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Stream pattern analysis using optical processing of ERTS imagery of KansasA spatial frequency analysis was carried out to obtain large-scale geologic and other ground pattern spatial frequency and orientational data from an optical data processing system using Earth Resources Technology Satellite-1 (ERTS-1) imagery of Kansas as input. The Diffraction Pattern Sampling Unit (DPSU) of the optical data processing system consists of a photodiode array containing 32 wedge-shaped photodiodes and 32 annular ring diodes. The curve obtained from the intensity distribution of the frequency spectrum yielded by the ring diodes gives the spatial frequency contributions due to ground features on the image. The curve obtained from the wedge-shaped diodes indicates the orientation of features in the sample area. Ten sample sites were used for each of eight geologic-physiographic regions. Comparison of ERTS-1 images with their respective spatial frequency and orientational curves reveals that preferred orientations of drainage produce recognizable peaks.
Document ID
19760041290
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mccauley, J.
(Kansas Univ. Center for Research, Inc. Lawrence, KS, United States)
Egbert, D.
(Kansas Univ. Center for Research, Inc. Lawrence, KS, United States)
Mcnaughton, J.
(Kansas Univ. Center for Research, Inc. Lawrence, KS, United States)
Ulaby, F. T.
(University of Kansas for Research Inc. Lawrence, Kan., United States)
Date Acquired
August 8, 2013
Publication Date
November 1, 1975
Publication Information
Publication: Modern Geology
Volume: 5
Subject Category
Earth Resources And Remote Sensing
Accession Number
76A24256
Funding Number(s)
CONTRACT_GRANT: NAS5-21822
Distribution Limits
Public
Copyright
Other

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