Optical spatial image processor based on aliasing of pseudo-periodic sampling

Alexander Zlotnik, Melania Paturzo, Pietro Ferraro, Zeev Zalevsky

Research output: Contribution to journalArticlepeer-review


In this paper, we present a new configuration for a real-time spatial image processor that is based upon a spatially incoherent imaging setup in which a grating is attached to the object plane. By proper adjusting of the magnification of the imaging system to the spatial period of the grating and the sampling grid of the camera, the aliasing effect along the non-uniform digital sampling realizes a tunable spectral distribution that is applied over the spectrum of the object. Preliminary numerical demonstration of the operation principle is provided.

Original languageEnglish
Pages (from-to)673-680
Number of pages8
JournalJournal of Supercomputing
Issue number2
StatePublished - Nov 2012


  • Aliasing
  • Optical filtering
  • Pseudo-periodic sampling


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