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REINVENTING THE NATIONAL TOPOGRAPHIC DATABASE
Topographic Mapping Core Data Spatial Data Infrastructure 3D 4D Persistent Identifiers
2016/11/8
The National Land Survey (NLS) has had a digital topographic database (TDB) since 1992. Many of its features are based on the Basic Map created by M. Kajamaa in 1947, mapping first completed in 1977. ...
Object-Based Verification and Update of a Large-scale Topographic Database
Change detection updating databases aerial reference data
2016/1/25
It is well known that there is a growing need for consistent and up-to-date GIS-data at various scales. This paper describes a system
for semiautomatic quality assessment and update of an existing l...
ADDING THE THIRD DIMENSION TO A TOPOGRAPHIC DATABASE USING AIRBORNE LASER SCANNER DATA
3D Reconstruction topographic features data fusion laser scanner data segmentation modelling
2015/8/31
Laser altimetry provides reliable and detailed 3D data, which to certain extent, can be processed (semi-)automatically into 3D information. The use of an additional source of information, like 2D GIS ...
ADDING THE THIRD DIMENSION TO A TOPOGRAPHIC DATABASE USING AIRBORNE LASER SCANNER DATA
3D Reconstruction topographic features data fusion laser scanner data segmentation modelling
2015/8/28
Laser altimetry provides reliable and detailed 3D data, which to certain extent, can be processed (semi-)automatically into 3D information. The use of an additional source of information, like 2D GIS ...
STRATEGIES FOR UPDATING A NATIONAL 3-D TOPOGRAPHIC DATABASE AND RELATED GEOINFORMATION
Photogrammetry Topographic Databases Revision Production Infrastructure DEM/DTM
2015/6/1
A national topographic database for Denmark was established during the 1990’ies and completed at the end of year 2000. The database comprises three components: A 3-D vector database with full topology...
FUSION OF SATELLITE IMAGERY AND DIGITAL TOPOGRAPHIC DATABASE BASED ON DISJOINT OBJECTS
Artificial intelligence GIS Integration Land use / Landcover Semantics
2014/12/30
Monitoring of changes in an integrated topographic database and remote sensing environment will be a main requirement for future projects. In this paper an approach is proposed for an improved and aut...