A real-time robotic weed control system was developed and tested in commercial cotton fields. The precision weed control system was capable of distinguishing grass-like weeds from cotton plants and applying a chemical spray only to targeted weeds while traveling at a continuous speed of 0.45 m/s. The robot consisted of a real-time machine vision system, a controlled illumination chamber; and a precision chemical applicator. In commercial cotton fields, the system correctly sprayed 88.8 of the weeds while correctly identifying and not spraying 78.7 of the cotton plants while traveling at 0.45 m/s.
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