【摘要】 以云南省曲靖市为研究对象,利用典型时相的AVHRR多波段光谱资料的主成分分析结果图象,辅以GPS定位信息和DEM(数字高程模型)栅格数据,进行假彩色合成和非监督分类,从而得到曲靖市的春季作物假彩色分布图和可参与后续运算的定量分布数据,对解决云南高原山区的春季作物遥感信息提取很有效。更多还原

【Abstract】 Taken Qujing city of Yunnan Province as an example, the several tools were used to obtain the false color distributing images of spring crops and quantitative location data for the further calculations. The images were treated by using the results of principal component analysis from data of the multi-spectral AVHRR, combined with GPS and DEM (digital elevation model) information. The false color composition and non-supervised classification were conducted. The method could be effectively used in extracting remote sensing information of spring crops in the mountain areas in Yunnan altiplano.更多还原