基于CBERS-02B卫星IHR影像及多源数据的1：1万地形图局部更新应用研究

Research on Maps Updating of 1:10000 Topographic Using CBERS-02B IHR and Multi-source Data

利用CBERS-02B的2.5 m高分辨率影像IHR数据,通过正射纠正,与多源数据进行融合比较,分析其在地形图上局部更新的可能。研究表明,利用正射校正后的IHR数据,结合土地利用更新调查等多源数据,可以进行1∶1万地形图局部更新,从而加快地形图的更新周期,提高地形图的现势性。

This paper analyses problems in application of local topographic map updating by using ortho-rectiffed CBERS-02B IHR data （2.5 m high-resolution images） which is compared with multi-source data. The experimental research results will hopefully serve as useful feedback information for using ortho-rectified IHR data combining with land-use updated surveys or other multi-sources data to renew 1.10000 topographic maps. Consequently, update cycle of topographic maps is shortened and value of up-to-date is improved.