Fusing electrical and elasticity imaging

Philos Trans A Math Phys Eng Sci. 2021 Jun 28;379(2200):20200194. doi: 10.1098/rsta.2020.0194. Epub 2021 May 10.

Abstract

Electrical and elasticity imaging are promising modalities for a suite of different applications, including medical tomography, non-destructive testing and structural health monitoring. These emerging modalities are capable of providing remote, non-invasive and low-cost opportunities. Unfortunately, both modalities are severely ill-posed nonlinear inverse problems, susceptive to noise and modelling errors. Nevertheless, the ability to incorporate complimentary datasets obtained simultaneously offers mutually beneficial information. By fusing electrical and elastic modalities as a joint problem, we are afforded the possibility to stabilize the inversion process via the utilization of auxiliary information from both modalities as well as joint structural operators. In this study, we will discuss a possible approach to combine electrical and elasticity imaging in a joint reconstruction problem giving rise to novel multi-modality applications for use in both medical and structural engineering. This article is part of the theme issue 'Synergistic tomographic image reconstruction: part 1'.

Keywords: electrical impedance tomography; joint reconstruction; nonlinear inverse problems; quasi-static elasticity imaging.

MeSH terms

  • Computer Simulation
  • Elasticity
  • Elasticity Imaging Techniques / methods*
  • Elasticity Imaging Techniques / statistics & numerical data
  • Electric Impedance*
  • Humans
  • Image Processing, Computer-Assisted / methods*
  • Image Processing, Computer-Assisted / statistics & numerical data
  • Mathematical Concepts
  • Multimodal Imaging / methods
  • Multimodal Imaging / statistics & numerical data
  • Nonlinear Dynamics
  • Tomography / methods*
  • Tomography / statistics & numerical data