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Cartographic quality of ERTS-1 imagesAnalyses of simulated and operational ERTS images have provided initial estimates of resolution, ground resolution, detectability thresholds and other measures of image quality of interest to earth scientists and cartographers. Based on these values, including an approximate ground resolution of 250 meters for both RBV and MSS systems, the ERTS-1 images appear suited to the production and/or revision of planimetric and photo maps of 1:500,000 scale and smaller for which map accuracy standards are compatible with the imaged detail. Thematic mapping, although less constrained by map accuracy standards, will be influenced by measurement thresholds and errors which have yet to be accurately determined for ERTS images. This study also indicates the desirability of establishing a quantitative relationship between image quality values and map products which will permit both engineers and cartographers/earth scientists to contribute to the design requirements of future satellite imaging systems.
Document ID
19730019565
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Welch, R. I.
(Georgia Univ. Athens, GA, United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1973
Publication Information
Publication: NASA. Goddard Space Flight Center Symp. on Significant Results obtained from the ERTS-1, Vol. 1, Sect. A and B
Subject Category
Geophysics
Report/Patent Number
PAPER-L1
Accession Number
73N28297
Funding Number(s)
CONTRACT_GRANT: DI-14-08-0001-13167
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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