OBJECT IDENTIFICATION BASED ON MULTI-REMOTE SENSING IMAGES IN THE LACKING AREA OF 1:50 000 TOPOGRAPHIC MAP OF TIBETAN PLATEAU

摘要

The lacking of 1:50000 topographic maps in western China is inconvenient to the national economic development. The rapid development of space technology, computer technology and information technology provides technological support for the remote sensing application. In addition, the enhancement of ability of obtaining hyper-resolution data provides data for feature extraction of ground objects. This paper employs SPOT5 RS image, based on the schema standard of 1:50000 topographic maps, to interpret the Qixiangcuo region in the Tibetan Plateau. The results indicate that the SPOT5 can meet the needs for 1:50000 topographic mapping. In order to further improve the interpretation multi-temporal and multi-resolution image are suggested to be used to interpret ground objects in 1:50000 topographic maps.