| 双通道近地遥感图像采集处理系 |
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| 引用本文： | 赵瑞娇,李民赞.双通道近地遥感图像采集处理系[J].农业机械学报,2009,40(Z1):210-213. |
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| 作者姓名： | 赵瑞娇 李民赞 |
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| 作者单位： | 中国农业大学现代精细农业系统集成研究教育部重点试验室,北京,100083 |
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| 基金项目： | 国家"863"高技术研究发展计划资助项目 |
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| 摘 要： | 利用2CCD多光谱相机设计了近地遥感图像采集平台,同步获取小范围区域作物的可见光和NIR图像,通过图像处理技术从作物图像获得反射光谱信息.采集平台包括一个2CCD多光谱相机,两个采集盒,一台具有两个千兆网口的田间计算机.图像处理部分通过2GRB灰度化、中值滤波和Otsu二值化,从背景中分割出作物图像,结合作物原始R分量灰度图像,提取出作物红光图像平均灰度值,利用建立的灰度值与反射率的线性模型,计算得到作物红光波段的反射率.试验结果表明,图像采集平台工作稳定,利用图像处理方法提取的反射率与ASD光谱仪测量结果有较好相关性,为从作物冠层图像探测生长状况提供了理论依据.
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| 关 键 词： | 近地遥感 多光谱相机 图像分割 反射率提取 |
of a Two-channel Platform for Acquiring and Processing Near-ground Remote Sensing Images |
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| Zhao Ruijiao Li Minzan.of a Two-channel Platform for Acquiring and Processing Near-ground Remote Sensing Images[J].Transactions of the Chinese Society of Agricultural Machinery,2009,40(Z1):210-213. |
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| Authors: | Zhao Ruijiao Li Minzan |
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| Affiliation: | Key Laboratory of Modern Precision Agriculture System Integration Research;Ministry of Education;China Agricultural University;Beijing 100083;China |
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| Abstract: | An acquiring platform of near-ground remote sensing images is developed to collect visible image and NIR image synchronously and then get the reflectance information from crop images.The platform contains: a 2-CCD multi-spectral camera,two collecting boxes,a field computer with two gigabit net interfaces and an image processing system.First,a true color image of plants is processed with 2G-R-B gray and median filtering algorithm,and the Otsu algorithm is used to separate plants from ground.Then the binary i... |
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| Keywords: | Near-ground remote sensing Multi-spectral camera Image segment Reflectance extraction |
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