Creating an extended focus image of a tilted object in Fourier digital holography.
We present a new method to numerically reconstruct images on a tilted plane by digital holography in Fourier configuration. The proposed technique is based on a quadratic deformation of spatial coordinates of the digital hologram. By this approach we demonstrate that it is possible to recover the extended focus image (EFI) of a tilted object in a single reconstruction step from the deformed hologram.
Paturzo
Melania
M
CNR - Istituto Nazionale di Ottica Applicata & Istituto di Cibernetica, via Campi Flegrei 34, 80078-Pozzuoli, NA, Italy. melania.paturzo@inoa.it
Ferraro
Pietro
P
D000465:Algorithms; D005583:Fourier Analysis; D006696:Holography / Q000379:methods*; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D012815:Signal Processing, Computer-Assisted