Presentation
15 June 2023 Fast and high-resolution imaging through scattering scenes using single-shot synthetic wavelength holography (Conference Presentation)
Florian Willomitzer
Author Affiliations +
Abstract
Scattering severely limits the visual acuity of an imaging system. This talk discusses how diversity in illumination wavelength can be utilized to circumvent the problem of phase randomization in scattered light fields. Amongst other applications, the introduced method allows for holographic measurements of hidden objects through scattering media or around corners, or for interferometric measurements of macroscopic objects with rough surfaces. This is possible as the technique interrogates the scene at two closely spaced optical wavelengths and computationally assembles a complex “synthetic field” at a “synthetic wave,” which is used for further processing. As the synthetic wavelength is the beat wavelength of the two optical wavelengths, it can be picked orders of magnitudes larger, and the computationally assembled synthetic field becomes immune to the deleterious effect of speckle. During the talk, different flavors of the technique will be introduced, including a method to retrieve the complex synthetic field in single-shot.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Florian Willomitzer "Fast and high-resolution imaging through scattering scenes using single-shot synthetic wavelength holography (Conference Presentation)", Proc. SPIE PC12523, Computational Imaging VII , PC1252303 (15 June 2023); https://doi.org/10.1117/12.2667059
Advertisement
Advertisement
Back to Top