Results 31 to 40 of about 3,008,496 (291)

Low Dose CT Image Reconstruction Based on Structure Tensor Total Variation Using Accelerated Fast Iterative Shrinkage Thresholding Algorithm

open access: yesSensors, 2020
Low dose computed tomography (CT) has drawn much attention in the medical imaging field because of its ability to reduce the radiation dose. Recently, statistical iterative reconstruction (SIR) with total variation (TV) penalty has been developed to low ...
Junfeng Wu   +4 more
doaj   +1 more source

A Convergent Solution to Matrix Bidirectional Projection Based Feature Extraction with Application to Face Recognition [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2011
Recently, many feature extraction methods, which are based on the matrix representation of image and matrix bidirectional projection technique, are proposed.
Yubin Zhan, Jianping Yin, Xinwang Liu
doaj   +1 more source

An inertial based forward–backward algorithm for monotone inclusion problems and split mixed equilibrium problems in Hilbert spaces

open access: yesAdvances in Difference Equations, 2020
Iterative algorithms are widely applied to solve convex optimization problems under a suitable set of constraints. In this paper, we develop an iterative algorithm whose architecture comprises a modified version of the forward-backward splitting ...
Yasir Arfat   +3 more
doaj   +1 more source

Multiple-sets split feasibility problem and split equality fixed point problem for firmly quasi-nonexpansive or nonexpansive mappings

open access: yesJournal of Inequalities and Applications, 2021
In this paper, we propose a new iterative algorithm for solving the multiple-sets split feasibility problem (MSSFP for short) and the split equality fixed point problem (SEFPP for short) with firmly quasi-nonexpansive operators or nonexpansive operators ...
Tongxin Xu, Luoyi Shi
doaj   +1 more source

Relative improvement of lesion visibility using iterative reconstruction relating to the filtered back projection algorithm.

open access: yes, 2013
Relative improvement of lesion visibility using iterative reconstruction relating to the filtered back projection algorithm.
Thomas Rodt (185444)   +6 more
core   +1 more source

Convergence analysis of an iterative algorithm for the extended regularized nonconvex variational inequalities

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we suggest and analyze a new system of extended regularized nonconvex variational inequalities and prove the equivalence between the aforesaid system and a fixed point problem.
Ying Zhao, Luoyi Shi, Rudong Chen
doaj   +1 more source

Live Iterative Ptychography with Projection-Based Algorithms

open access: yesICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
In this work, we demonstrate that the ptychographic phase problem can be solved in a live fashion during scanning, while data is still being collected. We propose a generally applicable modification of the widespread projection-based algorithms such as Error Reduction (ER) and Difference Map (DM).
Welker, Simon   +3 more
openaire   +5 more sources

Iterative projection algorithms for solving inverse problems [PDF]

open access: yesOceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492), 2004
Inverse problems abound in the ocean sciences, as they do in almost every area of science and technology. Solutions to inverse problems are notoriously difficult, computationally expensive, and noise sensitive. Iterative projection algorithms have proved to be particularly useful for solving some image reconstruction problems with incomplete data ...
openaire   +1 more source

Iterative learning control: algorithm development and experimental benchmarking

open access: yes, 2009
This thesis concerns the general area of experimental benchmarking of Iterative Learning Control (ILC) algorithms using two experimental facilities. ILC is an approach which is suitable for applications where the same task is executed repeatedly over the
Cai, Zhonglun
core   +2 more sources

Iterative Cosparse Projection Algorithms For The Recovery Of Cosparse Vectors

open access: yes, 2011
Publication in the conference proceedings of EUSIPCO, Barcelona, Spain ...
Giryes, Raja   +3 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy