Results 1 to 10 of about 3,242 (211)

Saliency-Guided Nonsubsampled Shearlet Transform for Multisource Remote Sensing Image Fusion [PDF]

open access: goldSensors, 2021
The rapid development of remote sensing and space technology provides multisource remote sensing image data for earth observation in the same area. Information provided by these images, however, is often complementary and cooperative, and multisource ...
Liangliang Li, Hongbing Ma
doaj   +4 more sources

X-ray Image Enhancement Based on Nonsubsampled Shearlet Transform and Gradient Domain Guided Filtering [PDF]

open access: yesSensors, 2022
In this paper, we propose an image enhancement algorithm combining non-subsampled shearlet transform and gradient-domain guided filtering to address the problems of low resolution, noise amplification, missing details, and weak edge gradient retention in
Tao Zhao, Si-Xiang Zhang
doaj   +2 more sources

Sparse Representation-Based Multi-Focus Image Fusion Method via Local Energy in Shearlet Domain [PDF]

open access: yesSensors, 2023
Multi-focus image fusion plays an important role in the application of computer vision. In the process of image fusion, there may be blurring and information loss, so it is our goal to obtain high-definition and information-rich fusion images.
Liangliang Li   +3 more
doaj   +2 more sources

Determining Area Affected by Corona in Lung Computed Tomography Images by Three-phase Level Set and Shearlet Transform [PDF]

open access: yesJournal of Medical Signals and Sensors
Background: The COVID-19 pandemic has created a critical global situation, causing widespread challenges and numerous fatalities due to severe respiratory complications. Since lung involvement is a key factor in COVID-19 diagnosis and treatment, accurate
Nasser Aghazadeh   +2 more
doaj   +2 more sources

Low-Light Image Enhancement Based on Nonsubsampled Shearlet Transform [PDF]

open access: goldIEEE Access, 2020
To improve the observability of low-light images, a low-light image enhancement algorithm based on nonsubsampled shearlet transform (NSST) is presented (LIEST). The proposed algorithm can synchronously achieve contrast improvement, noise suppression, and
Manli Wang   +4 more
doaj   +2 more sources

Multimodality Medical Image Fusion Using Clustered Dictionary Learning in Non-Subsampled Shearlet Transform [PDF]

open access: yesDiagnostics, 2023
Imaging data fusion is becoming a bottleneck in clinical applications and translational research in medical imaging. This study aims to incorporate a novel multimodality medical image fusion technique into the shearlet domain.
Manoj Diwakar   +7 more
doaj   +2 more sources

Image Sequence Fusion and Denoising Based on 3D Shearlet Transform [PDF]

open access: goldJournal of Applied Mathematics, 2014
We propose a novel algorithm for image sequence fusion and denoising simultaneously in 3D shearlet transform domain. In general, the most existing image fusion methods only consider combining the important information of source images and do not deal ...
Liang Xu, Junping Du, Zhenhong Zhang
doaj   +2 more sources

Three-dimensional OCT Compressed Sensing using the shearlet transform under continuous trajectories sampling

open access: greenInformatics in Medicine Unlocked, 2020
Background: Optical Coherence Tomography (OCT) is an emerging medical imaging technology. It is well suited to various medical applications requiring tissue imaging with micrometer resolution and millimeter penetration depth such as in ophthalmology and ...
Bassel Haydar   +3 more
doaj   +3 more sources

Noise reduction by adaptive-SIN filtering for retinal OCT images [PDF]

open access: yesScientific Reports, 2021
Optical coherence tomography (OCT) images is widely used in ophthalmic examination, but their qualities are often affected by noises. Shearlet transform has shown its effectiveness in removing image noises because of its edge-preserving property and ...
Yan Hu   +4 more
doaj   +2 more sources

Bendlet Transform Based Adaptive Denoising Method for Microsection Images [PDF]

open access: yesEntropy, 2022
Magnetic resonance imaging (MRI) plays an important role in disease diagnosis. The noise that appears in MRI images is commonly governed by a Rician distribution. The bendlets system is a second-order shearlet transform with bent elements.
Shuli Mei   +5 more
doaj   +2 more sources

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