摘要
利用监督分类和阚值判别相结合的方法 ,在对不同地物的地表光谱特征进行分析的基础上 ,对NOAA和FY - 1C卫星各个季相的晴空资料分别进行了计算NDVI与判别分类 ,制作了陕西省遥感土地覆盖分类图。从而探索了一种通过极轨遥感资料进行宏观的土地覆盖分类的方法。此外 ,提出的用于遥感图像精校正的火点定位法 。
Research on classification of NOAA and FY-1 satellite images, calculatien of NDVI was carried out and the vegetable coverage thematic map for Shaanxi province,was drafted by using the method of supervised classification combined threshold judgment, and based on analyzing spectral features of different surface objects. Then,a method used for vegetable coverage classification was found. And furthermore,the fire-spot-locating method was used to improve the precision of the RS image geometric correction, and so the problems about correspondence between GCP(ground control point) and image point can be solved.
出处
《中国农业气象》
CSCD
2002年第2期32-35,48,共5页
Chinese Journal of Agrometeorology
关键词
陕西
土地覆盖
分类
遥感资料
Remote sensing
Vegetable coverage
Classification
