摘要
笔者利用ETM +、TM及部分SPOT影像 ,通过对上海奉贤区进行LUCC(2 0 0 0年 - 1998年 )变化信息提取 ,针对研究区 ,提取并发展了两到三种实用且效果明显的处理方法 :如差值阈值法用于变化图斑发现 ,多时相假彩色合成影像用于分层提取变化类型的方法等 ,在ERDAS实现了人工干预下的计算机智能提取 ,经野外检查 ,试验结果理想。
Using ETM+,TM, and part of SPOT , the author finds and extracts LUCC(1998a-2000a) change information, determining and indicating the nature of change image in Fengxian district of Shanghai, and provides and develops effe ctively several processing methods, such as, we use the methods of image subtraction and changing threshold selection to find image speckles of change, and multi-dates false color composite to extract LUCC change types and so on, we firstly realize the techniques of computer auto-extraction through assistant by ERDAS. After that, by field checked,the result is satisfactory.
出处
《山东农业大学学报（自然科学版）》
CSCD
北大核心
2003年第3期406-409,共4页
Journal of Shandong Agricultural University：Natural Science Edition
