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Position: Home > Articles > Vegetation Extraction in Urban Aerial Image on the Basis of Visible Light Wave Journal of Green Science and Technology 2016 (16) 247-250

基于可见光波段的城市航空影像植被提取

作  者:
周勇兵;朱永清
单  位:
武汉大学遥感信息工程学院;长江水利委员会长江流域水土保持监测中心站
关键词:
航空影像;植被指数;可见光;植被提取
摘  要:
指出了通过遥感技术提取植被信息已经是植被提取的主要方式,而植被指数是遥感技术植被提取的重要手段。植被在近红外波段有一个反射峰值,根据这一特性,植被指数一般都包含近红外波段。由于航空摄影一般都只搭载仅包含可见光波段的数码相机,所以需要设计出仅依赖可见光波段的波段指数来提取植被信息。试验比较了几种主要的可见光波段指数方法,通过比较其效果发现,航空影像植被指数跟绿波段和蓝波段的差异较为相关,而跟红波段相关性小。进而提出了一种加强绿波段和蓝波段差异的植被指数,试验结果证明:提取的植被效果很好,可以作为航空影像植被提取的一个有效方法。
译  名:
Vegetation Extraction in Urban Aerial Image on the Basis of Visible Light Wave
作  者:
Zhou Yongbing;Zhu Yongqing;Institute of remote sensing information engineering,Wuhan University;
关键词:
aerial image;;vegetation index;;visible light;;vegetation extraction
摘  要:
This paper pointed out that extracting vegetation information through remote sensing was a main way of vegetation information extraction,and vegetation index was an important means of extracting vegetation information through remote sensing.Vegetation had a reflection peak in near-infrared wave band,according to the characteristics,vegetation index generally contained near-infrared wave band.As aerial photography only carried visible light wave band digital camera,we needed to design a vegetation index relying on visible light band to extract vegetation information.In this paper,we conducted a experiment comparing several main visible light wave band vegetation index,through which we found that vegetation index is related with the difference between green band and blue band,and rarely related with the red band.So we presented a vegetation index enhancing the difference between green band and blue band,which was proved a effective way from experiment.

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