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dc.contributor.authorLeighty, Robert Dwaine, 1930--
dc.descriptionResearch note-
dc.descriptionAbstract: A preliminary investigation of the application of Optical Power Spectral Analysis (OPSA) approaches to machine-readable factor maps for terrain information systems is presented. The objective is to offer a more compact, simpler, and cheaper data base storage and retrieval system that would be available by all digital technology. In the basic concept of the systems, OPSA is used to decode data from reduced factor maps that have been encoded by spatial frequency and direction of optical gratings.-
dc.publisherU.S. Army Engineer Topographic Laboratories.-
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relation.ispartofseriesETL ; 0212.-
dc.rightsApproved for public release; distribution is unlimited.-
dc.sourceThis Digital Resource was created from scans of the Print Resource.-
dc.subjectComputer simulation-
dc.subjectDiffraction pattern sampling-
dc.subjectGraphics data base-
dc.subjectMap storage and retrieval-
dc.subjectTerrain Information Systems-
dc.titleOptical power spectral analysis for machine-readable factor maps-
Appears in Collections:Research Note

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