Results 41 to 50 of about 5,473 (223)

Asymptotic Analysis of Inpainting via Universal Shearlet Systems [PDF]

open access: yes, 2014
Recently introduced inpainting algorithms using a combination of applied harmonic analysis and compressed sensing have turned out to be very successful.
Genzel, Martin, Kutyniok, Gitta
core   +2 more sources

A Joint Framework for Seismic Signal Denoising Using Total Generalized Variation and Shearlet Transform

open access: yesIEEE Access, 2021
Seismic exploration is a remote-sensing tool applied in a great many projects for engineering and resource-exploration purposes. Random noise suppression is one of the key steps in seismic-signal processing, especially those with important details and ...
Xiannan Wang, Jian Zhang, Hao Cheng
doaj   +1 more source

Image interpolation using Shearlet based iterative refinement [PDF]

open access: yes, 2013
This paper proposes an image interpolation algorithm exploiting sparse representation for natural images. It involves three main steps: (a) obtaining an initial estimate of the high resolution image using linear methods like FIR filtering, (b) promoting ...
Kutyniok, G.   +5 more
core   +2 more sources

A Convolution-Based Shearlet Transform in Free Metaplectic Domains

open access: yesJournal of Mathematics, 2021
The free metaplectic transformation (FMT) is a multidimensional integral transform that encompasses a broader range of integral transforms, from the classical Fourier to the more recent linear canonical transforms. The aim of this study is to introduce a
Tarun K. Garg   +3 more
doaj   +1 more source

All the Groups of Signal Analysis from the (1+1)-affine Galilei Group [PDF]

open access: yes, 2011
We study the relationship between the (1+1)-affine Galilei group and four groups of interest in signal analysis and image processing, viz., the wavelet or the affine group of the line, the Weyl-Heisenberg, the shearlet and the Stockwell groups.
Ali, S. Twareque   +1 more
core   +2 more sources

Introduction to Shearlets [PDF]

open access: yes, 2012
Shearlets emerged in recent years among the most successful frameworks for the efficient representation of multidimensional data. Indeed, after it was recognized that traditional multiscale methods are not very efficient at capturing edges and other anisotropic features which frequently dominate multidimensional phenomena, several methods were ...
Gitta Kutyniok, Demetrio Labate
openaire   +1 more source

Otherness feature extraction method for underground image based on Shearlet transform

open access: yesGong-kuang zidonghua, 2016
For the problem that face images collected underground are susceptible to dust interference and most feature extraction methods are sensitive to noise, an otherness feature extraction method for underground image based on Shearlet transform was proposed.
HUANG Yu, ZHANG Yingjun, PAN Lihu
doaj   +1 more source

Infrared and Visible Image Fusion Based on Co-Occurrence Analysis Shearlet Transform

open access: yesRemote Sensing, 2022
This study based on co-occurrence analysis shearlet transform (CAST) effectively combines the latent low rank representation (LatLRR) and the regularization of zero-crossing counting in differences to fuse the heterogeneous images.
Biao Qi   +6 more
semanticscholar   +1 more source

Full-Field Vibration Measurement Using Camera Through Shearlet System

open access: yesMATEC Web of Conferences, 2018
Traditionally, vibration measurement is done using an accelerometer or Laser Doppler Vibrometer, which is an intrusive and single point measurement respectively.
Wee C.A., Ngali M. Z.
doaj   +1 more source

Morphological Edge Detection Algorithm of Colon Pathological Sections Based on Shearlet

open access: yesJournal of Mathematics, 2022
This paper proposes an idea of combining the Meyer Shearlet and mathematical morphology to produce the edge detection of pathological sections of the colon. First, the method of constructing a class of sufficiently smooth sigmoid functions along with its
Shasha Li   +3 more
doaj   +1 more source

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