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1 October 2006 A Mobile Field Robot with Vision-Based Detection of Volunteer Potato Plants in a Corn Crop
FRITS K. VAN EVERT, GERIE WAM VAN DER HEIJDEN, LAMBERTUS A.P. LOTZ, GERRIT POLDER, ARJAN LAMAKER, ARJAN DE JONG, MARJOLIJN C. KUYPER, ELTJE J.K. GROENDIJK, JACQUES J. NEETESON, TON VAN DER ZALM
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Abstract

Volunteer potato is a perennial weed that is difficult to control in crop rotations. It was our objective to build a small, low-cost robot capable of detecting volunteer potato plants in a cornfield and thus demonstrate the potential for automatic control of this weed. We used an electric toy truck as the basis for our robot. We developed a fast row-recognition algorithm based on the Hough transform and implemented it using a webcam. We developed an algorithm that detects the presence of a potato plant based on a combination of size, shape, and color of the green elements in an image and implemented it using a second webcam. The robot was able to detect potatoes while navigating autonomously through experimental and commercial cornfields. In a first experiment, 319 out of 324 images were correctly classified (98.5%) as showing, or not showing, a potato plant. In a second experiment, 126 out of 141 images were correctly classified (89.4%). Detection of a potato plant resulted in an acoustic signal, but future robots may be fitted with weed control equipment, or they may use a global positioning system to map the presence of weed plants so that regular equipment can be used for control.

Nomenclature: Corn, Zea mays L, Potato, Solanum tuberosum L.

Additional index words: Autonomous navigation, autonomous weeding, glyphosate, machine-vision, site-specific weed control.

Abbreviations: DIPlib, Delft image-processing library; DSP, digital signal processor; GPS, global positioning system; JPEG, Joint Photographic Experts Group; NiMh, nickle metal hydride; PC, personal computer.

FRITS K. VAN EVERT, GERIE WAM VAN DER HEIJDEN, LAMBERTUS A.P. LOTZ, GERRIT POLDER, ARJAN LAMAKER, ARJAN DE JONG, MARJOLIJN C. KUYPER, ELTJE J.K. GROENDIJK, JACQUES J. NEETESON, and TON VAN DER ZALM "A Mobile Field Robot with Vision-Based Detection of Volunteer Potato Plants in a Corn Crop," Weed Technology 20(4), 853-861, (1 October 2006). https://doi.org/10.1614/WT-05-132.1
Published: 1 October 2006
JOURNAL ARTICLE
9 PAGES


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