Keywords
Liquid crystal spatial light modulator, Even pulse train transform, DC-biased square-wave basis, Incoherent scene spatial frequency analysis, Correlation-based optical filtering
Abstract
A liquid crystal spatial light modulator (SLM) was used as a programmable reticle in an optical system. The function of the SLM system was to perform a spatial frequency analysis on an incoherent input scene, by means of successive correlations over a set of spatial basis functions. Because of physical modulator characteristics, the basis function set available from the reticle was a set of DC-biased square waves, rather than the sinusoids used in a usual Fourier analysis. This led to the “even pulse train transform” being performed on the input images. Experimental examples of this frequency analysis are given for two sample scenes, a square aperture and a double slit aperture.
Notes
If this is your thesis or dissertation, and want to learn how to access it or for more information about readership statistics, contact us at STARS@ucf.edu
Graduation Date
1987
Semester
Fall
Advisor
Boreman, Glenn
Degree
Master of Science (M.S.)
College
College of Engineering
Format
Pages
111 pages
Language
English
Rights
Public Domain
Length of Campus-only Access
None
Access Status
Masters Thesis (Open Access)
Identifier
DP0020594
Subjects
Light modulators; Optical correlators; Fourier transform optics; Optical data processing--Research; Liquid crystals--Optical properties
STARS Citation
Deschenes, Michael A., "Use of a Liquid Crystal Television for Spatial Frequency Analysis of Incoherent Scenes" (1987). Retrospective Theses and Dissertations. 5059.
https://stars.library.ucf.edu/rtd/5059
Contributor (Linked data)
University of Central Florida. College of Engineering [VIAF]
Accessibility Status
Searchable text
Included in
Accessibility Statement
This item was created or digitized prior to April 24, 2026, or is a reproduction of legacy media created before that date. It is preserved in its original, unmodified state specifically for research, reference, or historical recordkeeping. In accordance with the ADA Title II Final Rule, the University Libraries provides accessible versions of archival materials upon request. To request an accommodation for this item, please submit an accessibility request form.