scholarly journals A Review of Ghost Imaging via Sparsity Constraints

2018 ◽  
Vol 8 (8) ◽  
pp. 1379 ◽  
Author(s):  
Shensheng Han ◽  
Hong Yu ◽  
Xia Shen ◽  
Honglin Liu ◽  
Wenlin Gong ◽  
...  
Keyword(s):  
Research Work ◽  
Conventional Imaging ◽  
Ghost Imaging ◽  
Scattering Media ◽  
Mutual Correlation ◽  
Imaging Methods ◽  
Potential Applications ◽  
Sparsity Constraints ◽  
Diffraction Imaging ◽  
Field Correlation

Different from conventional imaging methods, which are based on the first-order field correlation, ghost imaging (GI) obtains the image information through high-order mutual-correlation of light fields from two paths with an object appearing in only one path. As a new optical imaging technology, GI not only provides us new capabilities beyond the conventional imaging methods, but also gives out a new viewpoint of imaging physical mechanism. It may be applied to many potential applications, such as remote sensing, snap-shot spectral imaging, thermal X-ray diffraction imaging and imaging through scattering media. In this paper, we reviewed mainly our research work of ghost imaging via sparsity constraints (GISC) and discussed the application and theory prospect of GISC concisely.

Sub-Rayleigh ghost imaging via sparsity constraints based on a digital micro-mirror device

2013 ◽  
Vol 377 (31-33) ◽  
pp. 1844-1847 ◽  
Author(s):  
Jie Chen ◽  
Wenlin Gong ◽  
Shensheng Han
Keyword(s):  
Ghost Imaging ◽  
Sparsity Constraints

Transient Radiative Transfer in Anisotropically Scattering Media Using Monotonicity-Preserving Schemes

2000 ◽  
Author(s):  
M. Sakami ◽  
K. Mitra ◽  
P.-F. Hsu
Keyword(s):  
Radiative Transfer ◽  
Research Work ◽  
Discrete Ordinates ◽  
Scattering Media ◽  
Discrete Ordinates Method ◽  
Piecewise Parabolic ◽  
Phase Functions ◽  
Monotonicity Preserving ◽  
Made In ◽  
Thick Medium

Abstract This research work deals with the analysis of transient radiative transfer in one-dimensional scattering medium. The time-dependant discrete ordinates method was used with an upwind monotonic scheme: the piecewise parabolic scheme. This scheme was chosen over a total variation diminishing version of the Lax-Wendroff scheme. These schemes were originally developed to solve Eulerian advection problem in hydrodynamics. The capability of these schemes to handle sharp discontinuity in a propagating electromagnetic wave front was compared. The accuracy and the efficiency of the discrete ordinates method associated with the piecewise parabolic advection scheme were studied. Comparisons with Monte Carlo and integral formulation methods show the accuracy and the efficiency of this proposed method. Parametric study for optically thin and thick medium, different albedos and phase functions is then made in the unsteady state zone.

Conventional Imaging Methods

2003 ◽  
pp. 55-134
Author(s):  
Marinus T. Vlaardingerbroek ◽  
Jacques A. den Boer
Keyword(s):  
Conventional Imaging ◽  
Imaging Methods

scholarly journals Spatial multiplexing reconstruction for Fourier-transform ghost imaging via sparsity constraints

2018 ◽  
Vol 26 (3) ◽  
pp. 2181 ◽  
Author(s):  
Ruiguo Zhu ◽  
Hong Yu ◽  
Ronghua Lu ◽  
Zhijie Tan ◽  
Shensheng Han
Keyword(s):  
Fourier Transform ◽  
Spatial Multiplexing ◽  
Ghost Imaging ◽  
Sparsity Constraints

Follow-up After Breast-Conserving Therapy: Comparison of Conventional Imaging Methods with MRI

2001 ◽  
Vol 61 (06) ◽  
pp. 396-399 ◽  
Author(s):  
R. Schulz-Wendtland ◽  
U. Aichinger ◽  
S. Krämer ◽  
U. Wilhelmi ◽  
M. Lell ◽  
...  
Keyword(s):  
Breast Conserving Therapy ◽  
Conventional Imaging ◽  
Imaging Methods

PHOTOCATALYTIC PROPERTY AND PHOTOCATALYTIC MECHANISM OF TiO2/Fe2O3 HYBRIDS FOR DEGRADATION OF ORGANIC DYES

2019 ◽  
Vol 26 (05) ◽  
pp. 1850196 ◽  
Author(s):  
CHUANSHENG CHEN ◽  
QUN FANG ◽  
SHIYI CAO ◽  
YONGXIANG YAN
Keyword(s):  
Photocatalytic Activity ◽  
Performance Enhancement ◽  
Organic Dyes ◽  
Sol Gel ◽  
Research Work ◽  
Photocatalytic Property ◽  
Ammonia Nitrogen ◽  
Solution Ph ◽  
Excellent Photocatalytic Activity ◽  
Potential Applications

In order to consider the performance enhancement and feasibility of practical application, this research work discussed the effects of different ions on the photocatalytic activity of TiO2/Fe2O3 hybrids in detail, involving H[Formula: see text], OH−, NH[Formula: see text], and NO[Formula: see text]. The TiO2/Fe2O3 hybrids were prepared by organic electrolyte-assisted sol–gel method under UV irradiation, and their function mechanisms were analyzed. Experiment results show that the resultant TiO2/Fe2O3 hybrids possess excellent photocatalytic activity and photocatalytic stability for degradation of organics under acid condition (pH 2–8). Notably, the NO[Formula: see text] ions could accelerate degradation of rhodamine B and methyl orange, and the recyclability of TiO2/Fe2O3 hybrids can be greatly enhanced in the co-existence of NO[Formula: see text] and NH[Formula: see text]. Meanwhile, this symbiosis of NO[Formula: see text] and NH[Formula: see text] is proven able to buffer the solution pH in photocatalysis. Furthermore, the prominent photocatalytic activity of TiO2/Fe2O3 hybrids for organic pollutants was mainly attributed to the formation of hydroxyl radicals (OH). The synthetic products show great potential applications in purification of air or wastewater that contains ammonia-nitrogen molecules.

Sign in / Sign up

Export Citation Format

Share Document