Multiplexed coherent optical processor for calculating generalized moments

J. A. Blodgett, R. A. Athale, Clyde Lee Giles, H. H. Szu

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A coherent optical processor capable of calculating generalized moments of a two-dimensional pattern is described. A spatial-frequency multiplexing scheme is used to provide for parallel computation of multiple moments. The use of a computer-generated holographic mask permits complete flexibility in choosing moment-generating functions; e.g., the functions could be complex or have a predetermined weighting function. Experimentally, calculation of five geometric moments (corresponding to x, y, xy, x2, and y2) is demonstrated for simple objects. The special features of the proposed coherent optical processor and its space-bandwidth requirements are also discussed.

Original languageEnglish (US)
Pages (from-to)7-9
Number of pages3
JournalOptics Letters
Volume7
Issue number1
DOIs
StatePublished - Jan 1 1982

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central processing units
moments
weighting functions
multiplexing
flexibility
masks
bandwidth
requirements

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Blodgett, J. A. ; Athale, R. A. ; Giles, Clyde Lee ; Szu, H. H. / Multiplexed coherent optical processor for calculating generalized moments. In: Optics Letters. 1982 ; Vol. 7, No. 1. pp. 7-9.
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Multiplexed coherent optical processor for calculating generalized moments. / Blodgett, J. A.; Athale, R. A.; Giles, Clyde Lee; Szu, H. H.

In: Optics Letters, Vol. 7, No. 1, 01.01.1982, p. 7-9.

Research output: Contribution to journalArticle

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