摘要
利用高光谱遥感的方法,采用美国ASD公司生产的FieldSpec 4(背负式非成像高光谱仪),光谱范围覆盖350—2 500 nm,开展了对水泥混凝土道路、沥青道路、砖路和泥路这4种最为常见的典型道路的高光谱数据野外观测。利用光谱均值、反射率计算、一阶导数、二阶导数、倒数后对数变换等方法,对原始光谱数据进行处理,分析对比4种道路的光谱曲线,研究4种道路各自的光谱特征并找到能很好地区分这4种不同道路类型的最佳波段。旨在探索不同道路类型的光谱特征,为道路识别与提取提供重要依据。
This paper, by using the FieldSpec 4 made by United States ASD company,wavelength range 350-2 500 nm,the field observations of hyperspectral data of the four common typical pavement materials such as concrete,asphalt,brick and soil were carried out,and then using the methods of spectral mean value,reflectivity,first order derivative and second order derivative and first calculate reciprocal then logarithmic transformation,the original spectral data were transformed,thus obtaining four kinds of materials' spectral characteristics curves.Finally,analyzing and comparing the results to find excellent range of bands for distinguishing the four different road types.Aims to explore the spectral characteristics of different road types,and provide important basis on distinguishing and extracting road rapidly.
作者
陆频频
戴激光
施先忠
LU Pinpin;DAI Jiguang;SHI Xianzhong(School of Geomatics, Liaoning Technical University, Fuxin 123000, China;North China Institute of Aerospace Engineering, Aerospace Remote SensingInformation Processing and Application Collaborative InnovationCenter of Hebei Province, Langfang 065000, China)
出处
《测绘与空间地理信息》
2019年第5期141-144,共4页
Geomatics & Spatial Information Technology
关键词
道路光谱特征
反射光谱曲线
高光谱
road spectral characteristics
reflectance spectral curve
hyperspectral technique
