Wavelengths Encoded Illumination for Resolution Enhancement and Imaging Beyond Scattering Medium

Omer Wagner, Asaf Shahmoon, Zeev Zalevsky

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper a wavelength-multiplexing based super-resolving concept is presented to allow high resolution imaging through blood. We use temporally pulsed and spectrally wide-band laser while at its output we have special grating and a spatial 2-D transmission mask allowing to project wavelengths’ dependent high-resolution spatial orthogonal encoding patterns (different spatial patterns for each wavelength). The ballistic photons of the short temporal pulses allow the high-resolution encoding pattern to reach the inspected object through the scattering blood medium without being spatially blurred. The light is intentionally collected via low resolution optics. The high-resolution reconstruction can be obtained digitally by post processing or optically by passing the collected low-resolution data through a similar grating and 2-D mask which do an all-optical decoding. After summing all the images together, the super-resolved reconstruction through the highly scattering blood medium is formed.

Original languageEnglish
Title of host publicationNanoscale Imaging, Sensing, and Actuation for Biomedical Applications XX
EditorsDror Fixler, Ewa M. Goldys, Sebastian Wachsmann-Hogiu
PublisherSPIE
ISBN (Electronic)9781510658936
DOIs
StatePublished - 2023
EventNanoscale Imaging, Sensing, and Actuation for Biomedical Applications XX 2023 - San Francisco, United States
Duration: 30 Jan 2023 → …

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume12394
ISSN (Print)1605-7422

Conference

ConferenceNanoscale Imaging, Sensing, and Actuation for Biomedical Applications XX 2023
Country/TerritoryUnited States
CitySan Francisco
Period30/01/23 → …

Bibliographical note

Publisher Copyright:
© 2023 SPIE.

Keywords

  • Wavelength multiplexing
  • scattering medium
  • super resolution

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