The Utilization of Photogrammetry Technology in Island Topographic Survey

Based on producing island topographical map,DEM and orthograph for scales of 1∶10000,following the processing of photo controls surveying,field annotating,aerotriangulating,stereomapping,this paper summarizes the technology and the process of photogrammetry used in littoral and island topographic survey.Comparing the results with old method of littoral topographic survey,this technology contents the "Specification for hydrographic survey",and can be used in the area of littoral topographic survey.