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Recognition of crops and soils by spot density measurements of imageryComputerized techniques and methods were used to conduct preliminary soil and crop identification experiments. The soil identification experiment was conducted by making densitometer measurements on Ektachrome infrared film exposed at 14,000 feet. The density measurements were analyzed by plotting sample probability density functions, two-dimensional scatter plots, and the use of K-class I to determine the complete set of classification results for one, two, three and four features. Due to the presence of nineteen classes, crop identification experiments were more difficult to formulate. Classes of corn, fallow, harvested wheat, roadways, trees and water were classified 75 percent correct.
Document ID
19720004626
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Nelson, G. D. (South Dakota State Univ. Brookings, SD, United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1970
Publication Information
Publication: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., Vol. 2
Subject Category
Geophysics
Accession Number
72N12275
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19720004620Collected WorksThird Annual Earth Resources Program Review. Volume 2: Agriculture, forestry, and sensor studies
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