张 新,赵燕东,郑力嘉,Martin Kraft.基于三维机器视觉的植物叶片萎蔫预测模型[J].农业机械学报,2014,45(9):260-267.
Zhang Xin,Zhao Yandong,Zheng Lijia,Martin Kraft.Prediction Model of Plant Leaf Wilting Using 3-D Machine Vision[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(9):260-267.
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基于三维机器视觉的植物叶片萎蔫预测模型   [下载全文]
Prediction Model of Plant Leaf Wilting Using 3-D Machine Vision   [Download Pdf][in English]
投稿时间:2013-07-03  
DOI:10.6041/j.issn.1000-1298.2014.09.042
中文关键词:  植物叶片 萎蔫指数 三维图像 机器视觉
基金项目:国家自然科学基金资助项目(31371537)、农业科技成果转化资金资助项目(2012GB23600634)和国际科技合作专项资助项目(2010DFA34670)
作者单位
张 新 北京林业大学 
赵燕东 北京林业大学 
郑力嘉 中国农业大学 
Martin Kraft 德国联邦农业、林业和渔业研究所农业技术分所 
中文摘要:采用基于激光斜射测距原理的三维扫描装置实时获取植株三维图像,从中提取叶面卷曲统计指数、分形维数和二维傅里叶变换直流分量作为萎蔫指数来定量研究植物的萎蔫程度,采用西葫芦、葫芦、南瓜及秋葵4种植物的嫩叶期体态变化检验了3种萎蔫指数与萎蔫程度的相关性,结果表明:3种萎蔫指数与萎蔫程度均具有较好的相关性,相关系数都达到了0.82以上。在此基础上,运用SPSS软件建立了3种萎蔫指数与环境饱和水气压差VPD及光合有效辐射的多元线性回归统计模型。
Zhang Xin  Zhao Y  ong  Zheng Lijia  Martin Kraft
Beijing Forestry University;Beijing Forestry University;China Agricultural University;Thuenen Institute of Agricultural Technology, German Federal Research Institute for Rural Areas, Forestry and Fisheries
Key Words:Plant leaf Wilting index 3-D image Machine vision
Abstract:Wilting of plants appears when the water supply of plants is insufficient. Quantitative identification of wilting phenomena of plant stems, leaves and other parts is of important practical significance to improve agricultural production and efficient water irrigation. A scanning device based on the principle of laser ranging oblique is used to obtain real time 3-D plant images. Then leaf curl statistical index, fractal dimension and the DC component of two-dimensional Fourier spectrum were extracted as wilting index to quantify the degree of wilting plants. Three kinds of wilting indexes were tested on zucchini, gourds, pumpkins and okra leaves to find out the correlations with wilting extent. The experiments show that each wilting index had a good correlation with wilting extent (0.82 or more are reached). On this basis, a multiple linear regression model of three kinds of wilting indexes, vapor pressure deficit (VPD) and photosynthetically active radiation (PAR) was built.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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