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Title: Investigation of discrete function technology for topographic sciences
Authors: Rohde, Frederick W.
Keywords: Military topography
Electro-optical technology
Remote sensing
Publisher: U.S. Army Engineer Topographic Laboratories.
Engineer Research and Development Center (U.S.)
Series/Report no.: ETL ; 0162.
Description: Research note
Abstract: Applications of discrete function technology in the topographic sciences with emphasis upon the extraction of cartographic features from images is discussed. Specifically, research was done on the use of various orthogonal sets of functions for decomposing topographic images in spectral components and whether such decompositions are useful for the extraction of cartographic and terrain features. Also, Fourier, Block, Walsh, and Haar transforms of images for machine feature extraction were compared, and the potential of devices that may facilitate direct discrete transforms using electro-optical technology was studied. The report concludes that discrete function technology can be applied to at least three areas of the topographic sciences, namely to image analysis for cartographic and terrain feature extraction, to geopotential representation, and to remote sensing.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Research Note

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