Artificial Neural Network to Predict Leaf Population Chlorophyll Content from Cotton Plant Images
文献类型: 外文期刊
第一作者: Li Shao-kun
作者: Li Shao-kun;Wang Ke-ru;Wang Chong-tao;Suo Xing-mei;Jiang Ying-tao;Yang Mei
作者机构:
关键词: artificial neural network;image processing;cotton plant;leaf population chlorophyll content;prediction
期刊名称:AGRICULTURAL SCIENCES IN CHINA ( 影响因子:0.82; 五年影响因子:0.997 )
ISSN: 1671-2927
年卷期: 2010 年 9 卷 1 期
页码:
收录情况: SCI
摘要: Leaf population chlorophyll content in a population of crops, if obtained in a timely manner, served as a key indicator for growth management and diseases diagnosis. In this paper, a three-layer multilayer perceptron (MLP) artificial neural network (ANN) based prediction system was presented for predicting the leaf population chlorophyll content from the cotton plant images. As the training of this prediction system relied heavily on how well those leaf green pixels were separated from background noises in cotton plant images, a global thresholding algorithm. and an omnidirectional scan noise filtering coupled with the hue histogram statistic method were designed for leaf green pixel extraction. With the obtained leaf green pixels, the system training was carried out by applying a back propagation algorithm. The proposed system was tested to predict the chlorophyll content from the cotton plant images. The results using the proposed system were in sound agreement with those obtained by the destructive method. The average prediction relative error for the chlorophyll density (mu g cm(-2)) in the 17 testing images was 8.41%.
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