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Automated land-use mapping from spacecraft dataThe author has identified the following significant results. In response to the need for a faster, more economical means of producing land use maps, this study evaluated the suitability of using ERTS-1 computer compatible tape (CCT) data as a basis for automatic mapping. Significant findings are: (1) automatic classification accuracy greater than 90% is achieved on categories of deep and shallow water, tended grass, rangeland, extractive (bare earth), urban, forest land, and nonforested wet lands; (2) computer-generated printouts by target class provide a quantitative measure of land use; and (3) the generation of map overlays showing land use from ERTS-1 CCTs offers a significant breakthrough in the rate at which land use maps are generated. Rather than uncorrected classified imagery or computer line printer outputs, the processing results in geometrically-corrected computer-driven pen drawing of land categories, drawn on a transparent material at a scale specified by the operator. These map overlays are economically produced and provide an efficient means of rapidly updating maps showing land use.
Document ID
19740013852
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Chase, P. E. (Bendix Corp. Ann Arbor, MI, United States)
Rogers, R. H. (Bendix Corp. Ann Arbor, MI, United States)
Reed, L. E. (Bendix Corp. Ann Arbor, MI, United States)
Date Acquired
September 3, 2013
Publication Date
March 1, 1974
Subject Category
Geophysics
Report/Patent Number
NASA-CR-137423
E74-10440
Accession Number
74N21965
Funding Number(s)
CONTRACT_GRANT: NAS5-21810
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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