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Traditional methods of terrestrial survey to acquire DEM cannot meet the requirement of acquiring large quantities of data in real time, but the DSM can be quickly obtained by using the dual antenna s...
Described are experimental results of a first approach towards optimal shaded relief representation of the surface of Mars derived from Viking Orbiter digital imagery. The complex problem addresses ho...
The development of digital terrain analysis based on DEM is helpful for the simulation of astronomic radiation in rugged area. However the effect of DEM scale causes great uncertainty to the simulatio...
Ideally a country (region, city, etc.) is covered with homogeneous data sets. Unfortunately, this ideal situation does not often present itself. Frequently, we have a number of different existing dat...
The „normal“ product of a TopoSys DEM is a raster based DSM / DTM. A TopoSys DSM / DTM is not a standard product. It is processed for the application of the customer. Because of the high data r...
A novel approach in image classification to bedrock mapping is applied to a 1:100 000 scale map area of the Meta Incognita Peninsula Baffin Island, Nunavut, Canada to support mapping of the Paleopro...
SAR image geocoding needs an accurate DEM, but such a DEM can be difficult to obtain. This paper shows that the needs of geocoding can be satisfied using the DEM generated by employing a rigorous geom...
针对目前DEM格网精度从理论上难于统一量化描述问题,提出一种基于随机过程的格网DEM(grid digital elevation model, grid DEM)精度场模型,该模型从随机过程理论入手,借助DEM的统一插值模型,建立了DEM两类误差(噪声误差和逼近误差)的数学表达,并分析了构成DEM误差的各个分量的数学意义。与已有的模型相比,该模型实现了传统DEM两类误差的统一描述,此外,该模型适...

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