64 citations · 168 across the 27 of their papers we have counts for
27 papers
PE-CSNet: An equivariant network architecture with learnable patch-based sparse representation
Kai Li, Haitao Long, Bo Zhang +2
Compressive sensing (CS) enables accurate signal reconstruction from sparse measurements and is widely applied in medical imaging, remote sensing, and image compression. However, d…
Convergent and efficient iteratively regularized contrast source inversion-type methods for inverse medium scattering problems
Qiao Hu, Bo Zhang, Haiwen Zhang
The contrast source inversion (CSI) method and the subspace-based optimization method (SOM) are first proposed in 1997 and 2009, respectively, and subsequently modified. The two me…
A deep learning approach to inverse medium scattering: Learning regularizers from a direct imaging method
Kai Li, Bo Zhang, Haiwen Zhang
This paper aims to solve numerically the two-dimensional inverse medium scattering problem with far-field data. This is a challenging task due to the severe ill-posedness and stron…
Direct imaging methods for reconstructing a locally rough interface from phaseless total-field data or phased far-field data
Long Li, Jiansheng Yang, Bo Zhang +1
This paper is concerned with the problem of inverse scattering of time-harmonic acoustic plane waves by a two-layered medium with a locally rough interface in 2D. A direct imaging…
A Nyström Method for Scattering by a Two-layered Medium with a Rough Boundary
Haiyang Liu, Long Li, Jiansheng Yang +2
This paper is concerned with problems of scattering of time-harmonic acoustic waves by a two-layered medium with a non-locally perturbed boundary (called a rough boundary in this p…
Uniform far-field asymptotics of the two-layered Green function in 2D and application to wave scattering in a two-layered medium
Long Li, Jiansheng Yang, Bo Zhang +1
In this paper, we establish new results for the uniform far-field asymptotics of the two-layered Green function (together with its derivatives) in 2D in the frequency domain. To th…
Reconstruction of inhomogeneous media by an iteration algorithm with a learned projector
Kai Li, Bo Zhang, Haiwen Zhang
This paper is concerned with the inverse problem of reconstructing an inhomogeneous medium from the acoustic far-field data at a fixed frequency in two dimensions. This inverse pro…
Uniqueness in inverse diffraction grating problems with infinitely many plane waves at a fixed frequency
Xiaoxu Xu, Guanghui Hu, Bo Zhang +1
This paper is concerned with the inverse diffraction problems by a periodic curve with Dirichlet boundary condition in two dimensions. It is proved that the periodic curve can be u…
The Nyström method for elastic wave scattering by unbounded rough surfaces
Jianliang Li, Xiaoli Liu, Bo Zhang +1
We consider the numerical algorithm for the two-dimensional time-harmonic elastic wave scattering by unbounded rough surfaces with Dirichlet boundary condition. A Nyström method is…
Imaging of buried obstacles in a two-layered medium with phaseless far-field data
Long Li, Jiansheng Yang, Bo Zhang +1
The inverse problem we consider is to reconstruct the location and shape of buried obstacles in the lower half-space of an unbounded two-layered medium in two dimensions from phase…
An approximate factorization method for inverse acoustic scattering with phaseless total-field data
Bo Zhang, Haiwen Zhang
This paper is concerned with the inverse acoustic scattering problem with phaseless total-field data at a fixed frequency. An approximate factorization method is developed to numer…
Uniqueness in inverse electromagnetic scattering problem with phaseless far-field data at a fixed frequency
Xiaoxu Xu, Bo Zhang, Haiwen Zhang
This paper is concerned with uniqueness in inverse electromagnetic scattering with phaseless far-field pattern at a fixed frequency. In our previous work [{\em SIAM J. Appl. Math.}…
Uniqueness in inverse acoustic and electromagnetic scattering with phaseless near-field data at a fixed frequency
Xiaoxu Xu, Bo Zhang, Haiwen Zhang
This paper is concerned with uniqueness results in inverse acoustic and electromagnetic scattering problems with phaseless total-field data at a fixed frequency. Motivated by our p…
A novel integral equation for scattering by locally rough surfaces and application to the inverse problem: the Neumann case
Fenglong Qu, Bo Zhang, Haiwen Zhang
This paper is concerned with direct and inverse scattering by a locally perturbed infinite plane (called a locally rough surface in this paper) on which a Neumann boundary conditio…
Locating a complex inhomogeneous medium with an approximate factorization method
Fenglong Qu, Haiwen Zhang
Consider the inverse problem of scattering of time-harmonic acoustic waves by an inhomogeneous medium with complex refractive index. We show that an approximate factorization metho…
Uniqueness and direct imaging method for inverse scattering by locally rough surfaces with phaseless near-field data
Xiaoxu Xu, Bo Zhang, Haiwen Zhang
This paper is concerned with inverse scattering of plane waves by a locally perturbed infinite plane (which is called a locally rough surface) with the modulus of the total-field d…
Uniqueness in inverse scattering problems with phaseless far-field data at a fixed frequency. II
Xiaoxu Xu, Bo Zhang, Haiwen Zhang
This paper is concerned with uniqueness in inverse acoustic scattering with phaseless far-field data at a fixed frequency. In our previous work ({\em SIAM J. Appl. Math. \bf78} (20…
Fast imaging of scattering obstacles from phaseless far-field measurements at a fixed frequency
Bo Zhang, Haiwen Zhang
This paper is concerned with the inverse obstacle scattering problem with phaseless far-field data at a fixed frequency. The main difficulty of this problem is the so-called transl…
Near-field imaging of an unbounded elastic rough surface with a direct imaging method
Xiaoli Liu, Bo Zhang, Haiwen Zhang
This paper is concerned with the inverse scattering problem of time-harmonic elastic waves by an unbounded rigid rough surface. A direct imaging method is developed to reconstruct…
A direct imaging method for inverse elastic scattering by unbounded rigid rough surfaces
Guanghui Hu, Xiaoli Liu, Bo Zhang +1
This paper is concerned with the inverse time-harmonic elastic scattering problem of recovering unbounded rough surfaces in two dimensions. We assume that elastic plane waves with…
A direct imaging method for inverse scattering by unbounded rough surfaces
Xiaoli Liu, Bo Zhang, Haiwen Zhang
This paper is concerned with the inverse scattering problem by an unbounded rough surface. A direct imaging method is proposed to reconstruct the rough surface from the scattered n…
Uniqueness in inverse scattering problems with phaseless far-field data at a fixed frequency
Xiaoxu Xu, Bo Zhang, Haiwen Zhang
This paper is concerned with uniqueness in inverse acoustic scattering with phaseless far-field data at a fixed frequency. The main difficulty of this problem is the so-called tran…
Imaging of locally rough surfaces from intensity-only far-field or near-field data
Bo Zhang, Haiwen Zhang
This paper is concerned with a nonlinear imaging problem, which aims to reconstruct a locally perturbed, perfectly reflecting, infinite plane from intensity-only (or phaseless) far…
Recovering scattering obstacles by multi-frequency phaseless far-field data
Bo Zhang, Haiwen Zhang
It is well known that the modulus of the far-field pattern (or phaseless far-field pattern) is invariant under translations of the scattering obstacle if only one plane wave is use…