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Proceedings Paper

Error Reduction In Two-Dimensional Pulse-Area Modulation, With Application To Computer-Generated Transparencies
Author(s): Martin J. Bastiaans
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Paper Abstract

The paper deals with the analysis of computer-generated half-tone transparencies that are realised as a regular array of area-modulated unit-height pulses and with the help of which we want to generate [via low-pass filtering] band-limited space functions by optical means. The mathematical basis for such transparencies is, of course, the well-known sampling theorem [1], which says that a band-limited func-tion y(x), say, [with x a two-dimensional spatial column vector] can be generated by properly low-pass filtering a regular array of Dirac functions whose weights are proportional to the required sample values yey(Xm) [with X the sampling matrix and m=(mi,m2)t an integer-valued column vector; the superscript t denotes transposition].

Paper Details

Date Published: 1 January 1987
PDF: 2 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967290
Show Author Affiliations
Martin J. Bastiaans, Technische Universiteit Eindhover (Netherlands)


Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age

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