1 February 1991 Optical reflectance sensor for detecting plants
Author Affiliations +
Proceedings Volume 1379, Optics in Agriculture; (1991) https://doi.org/10.1117/12.25093
Event: Advances in Intelligent Robotics Systems, 1990, Boston, MA, United States
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.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Geoffrey J. Shropshire, Geoffrey J. Shropshire, Kenneth Von Bargen, Kenneth Von Bargen, David A. Mortensen, David A. Mortensen, } "Optical reflectance sensor for detecting plants", Proc. SPIE 1379, Optics in Agriculture, (1 February 1991); doi: 10.1117/12.25093; https://doi.org/10.1117/12.25093

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