Research on the Dom Update Based on Zy-3 Satellite Images and Image Control Points Database
نویسندگان
چکیده
It is proposed a new method that quick updating 50,000 scale DOM based on the ZY-3 satellite images and Images Control Points Database obtained from the existing 10,000 scale DOM and DEM. The construction of GCP Image Database is introduced, and the fast searching GCP Image Chips from the database is proposed. And the auto-matching and elimination of error points are presented. What’s more, experiments in the representative area, such as Heilongjiang and Gansu Province, has been implemented and analyzed. The result demonstrates the feasibility and high-efficiency. At last, popularization the updating method in the whole country is recommended to meet the quickly developing requirement, especially in the West China.
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