Design and Implementation of Hebei Historical Image Electronic Map Display System
In response to the growing demand of the public for historical remote sensing images and the increasingly serious phenomenon of geographic information data islands,this paper integrates the historical remote sensing image data of Hebei Province from 2016 to 2020,and standardizes the image through grid resampling,image clipping,image mosaic,grid projection,image color uniformity,and other steps,and pro-duces 5 years of image electronic map tile data. Based on the B/S model,the electronic map display system of historical images of Hebei Prov-ince has been developed,which has realized the functions of online browsing,query and navigation,online labeling,split screen comparison,layer control,map service release and management,and urban expansion analysis and change detection of the pilot area. It provides services for the historical tracing and analysis of space-time evolution of the whole province.
data islandremote sensing imagegeographic information systemevolve from time to time
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万方数据
