Results 71 to 80 of about 2,474,827 (184)

Image Sequence Fusion and Denoising Based on 3D Shearlet Transform

open access: yesJournal 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   +1 more source

SAR Interferogram Filtering of Shearlet Domain Based on Interferometric Phase Statistics

open access: yesApplied Sciences, 2017
This paper presents a new filtering approach for Synthetic Aperture Radar (SAR) interferometric phase noise reduction in the shearlet domain, depending on the coherent statistical characteristics.
Yonghong He   +5 more
doaj   +1 more source

Random Noise Reduction in Seismic Data by Using Bidimensional Empirical Mode Decomposition and Shearlet Transform

open access: yesIEEE Access, 2019
Due to the limitation of the seismic data acquisition environment and instrument, seismic data are often subjected to random noise interference. At the same time, random noise is inevitably introduced in the processing of seismic data.
Wen-Long Hou   +5 more
doaj   +1 more source

An automated fracture trace detection technique using the complex shearlet transform [PDF]

open access: yesSolid Earth, 2019
Representing fractures explicitly using a discrete fracture network (DFN) approach is often necessary to model the complex physics that govern thermo-hydro-mechanical–chemical processes (THMC) in porous media.
R. Prabhakaran   +4 more
doaj   +1 more source

A Novel Multi-Focus Image Fusion Method Based on Dual-Tree Shearlet Transform

open access: yesInternational Journal of Advanced Robotic Systems, 2015
In this paper, a multi-focus image fusion method based on Dual-Tree Compactly Supported Shearlet Transform (DT CSST) and Direction Decision Map (DDM) is proposed.
Chang Duan, Shuai Wang, Qihong Huang
doaj   +1 more source

3D shearlet-based regulariation for inverse problems with an application to industrial X-ray computed tomography

open access: yese-Journal of Nondestructive Testing
Various regularization terms have been proposed for inverse problems. In this work, we investigate the shearlet-based regularization in the context of sparse-view X-ray computed tomography(XCT) reconstruction of industrial parts.
Xiaoya Chen   +3 more
doaj   +1 more source

Construction of Meyer Wavelet Using Fully Smooth Sigmiod Function

open access: yesJournal of Harbin University of Science and Technology, 2019
In order to obtain better smooth effect in signal or image reconstruction, the regularity or continuous differentiability of wavelet must be increased as much as possible.
SHAO Yun-hong, DENG Cai-xia, HE Peng
doaj   +1 more source

An Infrared and Visible Image Fusion Algorithm Based on LSWT-NSST

open access: yesIEEE Access, 2020
Regarding the problems of image distortion, edge blurring, Gibbs phenomena in the traditional wavelet transform algorithm and the loss of subtle features in the Non-Subsampled Shearlet Transform (NSST), and considering the physical characteristics of ...
Li Junwu, Binhua Li, Yaoxi Jiang
doaj   +1 more source

Asymptotic Analysis of Shearlet Transfom for Inpainting

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
Supply of missing data, also known as inpainting, is an important application of image processing.Wavelets are commonly used for inpainting algorithms. Shearlet transform which is an affinetransformation is the improvement of the wavelet transform.
Süleyman Çetinkaya   +2 more
doaj   +1 more source

The algorithm for extracting surface defects from ZrO2 ceramic bearing balls using shearlet transform image enhancement

open access: yesAIP Advances
To solve the problems of noise coverage defect and low contrast between the defect and the background of ZrO2 ceramic bearing balls, a surface defect extraction algorithm based on shearlet transform image enhancement for ZrO2 ceramic bearing balls is ...
Dahai Liao   +5 more
doaj   +1 more source

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