Chaudhari H, Kulkarni R, Kumar Sundaravadivelu P, Thummer RP, Bhuyan MK. Digital hologram reconstruction algorithm based on the Fractional Fourier transform in non-telecentric digital holographic microscopy.
OPTICS LETTERS 2024;
49:182-185. [PMID:
38194523 DOI:
10.1364/ol.504723]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/28/2023] [Indexed: 01/11/2024]
Abstract
A hologram reconstruction algorithm is proposed based on the fractional Fourier transform (FRFT) in non-telecentric digital holographic microscopy. The optimal fractional order representing the recorded hologram is estimated based on an evaluation metric. The FRFT-based hologram reconstruction enables noise robust amplitude and phase imaging with enhanced resolution. The effectiveness of the proposed approach is demonstrated in practical scenarios through both simulation and experimental results.
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