Radford, J. and Faccio, D. (2023) Information transport and limits of optical imaging in the highly diffusive regime. Physical Review Research, 5(2), L022008.
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Abstract
Imaging in the highly diffusive regime lies at the heart of various optical medical imaging technologies and other applications such as imaging through fog. However, due to the randomization of the photon propagation direction inside random, complex media, the spatial information of physiological features is degraded such that most diffuse optical imaging techniques are restricted to < 10 transport mean free paths ( ℓ ∗ ) . We present an information theoretical analysis of the limits of gathering information in the highly diffusive regime. Our results show that there is still information even when detection is performed at the single-photon level and beyond 200 ℓ ∗ (e.g., ∼ 12 cm tissue). Image reconstructions are enhanced when resolving measurements in both space and time domains. These results provide a general framework for extremely deep diffuse imaging scenarios, such as imaging through the body, and a general context for developing optimized image retrieval strategies.
| Item Type: | Articles |
|---|---|
| Additional Information: | The authors acknowledge funding from Engineering and Physical Sciences Research Council (EP-SRC, UK, Grant No. EP/T00097X/1). D.F. is supported by the Royal Academy of Engineering under the Chairs in Emerging Technologies scheme. J.R. is supported by the EP-SRC Centre for Doctoral Training in Intelligent Sensing and Measurement, Grant No. EP/L016753/1. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Faccio, Professor Daniele and Radford, Jack |
| Authors: | Radford, J., and Faccio, D. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physical Review Research |
| Publisher: | American Physical Society |
| ISSN: | 2643-1564 |
| ISSN (Online): | 2643-1564 |
| Published Online: | 07 April 2023 |
| Copyright Holders: | Copyright © 2023 The Authors |
| First Published: | First published in Physical Review Research 5(2): L022008 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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