Open AccessComplex object wave direct extraction method in off-axis digital holography
Author(s) -
Daesuk Kim,
Robert Magnusson,
Moonseob Jin,
Jaejong Lee,
Won Chegal
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.003658
Subject(s) - digital holography , holography , spatial filter , fast fourier transform , spatial frequency , optics , computer science , object (grammar) , phase (matter) , computer vision , artificial intelligence , physics , algorithm , quantum mechanics
Off-axis digital holography generally uses a 2D-FFT based spatial filtering method to extract the complex object wave from an off-axis hologram. In this paper, we describe a novel single exposure complex object wave extraction method which can provide a faster solution than the FFT based spatial filtering approach while maintaining the reconstructed phase image quality. And also, we show that the proposed direct filtering scheme can provide more robust filtering capability to the off-axis spatial carrier frequency variation than the spatial filtering method.