Tracking moving objects through scattering media via speckle correlations.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 36182942.
- Also identified by DOI 10.1038/s41467-022-33470-y and PMC identifier 9526741.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Scattering can rapidly degrade our ability to form an optical image, to the point where only speckle-like patterns can be measured. Truly non-invasive imaging through a strongly scattering obstacle is difficult, and usually reliant on a computationally intensive numerical reconstruction. In this work we show that, by combining the cross-correlations of the measured speckle pattern at different times, it is possible to track a moving object with minimal computational effort and over a large field of view.