An efficient total variation minimization method for image restoration

CT Pham, TTT Tran, G Gamard - Informatica, 2020 - content.iospress.com
In this paper, we present an effective algorithm for solving the Poisson–Gaussian total
variation model. The existence and uniqueness of solution for the mixed Poisson–Gaussian …

A high-order convex variational model for denoising MRI data corrupted by Rician noise

TDK Phan - 2022 IEEE ninth international conference on …, 2022 - ieeexplore.ieee.org
Rician noise removal is an essential problem in magnetic resonance imaging (MRI).
Numerous variational models have been proposed in the literature dealing with Rician noise …

An algorithm for hybrid regularizers based image restoration with Poisson noise

CT Pham, TTT Tran - Kybernetika, 2021 - dml.cz
In this paper, a hybrid regularizers model for Poissonian image restoration is introduced. We
study existence and uniqueness of minimizer for this model. To solve the resulting …

Image noise removal method based on nonconvex total generalized variation and primal-dual algorithm

CT Pham, TTT Tran, HP Dang - Компьютерные исследования и …, 2023 - mathnet.ru
Image denoising is an important step in various applications such as astronomical imaging,
electron microscopy, tomography [Brune, Sawatzky, Burger, 2011; Okawa et al., 2012; …

Edge coherence-weighted second-order variational model for image denoising

TDK Phan, THY Tran - Signal, Image and Video Processing, 2022 - Springer
High-order variational models have the ability to remove the staircase effect generated by
the total variation regularizer. They, however, tend to blur object edges. To overcome this …

A corner-weighted bounded Hessian model for image denoising

TDK Phan - Multimedia Tools and Applications, 2022 - Springer
Image denoising is an essential step in the image processing task. The first-order variational
model can remove noise while preserving edges, but it also generates the staircase effect …

[PDF][PDF] A multi-stage algorithm for image denoising based on pca and adaptive tv-regularization

TDK Phan - Cybernetics and Physics, 2021 - researchgate.net
In this paper, we present an image denoising algorithm comprising three stages. In the first
stage, Principal Component Analysis (PCA) is used to suppress the noise. PCA is applied to …

[PDF][PDF] Detecting incongruity in the expression of emotions in short videos based on a multimodal approach

A Laushkina, I Smirnov, A Medvedev… - Cybernetics and …, 2022 - scholar.archive.org
Every day people face uncertainty, which is already an integral part of their lives. Uncertainty
creates risks for various kinds of companies, in particular, the financial sector may incur …

[HTML][HTML] Combined total variation of first and fractional orders for Poisson noise removal in digital images

CT Pham, TTT Tran, MT Pham… - Информационно …, 2021 - cyberleninka.ru
Introduction: Many methods have been proposed to handle the image restoration problem
with Poisson noise. A popular approach to Poissonian image reconstruction is the one …

[PDF][PDF] MIXED NOISE REDUCTION TECHNIQUES USING NONLINEAR PARTIAL DIFFERENTIAL EQUATIONS.

T Barbu, I Branch - ROMAI Journal, 2022 - researchgate.net
Some mixed noise removal techniques that use nonlinear partial differential equation (PDE)
based models are surveyed in this work. Several PDE variational models for mixed Poisson …