Study on Updating Method of DEM Based on Large-Scale Topographic Map

Author

Guo Liang ; Yang Wejun ; He Huagui ; Liang Feilong ; Huang Mingxiang

Author_Institution

Guangzhou Unban Planning & Design Survey Res. Inst., Guangzhou, China

fYear

2013

fDate

29-30 June 2013

Firstpage

1339

Lastpage

1342

Abstract

Our institude has a digital elevation model that is based on 2008 of ADS40 aerial photography production. DEM is already too old, in the nearly two years of actual use of this data. It have been found that the data is obviously not in line with the actual situation of the elevation. These problems generate direct result that DEM data is difficult to apply in areas which require the application of the three - dimensional GIS data such as urban planning, mobile base station location. So we must generate new updating procedures of Large - scale topographic maps and digital elevation model(DEM).

Keywords

digital elevation models; geographic information systems; geophysical image processing; solid modelling; 3D GIS data; ADS40 aerial photography production; DEM; digital elevation model; large-scale topographic; mobile base station location; updating method; urban planning; Fitting; Interpolation; Photography; Production; Rough surfaces; Surface fitting; Surface roughness; Big Scale; DEM; thiree dimentional; topographic maps;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Manufacturing and Automation (ICDMA), 2013 Fourth International Conference on

Conference_Location

Qingdao

Type

conf

DOI

10.1109/ICDMA.2013.319

Filename

6598243