[en] We propose a reconstruction technique to off-axis Terahertz digital holography that jointly reconstructs the object field and the reference amplitude. The objective function combining data-fidelity and wavelet-based regularization terms is optimized with an ADMM-inspired approach.
Research Center/Unit :
CSL - Centre Spatial de Liège - ULiège STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Mathematics Computer science
Author, co-author :
Kirkove, Murielle ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Zhao, Yuchen ; Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Leblanc, Olivier
Jacques, Laurent
Georges, Marc ; Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Language :
English
Title :
An ADMM-inspired image reconstruction for Terahertz off-axis digital holography
Publication date :
16 August 2023
Event name :
Imaging and Applied Optics Congress
Event organizer :
Optical Society of America (OSA)
Event place :
Boston, United States
Event date :
from 14 to 17 Augustus 2023
Audience :
International
Main work title :
Proceedings Optica Imaging Congress (3D, COSI, DH, FLatOptics, IS, pcAOP)
Publisher :
Optica Imaging Congress, Boston, United States
Peer review/Selection committee :
Editorial reviewed
Name of the research project :
TERA4ALL
Funders :
ERDF - European Regional Development Fund Région wallonne F.R.S.-FNRS - Fonds de la Recherche Scientifique
Funding text :
European Regional Development Fund/Wallonia region (2014-
2020 “En Mieux” program, project TERA4ALL), “Fonds de la Recherche
Scientifique – FNRS” (grant T.0136.20, project Learn2Sense).
L. Valzania, Y. Zhao, L. Rong, D. Wang, M. Georges, E. Hack, and P. Zolliker, “THz coherent lensless imaging,” Appl. Opt. 58, G256—-G275 (2019).
M. Kirkove, Y. Zhao, and M. P. Georges, “Inverse-problem-based algorithm for sparse reconstruction of Terahertz off-axis holograms,” in OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP), (Optica Publishing Group, 2021), 4, p. DM1B.4.
A. A. Bourquard, N. Pavillon, E. Bostan, C. Depeursinge, and M. Unser, “A practical inverse-problem approach to digital holographic reconstruction,” Opt. Express 21, 3417 (2013).
N. Parikh and S. Boyd, “Proximal algorithms,” Found. Trends Optim. 1, 127–239 (2014).
C. Schretter, D. Blinder, S. Bettens, H. Ottevaere, and P. Schelkens, “Regularized non-convex image reconstruction in digital holographic microscopy,” Opt. Express 25, 16491 (2017).
