Results 21 to 30 of about 13,906,445 (282)

An Efficient Method for Euler’s Elastica Based Image Deconvolution

open access: yesIEEE Access, 2019
Variational models involving Euler's elastica energy have a wide range of applications in digital image processing. Recently, fast methods, such as the proximal-augmented Lagrangian method (PALM), have been successfully used to solve nonlinear higher ...
Samad Wali   +6 more
doaj   +1 more source

Joint Demosaicing and Denoising Based on a Variational Deep Image Prior Neural Network

open access: yesSensors, 2020
A joint demosaicing and denoising task refers to the task of simultaneously reconstructing and denoising a color image from a patterned image obtained by a monochrome image sensor with a color filter array.
Yunjin Park   +3 more
doaj   +1 more source

Feature Reconstruction from Incomplete Tomographic Data without Detour

open access: yesMathematics, 2022
In this paper, we consider the problem of feature reconstruction from incomplete X-ray CT data. Such incomplete data problems occur when the number of measured X-rays is restricted either due to limit radiation exposure or due to practical constraints ...
Simon Göppel   +2 more
doaj   +1 more source

Unsupervised Transformer Balanced Hashing for Multispectral Remote Sensing Image Retrieval

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
For remote sensing (RS) image retrieval task, hashing technology have been extensively researched in recent works. Unsupervised hashing approaches have attracted much attention in the RS data processing field because label collection takes a lot of time.
Yaxiong Chen   +3 more
doaj   +1 more source

Fast and Adaptive Boosting Techniques for Variational Based Image Restoration

open access: yesIEEE Access, 2019
Variational based problems are an important class of problems and have a space of improvement in image processing. Boosting techniques have been shown capable of improving many image restoration algorithms.
Samad Wali   +6 more
doaj   +1 more source

Fractional-Order Variational Image Fusion and Denoising Based on Data-Driven Tight Frame

open access: yesMathematics, 2023
Multi-modal image fusion can provide more image information, which improves the image quality for subsequent image processing tasks. Because the images acquired using photon counting devices always suffer from Poisson noise, this paper proposes a new ...
Ru Zhao, Jingjing Liu
doaj   +1 more source

An Efficient Variational-Level-Set Model Based on Adaptive Local Fitted Image for Noisy Image Segmentation

open access: yesIEEE Access, 2020
In image processing and computer vision, image segmentation plays a fundamental role since it can make images easier to analyze. However, noise is easily introduced into images and brings great challenges to image segmentation.
Cheng Liu, Weibin Liu, Weiwei Xing
doaj   +1 more source

Application of Image Processing Variation Model Based on Network Control Robot Image Transmission and Processing System in Multimedia Enhancement Technology

open access: yesJournal of Robotics, 2022
The rapid development of the information age brings convenience to human life, but it also brings great challenges to information processing technology. Multimedia enhancement technology is an organic combination of multimedia technology and information ...
Yanmin Wu, Jinli Qi
doaj   +1 more source

Introduction to variational image-processing models and applications [PDF]

open access: yesInternational Journal of Computer Mathematics, 2013
Variational image-processing models offer high-quality processing capabilities for imaging. They have been widely developed and used in the last two decades, enriching the fields of mathematics as well as information science. Mathematically, several tools are needed: energy optimization, regularization, partial differential equations, level set ...
openaire   +2 more sources

Existence and Uniqueness of Weak Solutions for Novel Anisotropic Nonlinear Diffusion Equations Related to Image Analysis

open access: yesJournal of Mathematics, 2021
This paper establishes the existence and uniqueness of weak solutions for the initial-boundary value problem of anisotropic nonlinear diffusion partial differential equations related to image processing and analysis. An implicit iterative method combined
Anas Tiarimti Alaoui, Mostafa Jourhmane
doaj   +1 more source

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