Results 121 to 130 of about 6,475 (267)

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

open access: yesInformatics 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  

Enhanced Offshore Wind Farm Geophysical Surveys: Shearlet-Sparse Regularization in Multi-Channel Predictive Deconvolution

open access: yesRemote Sensing
This study introduces a novel multi-channel predictive deconvolution method enhanced by Shearlet-based sparse regularization, aimed at improving the accuracy and stability of subsurface seismic imaging, particularly in offshore wind farm site assessments.
Yang Zhang   +5 more
doaj   +1 more source

Shearlet frames with short support

open access: yes, 2011
Compactly supported shearlets have been studied in both theory and applications. In this paper, we construct symmetric compactly supported shearlet systems based on pseudo splines of type II. Specially, using B-splines, we construct shearlet frame having explicit analytical forms which is important for applications.
Li, Song, Shen, Yi
openaire   +2 more sources

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

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

A Multiresolution Image Completion Algorithm for Compressing Digital Color Images

open access: yesJournal of Applied Mathematics, 2014
This paper introduces a new framework for image coding that uses image inpainting method. In the proposed algorithm, the input image is subjected to image analysis to remove some of the portions purposefully.
R. Gomathi, A. Vincent Antony Kumar
doaj   +1 more source

Optimal sparsity allows reliable system-aware restoration of fluorescence microscopy images. [PDF]

open access: yesSci Adv, 2023
Mandracchia B   +8 more
europepmc   +1 more source

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