Classification of rice plant nitrogen nutrient status using k-nearest neighbors (k-NN) with light intensity data

Crop management including the efficient use of nitrogen (N) fertilizer is important to ensure crop productivity. Human error in judging the leaf greenness when using the leaf color chart (LCC) to estimate the rice plant N nutrient status has encouraged numerous researchers to implement a machine-lea...

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Main Authors: Muliady, Muliady (Author), Tien Sze, Lim (Author), Voon Chet, Koo (Author), Patra, Suhadra (Author)
Format: EJournal Article
Published: Institute of Advanced Engineering and Science, 2021-04-01.
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LEADER 02462 am a22003253u 4500
001 ijeecs23899_14805
042 |a dc 
100 1 0 |a Muliady, Muliady  |e author 
100 1 0 |e contributor 
700 1 0 |a Tien Sze, Lim  |e author 
700 1 0 |a Voon Chet, Koo  |e author 
700 1 0 |a Patra, Suhadra  |e author 
245 0 0 |a Classification of rice plant nitrogen nutrient status using k-nearest neighbors (k-NN) with light intensity data 
260 |b Institute of Advanced Engineering and Science,   |c 2021-04-01. 
500 |a https://ijeecs.iaescore.com/index.php/IJEECS/article/view/23899 
520 |a Crop management including the efficient use of nitrogen (N) fertilizer is important to ensure crop productivity. Human error in judging the leaf greenness when using the leaf color chart (LCC) to estimate the rice plant N nutrient status has encouraged numerous researchers to implement a machine-learning algorithm but experienced some issues in calibration and lighting. The datasets are created at 6.00-7.00AM (consistent lighting) and including light intensity, so each dataset contains RGB value and light intensity as inputs, and LCC value as a target. A system consists of a smartphone with an application that prevents user from taking an image if the light intensity is not in 2000-3500 lux, and a computer for preprocessing and classification purposes were developed. The preprocessing included cropping, splitting the rice leaf images, and calculating the average RGB values. A k-NN classifier is implemented and by using a cross-validation method is found k=5 gives the best accuracy of 97,22%. The in-site test of the system also works with an accuracy of 96.40%.  
540 |a Copyright (c) 2021 Institute of Advanced Engineering and Science 
540 |a http://creativecommons.org/licenses/by-nc/4.0 
546 |a eng 
690
690 |a Consistency lighting; k-NN; Leaf color chart; Light intensity; Nitrogen nutrient; Rice plants 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |2 local 
786 0 |n Indonesian Journal of Electrical Engineering and Computer Science; Vol 22, No 1: April 2021; 179-186 
786 0 |n 2502-4760 
786 0 |n 2502-4752 
786 0 |n 10.11591/ijeecs.v22.i1 
787 0 |n https://ijeecs.iaescore.com/index.php/IJEECS/article/view/23899/14805 
856 4 1 |u https://ijeecs.iaescore.com/index.php/IJEECS/article/view/23899/14805  |z Get fulltext