【摘要】 国土资源大调查是国家一项基础性、公益性、战略性的综合调查评价工程。针对目前国土资源大调查中本底数据库建设上信息提取主要采取人工勾绘的问题,提出了采用面向对象的分类方法,自动提取土地利用类型,用于本底数据库建设的思路,并结合调查的目标城市——贵阳市白云区进行操作实现,结果表明采用面向对象的分类方法进行土地利用信息自动提取,基本上能够满足类型精度,可有效节省时间、减少工作量,体现了高分辨率影像反应准确、迅速的优势。更多还原

【Abstract】 Land Resource Survey is a national integrated investigation and evaluation engineering,And it is a basic,public welfare and strategy work.Now,the method for information extraction in the construction of background Database Construction is mainly man-made drawing.For this question,the method of object-oriented classification to automaticlly extract information for the construction of background database is given,at the same time,Guiyang city as example for realizing is used.It was shown in the result that this method can satisfy the demand of precision for construction of background database.更多还原