利用GF-6影像结合国土“三调”开展西部地区县域自然资源调查
闫涵, 张毅

County-level natural resource survey in western China based on both GF-6 images and the third national land resource survey results
YAN Han, ZHANG Yi
图7 正射校正前后对比图
Fig.7 Comparison between before and after orthophoto correction