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Sparse Reconstruction of Sound Field Using Bayesian Compressive Sensing and Equivalent Source Method [PDF]

open access: yesSensors, 2023
To solve the problem of sound field reconstruction with fewer measurement points, a sound field reconstruction method based on Bayesian compressive sensing is proposed.
Yue Xiao   +4 more
doaj   +2 more sources

Gradient Projection with Approximate L0 Norm Minimization for Sparse Reconstruction in Compressed Sensing [PDF]

open access: yesSensors, 2018
In the reconstruction of sparse signals in compressed sensing, the reconstruction algorithm is required to reconstruct the sparsest form of signal. In order to minimize the objective function, minimal norm algorithm and greedy pursuit algorithm are most ...
Ziran Wei   +5 more
doaj   +2 more sources

Nonparametric Statistical Thresholding for Sparse Magnetoencephalography Source Reconstructions [PDF]

open access: yesFrontiers in Neuroscience, 2012
Uncovering brain activity from MEG data requires solving an ill-posed inverse problem, greatly confounded by noise, interference, and correlated sources.
Julia Parsons Owen   +4 more
doaj   +3 more sources

Sparse Reconstruction for Micro Defect Detection in Acoustic Micro Imaging [PDF]

open access: yesSensors, 2016
Acoustic micro imaging has been proven to be sufficiently sensitive for micro defect detection. In this study, we propose a sparse reconstruction method for acoustic micro imaging.
Yichun Zhang   +6 more
doaj   +2 more sources

Near-Field 3D Sparse SAR Direct Imaging with Irregular Samples

open access: yesRemote Sensing, 2022
Sparse imaging is widely used in synthetic aperture radar (SAR) imaging. Compared with the traditional matched filtering (MF) methods, sparse SAR imaging can directly image the scattered points of a target and effectively reduce the sidelobes and clutter
Shiqi Xing   +5 more
doaj   +1 more source

Sparse Reconstruction for Near-Field MIMO Radar Imaging Using Fast Multipole Method

open access: yesIEEE Access, 2021
Radar imaging using multiple input multiple output systems are becoming popular recently. These applications typically contain a sparse scene and the imaging system is challenged by the requirement of high quality real-time image reconstruction from ...
Emre A. Miran   +2 more
doaj   +1 more source

Dynamic Orthogonal Matching Pursuit for Sparse Data Reconstruction

open access: yesIEEE Open Journal of Signal Processing, 2023
The orthogonal matching pursuit (OMP) is one of the mainstream algorithms for sparse data reconstruction or approximation. It acts as a driving force for the development of several other greedy methods for sparse data reconstruction, and it also plays a ...
Yun-Bin Zhao, Zhi-Quan Luo
doaj   +1 more source

Multi-Objective Sparse Reconstruction With Transfer Learning and Localized Regularization

open access: yesIEEE Access, 2020
Multi-objective sparse reconstruction methods have shown strong potential in sparse reconstruction. However, most methods are computationally expensive due to the requirement of excessive functional evaluations.
Bai Yan   +3 more
doaj   +1 more source

Sparse signal reconstruction by swarm intelligence algorithms

open access: yesEngineering Science and Technology, an International Journal, 2021
This study introduces a new technique for sparse signal reconstruction. In general, there are two classes of algorithms in the recovery of sparse signals: greedy approaches and l1-minimization methods. The proposed method employs swarm intelligence based
Murat Emre Erkoç, Nurhan Karaboğa
doaj   +1 more source

Color Image Super-resolution Reconstruction Based on Color Constraint and Nonlocal Sparse Representation [PDF]

open access: yesJisuanji gongcheng, 2019
Color image super-resolution reconstruction method based on sparse representation model usually adopts sparse coding process based on image blocks,which easily leads to the instability of sparse representation,and the problems of detail blurring and ...
XU Zhigang, MA Qiang, ZHU Honglei, ZHANG Moyi
doaj   +1 more source

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