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A novel semi-supervised framework for UAV based crop/weed classification

Excessive use of agrochemicals for weed controlling infestation has serious agronomic and environmental repercussions associated. An appropriate amount of pesticide/ chemicals is essential for achieving the desired smart farming and precision agriculture (PA). In this regard, targeted weed control w...

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Autores principales: Khan, Shahbaz, Tufail, Muhammad, Khan, Muhammad Tahir, Khan, Zubair Ahmad, Iqbal, Javaid, Alam, Mansoor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8109769/
https://www.ncbi.nlm.nih.gov/pubmed/33970938
http://dx.doi.org/10.1371/journal.pone.0251008
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author Khan, Shahbaz
Tufail, Muhammad
Khan, Muhammad Tahir
Khan, Zubair Ahmad
Iqbal, Javaid
Alam, Mansoor
author_facet Khan, Shahbaz
Tufail, Muhammad
Khan, Muhammad Tahir
Khan, Zubair Ahmad
Iqbal, Javaid
Alam, Mansoor
author_sort Khan, Shahbaz
collection PubMed
description Excessive use of agrochemicals for weed controlling infestation has serious agronomic and environmental repercussions associated. An appropriate amount of pesticide/ chemicals is essential for achieving the desired smart farming and precision agriculture (PA). In this regard, targeted weed control will be a critical component significantly helping in achieving the goal. A prerequisite for such control is a robust classification system that could accurately identify weed crops in a field. In this regard, Unmanned Aerial Vehicles (UAVs) can acquire high-resolution images providing detailed information for the distribution of weeds and offers a cost-efficient solution. Most of the established classification systems deploying UAV imagery are supervised, relying on image labels. However, this is a time-consuming and tedious task. In this study, the development of an optimized semi-supervised learning approach is proposed, offering a semi-supervised generative adversarial network for crops and weeds classification at early growth stage. The proposed algorithm consists of a generator that provides extra training data for the discriminator, which distinguishes weeds and crops using a small number of image labels. The proposed system was evaluated extensively on the Red Green Blue (RGB) images obtained by a quadcopter in two different croplands (pea and strawberry). The method achieved an average accuracy of 90% when 80% of training data was unlabeled. The proposed system was compared with several standards supervised learning classifiers and the results demonstrated that this technique could be applied for challenging tasks of crops and weeds classification, mainly when the labeled samples are small at less training time.
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spelling pubmed-81097692021-05-21 A novel semi-supervised framework for UAV based crop/weed classification Khan, Shahbaz Tufail, Muhammad Khan, Muhammad Tahir Khan, Zubair Ahmad Iqbal, Javaid Alam, Mansoor PLoS One Research Article Excessive use of agrochemicals for weed controlling infestation has serious agronomic and environmental repercussions associated. An appropriate amount of pesticide/ chemicals is essential for achieving the desired smart farming and precision agriculture (PA). In this regard, targeted weed control will be a critical component significantly helping in achieving the goal. A prerequisite for such control is a robust classification system that could accurately identify weed crops in a field. In this regard, Unmanned Aerial Vehicles (UAVs) can acquire high-resolution images providing detailed information for the distribution of weeds and offers a cost-efficient solution. Most of the established classification systems deploying UAV imagery are supervised, relying on image labels. However, this is a time-consuming and tedious task. In this study, the development of an optimized semi-supervised learning approach is proposed, offering a semi-supervised generative adversarial network for crops and weeds classification at early growth stage. The proposed algorithm consists of a generator that provides extra training data for the discriminator, which distinguishes weeds and crops using a small number of image labels. The proposed system was evaluated extensively on the Red Green Blue (RGB) images obtained by a quadcopter in two different croplands (pea and strawberry). The method achieved an average accuracy of 90% when 80% of training data was unlabeled. The proposed system was compared with several standards supervised learning classifiers and the results demonstrated that this technique could be applied for challenging tasks of crops and weeds classification, mainly when the labeled samples are small at less training time. Public Library of Science 2021-05-10 /pmc/articles/PMC8109769/ /pubmed/33970938 http://dx.doi.org/10.1371/journal.pone.0251008 Text en © 2021 Khan et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Khan, Shahbaz
Tufail, Muhammad
Khan, Muhammad Tahir
Khan, Zubair Ahmad
Iqbal, Javaid
Alam, Mansoor
A novel semi-supervised framework for UAV based crop/weed classification
title A novel semi-supervised framework for UAV based crop/weed classification
title_full A novel semi-supervised framework for UAV based crop/weed classification
title_fullStr A novel semi-supervised framework for UAV based crop/weed classification
title_full_unstemmed A novel semi-supervised framework for UAV based crop/weed classification
title_short A novel semi-supervised framework for UAV based crop/weed classification
title_sort novel semi-supervised framework for uav based crop/weed classification
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8109769/
https://www.ncbi.nlm.nih.gov/pubmed/33970938
http://dx.doi.org/10.1371/journal.pone.0251008
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