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Visual features based boosted classification of weeds for real-time selective herbicide sprayer systems

Jamil, Ahmad; Khan, Muhammad; Imran, Ahmad; Wakeel, Ahmad; Smith, Melvyn; Smith, Lyndon; Deepak, Jain; Haoxiang, Wang; Irfan, Mehmood

Authors

Ahmad Jamil

Muhammad Khan

Ahmad Imran

Ahmad Wakeel

Melvyn Smith Melvyn.Smith@uwe.ac.uk
Research Centre Director Vision Lab/Prof

Lyndon Smith Lyndon.Smith@uwe.ac.uk
Professor in Computer Simulation and Machine

Jain Deepak

Wang Haoxiang

Mehmood Irfan



Abstract

© 2018 Recent years have shown enthusiastic research interest in weed classification for selective herbicide sprayer systems which are helpful in eradicating unwanted plants such as weeds from fields, minimizing the side effects of chemicals on the environment and crops. Two commonly found weeds are monocots (thin leaf) and dicots (broad leaf), requiring separate chemical herbicides for eradication. Researchers have used various computer vision-assisted techniques for eradication of these weeds. However, the changing and un-predictive lighting conditions in fields make the process of weed detection and identification very challenging. Therefore, in this paper, we present an efficient weed classification framework for real-time selective herbicide sprayer systems, exploiting boosted visual features of images, containing weeds. The proposed method effectively represents the image using local shape and texture features which are extracted during the leaf growth stage using an efficient method, preserving the discrimination between various weed species. Such effective representation allows accurate recognition at early growth stages. Furthermore, the various illumination problems prior to feature extraction are minimized using an adaptive segmentation algorithm. AdaBoost with Naïve Bayes as a base classifier discriminates the two weed species. The proposed method achieves an overall accuracy 98.40%, with true positive rate of 0.983 and false positive rate of 0.0121 for the original dataset and achieved 94.72% accuracy with the expanded dataset. The execution time of the proposed method is about 35 millisecond per image, which is less than state-of-the-art methods.

Journal Article Type Article
Publication Date Jun 1, 2018
Journal Computers in Industry
Print ISSN 0166-3615
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 98
Pages 23-33
APA6 Citation Jamil, A., Khan, M., Imran, A., Wakeel, A., Smith, M., Smith, L., …Irfan, M. (2018). Visual features based boosted classification of weeds for real-time selective herbicide sprayer systems. Computers in Industry, 98, 23-33. https://doi.org/10.1016/j.compind.2018.02.005
DOI https://doi.org/10.1016/j.compind.2018.02.005
Keywords weed classification, machine learning, computer vision, image segmentation, selective herbicide sprayer systems, boosted classifier for weed detection
Publisher URL https://doi.org/10.1016/j.compind.2018.02.005

This file is under embargo due to copyright reasons.

Contact melvyn.smith@uwe.ac.uk to request a copy for personal use.






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