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Resolution Enhancement for Digital Off-Axis Hologram Reconstruction

  • Nazeer Muhammad
  • Dai-Gyoung Kim
Chapter
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 229)

Abstract

A new method of digital off-axis hologram reconstruction based on the Fresnel transform is proposed. A combination of composite filtering, Abbe’s limitation, and digital lens formulae has been used with an appropriate handling of Fresnel impulse response propagator. A clear image of microscopic object is efficiently reconstructed from hologram using a plane wave with involvement of electric field along bi-cubic interpolation in the final reconstruction step. In particular, the proposed method automatically suppresses the zero order term and virtual image. The image can be reconstructed with large size using interpolation scheme with the Haar wavelet. The proposed method facilitates the transverse high resolution of microscopic image, which has better applicability than other approaches. Moreover, the advantages of this method are its simplicity and convenience in data processing.

Keywords

Bi-cubic interpolation Digital holography Fresnel transforms Lens formula Microscopy Wavelet transforms 

Notes

Acknowledgments

This work was by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (NRF-2011-0026245).

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Division of Applied Mathematics, the ERICA campusHanyang UniversityAnsanSouth Korea

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