1 August 2002 Frequency analysis of digital holography with reconstruction by convolution
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Abstract
A coherent optical imaging system consisting of recording a digital hologram by a CCD array and numerical reconstruction of the complex wavefield by the convolution method is subjected to a frequency analysis. The point spread function of such a system is a sinc function whose width depends on the aperture defined by the CCD array and parameters of the transfer function used in the reconstruction. A narrow point spread function and thus a sharp reconstructed image can be obtained by the numerical concept of cascaded free-space propagation, which is introduced and demonstrated.
© (2002) Society of Photo-Optical Instrumentation Engineers (SPIE)
Thomas M. Kreis, "Frequency analysis of digital holography with reconstruction by convolution," Optical Engineering 41(8), (1 August 2002). https://doi.org/10.1117/1.1489678 . Submission:
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