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Proceedings Paper

Optical reflectance sensor for detecting plants
Author(s): Geoffrey J. Shropshire; Kenneth Von Bargen; David A. Mortensen
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Paper Abstract

The reflectance ratio meter, an optical device for detecting weeds by measuring the ratio of reflected red and near-infrared light, is described. Experiments were conducted to evaluate the accuracy of the sensor in detecting weeds in the inter-row of growing soybeans and to characterize its sensitivity. Several methods for interpreting the signal were evaluated. The reflectance ratio meter is shown to have potential for estimating local weed populations.

Paper Details

Date Published: 1 February 1991
PDF: 14 pages
Proc. SPIE 1379, Optics in Agriculture, (1 February 1991); doi: 10.1117/12.25093
Show Author Affiliations
Geoffrey J. Shropshire, Univ. of Nebraska/Lincoln (United States)
Kenneth Von Bargen, Univ. of Nebraska/Lincoln (United States)
David A. Mortensen, Univ. of Nebraska/Lincoln (United States)

Published in SPIE Proceedings Vol. 1379:
Optics in Agriculture
James A. DeShazer; George E. Meyer, Editor(s)

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