Abstract
The traditional ways of weed management including spraying of herbicides on the whole field and manually uprooting them, are still in practice in many agricultural farms. This leads to herbicide overuse that causes serious health issues due to food quality degradation and environmental pollution. Computer aided weed detection systems can help in smart utilization of herbicides by detecting weeds through images. The aim of this study is to propose a novel weed detection system that provides accurate results in recognizing crops and weed using Machine Learning and Image Processing techniques. The image dataset chosen for this work is comprised of four different classes including broadleaf weed, grass, soil, and soybean. The proposed algorithm extracts texture and color features from each image in dataset and uses Random Forest algorithm to train a model using extracted feature descriptors. The working of the model is evaluated by computing regression metrics, precision, recall and F1 scores. Results showed that the model achieved a correct classification accuracy of 91% for weed, 100% for soil, 90% for grass and 99% for the soybean crop. The complete program took only 80 sec to execute which is ideal for a real-time environment.
Rameen Sohail, Qamar Nawaz, Isma Hamid, Humair Amin. (2021) A NOVEL MACHINE LEARNING BASED ALGORITHM TO DETECT WEEDS IN SOYBEAN CROP, Pakistan Journal of Agricultural Sciences, Volume 58, Issue 3.
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