Results 11 to 20 of about 25,862 (211)

DVDeconv: An Open-Source MATLAB Toolbox for Depth-Variant Asymmetric Deconvolution of Fluorescence Micrographs

open access: yesCells, 2021
To investigate the cellular structure, biomedical researchers often obtain three-dimensional images by combining two-dimensional images taken along the z axis. However, these images are blurry in all directions due to diffraction limitations.
Boyoung Kim
doaj   +1 more source

Variational semi-blind sparse deconvolution with orthogonal kernel bases and its application to MRFM [PDF]

open access: yes, 2013
We present a variational Bayesian method of joint image reconstruction and point spread function (PSF) estimation when the PSF of the imaging device is only partially known.
Almeida   +39 more
core   +10 more sources

Compressive Blind Image Deconvolution [PDF]

open access: yesIEEE Transactions on Image Processing, 2013
We propose a novel blind image deconvolution (BID) regularization framework for compressive sensing (CS) based imaging systems capturing blurred images. The proposed framework relies on a constrained optimization technique, which is solved by a sequence of unconstrained sub-problems, and allows the incorporation of existing CS reconstruction algorithms
Bruno, Amizic   +3 more
openaire   +2 more sources

Blind Deconvolution with Scale Ambiguity

open access: yesApplied Sciences, 2020
Recent years have witnessed significant advances in single image deblurring due to the increasing popularity of electronic imaging equipment. Most existing blind image deblurring algorithms focus on designing distinctive image priors for blur kernel ...
Wanshu Fan   +3 more
doaj   +1 more source

Deep learning for blind structured illumination microscopy

open access: yesScientific Reports, 2022
Blind-structured illumination microscopy (blind-SIM) enhances the optical resolution without the requirement of nonlinear effects or pre-defined illumination patterns.
Emmanouil Xypakis   +5 more
doaj   +1 more source

Blind signal deconvolution based on pulsed neuron model [PDF]

open access: yesITM Web of Conferences, 2019
In this paper, we consider the vector-matrix model of a pulsed neuron, focused on solving problems of digital signal processing. We extend the application domain of the model to the blind signal deconvolution problem.
Bondarev Vladimir
doaj   +1 more source

Focused Blind Deconvolution

open access: yesIEEE Transactions on Signal Processing, 2019
We introduce a novel multichannel blind deconvolution (BD) method that extracts sparse and front-loaded impulse responses from the channel outputs, i.e., their convolutions with a single arbitrary source. A crucial feature of this formulation is that it doesn't encode support restrictions on the unknowns, unlike most prior work on BD. The indeterminacy
Pawan Bharadwaj   +2 more
openaire   +3 more sources

Research on Fault Extraction Method of CYCBD Based on Seagull Optimization Algorithm

open access: yesShock and Vibration, 2021
Maximum cyclostationarity blind deconvolution (CYCBD) can recover the periodic impulses from mixed fault signals comprised by noise and periodic impulses. In recent years, blind deconvolution has been widely used in fault diagnosis.
Qianqian Zhang   +4 more
doaj   +1 more source

Semi-blind Sparse Image Reconstruction with Application to MRFM [PDF]

open access: yes, 2012
We propose a solution to the image deconvolution problem where the convolution kernel or point spread function (PSF) is assumed to be only partially known.
Dobigeon, Nicolas   +2 more
core   +4 more sources

New Lagrange Multipliers for the Blind Adaptive Deconvolution Problem Applicable for the Noisy Case

open access: yesEntropy, 2016
Recently, a new blind adaptive deconvolution algorithm was proposed based on a new closed-form approximated expression for the conditional expectation (the expectation of the source input given the equalized or deconvolutional output) where the output ...
Monika Pinchas
doaj   +1 more source

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