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ABSTRACT Amachine vision system coupled with image processing algorithms has successfully recorded and identified images of the juvenile stages of corn, soybeans, tomatoes, Johnsongrass, Jimsonweed, velvetleaf, giant foxtail, and lambsquarters. Plants were grown in containers and images were obtained in a laboratory setting with the camera and light source positioned directly above the plants. Spatial parameters of the plants within the digital images were computed and used in a classification scheme for identification..
Guyer et al. (1986) studied this question.