The solutions in producing 5-meter grid DEM based on GF-7 stereoscopic satellite images
The stereoscopic satellite images of GF-7 can be used to produce 5-meter grid Digital Elevation Model(DEM).However,there are still numerous issues in DEM production,such as rendering anomaly,mismatch between DEM and stereoscopic image,and distortion of morphological expression.There fore,this paper addresses the aforementioned issues by analyzing the potential causes and proposing corre-sponding solutions,and it improves the production process of 5-meter grid DEM based on GF-7 stereo pairs,which can provide technical references for the designing and production of similar projects.
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