The two-dimensional demodulation of a hologram using the 2D Hilbert transform requires the suppression of the background illumination beforehand. We propose an iterative algorithm based on a spiral phase function for this purpose.
© 2012 OSA
F. B. Soulard, A. Purvis, R. McWilliam, J. Cowling, G. Williams, J. J. Toriz-Garcia, N. L. Seed, and P. A. Ivey, "Iterative zero-order suppression from an off-axis hologram based on the 2D Hilbert transform," in Biomedical Optics and 3-D Imaging, OSA Technical Digest (Optical Society of America, 2012), paper DSu3C.4.
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