Application of ZY3-03 Satellite Images in Basic Geographic Information Data Updating
In order to test the adaptability of ZY3-03 satellite images in the updating of basic geographic information data,this paper,based on the existing national technical standards and industrial technical specifications,combined with the contents and technical in-dicators of basic geographic information data updating,makes full use of the advantages of ZY3-03 satellite images,such as wide cov-erage,short access cycle,high mapping accuracy and low acquisition cost. The key technical processes and methods of updating basic geographic information data based on the ZY3-03 satellite images were explored. The experimental results show that the accuracy of digital orthophoto,digital elevation model and digital line graph results generated based on the ZY3-03 satellite images is high,which can fully meet the requirements of 1∶25000 scale basic geographic information data updating accuracy and can provide basic data source support for the revision and updating of 1∶25000 or 1∶50000 scale basic geographic data.
ZY3-03 satellite image stereoscopic surveying databasic geographic information data updatingdigital orthophotodigital elevation model
万方数据
维普
