Weed Density and Distribution Estimation for Precision Agriculture using Semi-Supervised Learning
| Autor: | Shorewala, Shantam, Ashfaque, Armaan, R, Sidharth, Verma, Ujjwal |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | IEEE Access, vol 9, 2021 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1109/ACCESS.2021.3057912 |
| Popis: | Uncontrolled growth of weeds can severely affect the crop yield and quality. Unrestricted use of herbicide for weed removal alters biodiversity and cause environmental pollution. Instead, identifying weed-infested regions can aid selective chemical treatment of these regions. Advances in analyzing farm images have resulted in solutions to identify weed plants. However, a majority of these approaches are based on supervised learning methods which requires huge amount of manually annotated images. As a result, these supervised approaches are economically infeasible for the individual farmer because of the wide variety of plant species being cultivated. In this paper, we propose a deep learning-based semi-supervised approach for robust estimation of weed density and distribution across farmlands using only limited color images acquired from autonomous robots. This weed density and distribution can be useful in a site-specific weed management system for selective treatment of infected areas using autonomous robots. In this work, the foreground vegetation pixels containing crops and weeds are first identified using a Convolutional Neural Network (CNN) based unsupervised segmentation. Subsequently, the weed infected regions are identified using a fine-tuned CNN, eliminating the need for designing hand-crafted features. The approach is validated on two datasets of different crop/weed species (1) Crop Weed Field Image Dataset (CWFID), which consists of carrot plant images and the (2) Sugar Beets dataset. The proposed method is able to localize weed-infested regions a maximum recall of 0.99 and estimate weed density with a maximum accuracy of 82.13%. Hence, the proposed approach is shown to generalize to different plant species without the need for extensive labeled data. Comment: Included few details about the dataset. This paper has been accepted in IEEE Access. Citation: S. Shorewala, A. Ashfaque, S. R and U. Verma, "Weed Density and Distribution Estimation for Precision Agriculture using Semi-Supervised Learning," in IEEE Access, doi: 10.1109/ACCESS.2021.3057912 |
| Databáze: | arXiv |
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