Comparison of numerical image reconstruction methods in holography

Zoltan Garaguly, Miklos Kozlovszky, Levente Kovacs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In favour of the reconstruction of the real or virtual image's phase and intensity, the complete digital holographic images are being processed. This reconstruction takes place with the numerical definition of the diffraction integral. One of the possible realization is the Fresnel approximation, which employs a sole Fourier-transformation. Another method is to interpret the diffraction formula as a convolution integral, and if we calculate the formula, it will be doubled or tripled because of the transformation. The impulse response of wave fields should be represented in this convolution approach, from which the Fourier transform can be immediately determined. The impulse response as well as the Fourier transform can be immediately specified, or well approximated. The essential distinction between the Fresnel and convolution approach is the different size of resultant images. Furthermore, this size in case of the Fresnel process depends on the distance of the object and the sensor, as well as the wavelength of the illuminating light; but in the other case, it is invalid.

Original languageEnglish
Title of host publicationIEEE 30th Jubilee Neumann Colloquium, NC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages65-70
Number of pages6
Volume2018-January
ISBN (Electronic)9781538646366
DOIs
Publication statusPublished - Jan 17 2018
Event30th IEEE Jubilee Neumann Colloquium, NC 2017 - Budapest, Hungary
Duration: Nov 24 2017Nov 25 2017

Other

Other30th IEEE Jubilee Neumann Colloquium, NC 2017
CountryHungary
CityBudapest
Period11/24/1711/25/17

    Fingerprint

ASJC Scopus subject areas

  • Computer Science Applications
  • Health Informatics

Cite this

Garaguly, Z., Kozlovszky, M., & Kovacs, L. (2018). Comparison of numerical image reconstruction methods in holography. In IEEE 30th Jubilee Neumann Colloquium, NC 2017 (Vol. 2018-January, pp. 65-70). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NC.2017.8263252