensor with applications to inverse problems

S Lefkimmiatis, A Roussos, M Unser… - Scale Space and …, 2013 - Springer
We introduce a generic convex energy functional that is suitable for both grayscale and
vector-valued images. Our functional is based on the eigenvalues of the structure tensor …

Elastica models for color image regularization

H Liu, XC Tai, R Kimmel, R Glowinski - SIAM Journal on Imaging Sciences, 2023 - SIAM
The choice of a proper regularization measure plays an important role in the field of image
processing. One classical approach treats color images as two-dimensional surfaces …

A color elastica model for vector-valued image regularization

H Liu, XC Tai, R Kimmel, R Glowinski - SIAM Journal on Imaging Sciences, 2021 - SIAM
Models related to the Euler's elastica energy have proven to be useful for many applications
including image processing. Extending elastica models to color images and multichannel …

Real-time depth refinement for specular objects

R Or-El, R Hershkovitz, A Wetzler… - Proceedings of the …, 2016 - cv-foundation.org
The introduction of consumer RGB-D scanners set off a major boost in 3D computer vision
research. Yet, the precision of existing depth scanners is not accurate enough to recover fine …

The Laplace-Beltrami operator: a ubiquitous tool for image and shape processing

A Wetzler, Y Aflalo, A Dubrovina, R Kimmel - … Morphology and Its …, 2013 - Springer
The ubiquity of the Laplace-Beltrami operator in shape analysis can be seen by observing
the wide variety of applications where it has been found to be useful. Here we demonstrate a …

Laplacian colormaps: a framework for structure‐preserving color transformations

D Eynard, A Kovnatsky… - Computer Graphics …, 2014 - Wiley Online Library
Mappings between color spaces are ubiquitous in image processing problems such as
gamut mapping, decolorization, and image optimization for color‐blind people. Simple color …

Blind image quality assessment using Beltrami filter-based contrast features (BF-bCF) & LSTM network

Y Gabhane, TK Jain, V Kamble - The Imaging Science Journal, 2024 - Taylor & Francis
Advanced networks excel in Blind Image Quality Assessment (BIQA), however accurate
estimation of quality scores remains challenging due to unrevealed features extricated …

Digital restoration of damaged mural images

P Purkait, B Chanda - Proceedings of the Eighth Indian Conference on …, 2012 - dl.acm.org
Patch-based techniques are proven to generate promising results and outperform many of
the existing state-of-art techniques for most of the applications in digital image processing. In …