Breaking the Limitations with Sparse Inputs by Variational Frameworks (BLIss) in Terahertz Super-Resolution 3D Reconstruction



Zhang, Yiyao ORCID: 0000-0003-1166-6935, Chen, Ke ORCID: 0000-0002-6093-6623 and Yang, Shang Hua
(2024) Breaking the Limitations with Sparse Inputs by Variational Frameworks (BLIss) in Terahertz Super-Resolution 3D Reconstruction. Optics Express, 32 (9). p. 15078.

Access the full-text of this item by clicking on the Open Access link.

Abstract

<jats:p>Data acquisition, image processing, and image quality are the long-lasting issues for terahertz (THz) 3D reconstructed imaging. Existing methods are primarily designed for 2D scenarios, given the challenges associated with obtaining super-resolution (SR) data and the absence of an efficient SR 3D reconstruction framework in conventional computed tomography (CT). Here, we demonstrate BLIss, a new approach for THz SR 3D reconstruction with sparse 2D data input. BLIss seamlessly integrates conventional CT techniques and variational framework with the core of the adapted Euler-Elastica-based model. The quantitative 3D image evaluation metrics, including the standard deviation of Gaussian, mean curvatures, and the multi-scale structural similarity index measure (MS-SSIM), validate the superior smoothness and fidelity achieved with our variational framework approach compared with conventional THz CT modal. Beyond its contributions to advancing THz SR 3D reconstruction, BLIss demonstrates potential applicability in other imaging modalities, such as X-ray and MRI. This suggests extensive impacts on the broader field of imaging applications.</jats:p>

Item Type: Article
Uncontrolled Keywords: Bioengineering, Biomedical Imaging
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 09 Apr 2024 07:29
Last Modified: 01 May 2024 13:09
DOI: 10.1364/oe.510670
Open Access URL: https://doi.org/10.1364/OE.510670
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3180144