摘要
对资源三号卫星多角度图像的正视和斜视卫星影像进行预处理,从经过预处理的正视和斜视影像上分别选取3种不同类型的植被,然后分别提取其NDVI值与灰度值,比较在正视和斜视影像上同一类型的植被的NDVI值与灰度值的变化,发现同一地块在正视和斜视影像上的NDVI值和灰度值有所不同,不同地块在正视和斜视影像上的NDVI值和灰度值也存在差异,最终根据他们的不同,达到区分植被类型的目的,为以后的遥感植被解译工作提供参考与支持。
In this paper, three different types of vegetation are selected from pre-processed emmetropia and strabismus satellite images of Resource-3 satellite multi-angle images, and their NDVI values and grayscale values are extracted respectively. By comparing the changes of NDVI value and gray value of the same vegetation in the emmetropia and strabismus images, it is found that the NDVI value and gray value of the same plot are different in the emmetropia and strabismus images. There are also differences in NDVI and gray values of different plots in the emmetropia and squint images. Finally, according to their differences, the purpose of distinguishing vegetation types is achieved, which provides reference and support for the interpretation of remote sensing vegetation in the future.
引文
[1]赵祖军.多角度遥感提取地物几何信息的几个关键技术研究[D].中国科学院研究生院(遥感应用研究所),2006.
[2]李芬.资源三号卫星数据在土地利用遥感监测中的应用研究[D].吉林大学,2013.
[3]郭凯,孙培新,刘卫国,等.利用遥感影像软件ENVI提取植被指数[J].红外,2005,5(2):13-15.