几何校正和反立体校正对丘陵区土地利用信息提取的影响  

The Effect of Geometric Correction and False Topographic Perception Correction on Land Use Information Extraction in Hilly Region

作　　者：王瑞[1] 何福红[1] 王涛[1] 赛莉莉 范擎宇 

机构地区：[1]鲁东大学地理与规划学院,山东烟台2504039

出　　处：《鲁东大学学报（自然科学版）》2014年第1期64-68,81,共6页Journal of Ludong University:Natural Science Edition

基　　金：国家自然科学基金(41001160);山东省中青年科学家奖励基金(BS2011NY005)

摘　　要：以北岩子口小流域为研究区,采用几何校正之后矢量化、反立体校正之后矢量化、几何校正反立体校正之后再矢量化等3种方法分别从小流域的GeoEye影像中提取土地利用信息,以DOM数据为标准进行对比分析,定量研究几何校正和反立体校正对丘陵区土地利用信息提取的影响.结果表明:几何校正会降低土地利用信息的提取精度;反立体校正能提高土地利用面积提取精度,但会使斑块形状发生变化.因此要根据研究需要选择方法,研究土地利用面积时,可选择先反立体校正之后矢量化再几何校正的方法;分析斑块边界形状时,可以直接进行矢量化再几何校正.Taking the Beiyanziko small watershed on Jiaodong Peninsula as research object, using three methods such as geometric correction, false topographic perception correction and both of them, the land use in- formation was extracted according to DOM and GeoEye data. Taking the land use information extracted from DOM as criteria, the effect of geometric correction and false topographic perception correction on land use in- formation extraction has been analyzed. The results show that geometric correction reduces the accuracy of land use information extraction. False topographic perception correction can improve the accuracy of land area ex- traction, but it can produce the change of the patch edge. So we should select different rnethod to extract land use information according to the actual need, such as choosing false topographic perception correction-vector- ization -geometry correction method when study land use area, and choosing vectorization-geometry correction method when analvze oatch h^undarv ~h^r~,~

关 键 词：几何校正 反立体校正 土地利用 胶东半岛丘陵区 

分 类 号：F301.2[经济管理—产业经济] TP751[自动化与计算机技术—检测技术与自动化装置]