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The Spatial Low-Pass Filtering as an Alternative to Interpolation Methods in the Generation of Combine Harvester Yield Maps

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Applied Engineering in Agriculture. 27(6): 1087-1097. (doi: 10.13031/2013.40612) @2011
Authors:   J. Gómez-Gil, L. J. López-López, L. M. Navas-Gracia, G. Ruiz-Ruiz
Keywords:   Key words Precision agriculture, Yield mapping, Filtering, Interpolation, Mass flow sensor

Interpolation techniques are usually employed in the yield maps generation. In this article, a method based in spatial low-pass filtering is presented and compared with interpolation techniques. The method consists in the application of low-pass filters typically used for image processing. The yield map is constructed in a similar way to a Digital Elevation Model (DEM), except for the fact that heights represent crop quantities.

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