Optical spatial image processor based on aliasing of pseudo-periodic sampling
Authors: Zlotnik A., Paturzo M., Ferraro P., Zalevsky Z.
Autors Affiliation: Bar Ilan Univ, Sch Engn, IL-52900 Ramat Gan, Israel
CNR, Ist Nazl Ott Applicata, Sez Napoli, I-80078 Pozzuoli, Italy
Abstract: 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.
Journal/Review: JOURNAL OF SUPERCOMPUTING
Volume: 62 (2) Pages from: 673 to: 680
More Information: SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
DOI: 10.1007/s11227-010-0515-yKeyWords: Optical filtering; Aliasing; Pseudo-periodic sampling; Theory & Methods; Engineering; Computer ScienceDOI: 10.1007/s11227-010-0515-yConnecting to view paper tab on IsiWeb: Click here