摘要
利用遥感图像进行岩性分类是遥感地质的重要应用之一.对地统计学中的变差函数进行了改进,并在IDL中进行编程实现,结合"OTSU"阈值自动提取算法,进行遥感图像的岩性提取,并以实验进行了验证和分析.实验证明:该方法准确率较高,速度较快,能够有效的应用于工程地质等领域的岩性分类工作.
Lithologic mapping from image classification is one of the most important applications in geologic remote sensing.The variogram in the geostatistics is improved and programmed in IDL.Combined with ＂OTSU＂ thresholding method,the lithologic classification from Landsat TM image is made.Experiment results show that this method turns out to be effective and can be applied to lithologic classification in engineering geology and related fields.
出处
《兰州交通大学学报》
CAS
2012年第1期9-13,共5页
Journal of Lanzhou Jiaotong University
关键词
岩性分类
变差函数
图像纹理
遥感地质
lithologic classification
image texture
variogram
geologic remote sensing
