搜索结果: 31-45 共查到“工学 databases”相关记录78条 . 查询时间(0.022 秒)
Experiences in Upgrading of Large Databases of Satellite Images
Automation Spatial Database QuickBird
<
2015/7/7
Many technical aspects are involved in the upgrading of satellite image databases: geometric registration, resampling, radiometric
adjustment, mosaicking. In this paper, after an overview of all prob...
Nowadays cartographic objects of different resolutions are hold in different coexisting databases. This implies an extensive amount
of work for updating an object in all resolutions. One way to reduc...
Linking Different Geospatial Databases by Explicit Relations
GIS Integration Interoperability
<
2015/7/6
The growing awareness of the importance of spatial information has led to a continuously increasing demand for geospatial data.
Thus, a lot of different companies and institutions have evolved that a...
Multiple Representation Databases to Support Visualisation on Mobile Devices
Cartography Multiresolution Databases
<
2015/7/6
This paper presents some applications of mobile map technology utilising an MRDB (multi-resolution/-representation database). An
MRDB can be described as a spatial database, which can be used to stor...
QUALITY ASSESSMENT OF ROAD DATABASES USING AERIAL IMAGERY
Database GIS Imagery Networks Parameters Quality Reliability
<
2015/6/1
Digital road databases are widely used in many facets of our daily life. Most of these databases come with a nominal quality indication, but often more detailed quality descriptions regarding possible...
OBJECT-BASED EVALUATION OF LIDAR AND MULTISPECTRAL DATA FOR AUTOMATIC CHANGE DETECTION IN GIS DATABASES
GIS Change Detection Fusion Classification LIDAR Multispectral
<
2015/6/1
The automatic interpretation of aerial and satellite images is one of the main important research topics in photogrammetry and image analysis. The aim of the interpretation is the recognition or verif...
Nowadays, sharing the huge amount of geo-data is the main GIServices challenge. However, the new generation of handheld devices together with the growth of wireless web network, provide a suitable pla...
AUTOMATIC CHANGE DETECTION FOR VALIDATION OF DIGITAL MAP DATABASES
Photogrammetry Remote Sensing Change Detection Classification Automation High Resolution Infra-red, DEM/DTM
<
2015/6/1
In almost all areas of our society there is an increasing need for up to date digital map databases. Traditionally, different manual,labour intensive and hence costly methods have been used for map up...
AUTOMATIC CHANGE DETECTION OF GEOSPATIAL DATABASES BASED ON A DECISION-LEVEL FUSION TECHNIQUE
Urban Geospatial Database GIS Information Fusion Change Detection Artificial Intelligence Computer Vision
<
2015/6/1
Monitoring of changes in topographic urban geospatial databases (UGDs) is one of the main requirements of urban planners, urban decision-makers and managers. In this paper, an attempt has been made to...
Extraction of Road Geometry Parameters from Laser Scanning and Existing Databases
Road Parameter Extraction Digital Road Databases Laser Scanning Data Fusion
<
2015/5/26
Today's car navigation systems have reached a high level of maturity, using huge map databases with a high coverage and
up-to-dateness. However, as additional applications gain importance, such as ad...
AUTOMATED UPDATE OF ROAD DATABASES USING AERIAL IMAGERY AND ROAD CONSTRUCTION DATA
Change Detection Database GIS Imagery
<
2015/5/18
The update of geodata is an important task in order to ensure a high level of data quality in Geographic Information Systems (GIS).
Today, this work is carried out mostly manually by an operator, who...
EXTRACTING LANDMARKS FOR CAR NAVIGATION SYSTEMS USING EXISTING GIS DATABASES AND LASER SCANNING
Car Navigation Landmarks GIS
<
2015/5/18
Today’s car navigation systems provide driving instructions in the form of maps, pictograms, and spoken language. However, they are
so far not able to support landmark-based navigation, which is the ...
DETECTION OF BUILDINGS IN COLOUR AND COLOUR-INFRARED AERIAL PHOTOS FOR SEMI-AUTOMATED REVISION OF TOPOGRAPHIC DATABASES
Change Detection Urban Remote Sensing
<
2015/3/24
With the growing use of digital map data, the requirements for frequent and efficient revision of digital map databases
is equally growing. Revision of map databases can be divided into 3 steps...
IMPROVING AUTOMATED GENERALIZATION FOR ON-DEMAND WEB MAPPING BY MULTISCALE DATABASES
IMPROVING AUTOMATED GENERALIZATION ON-DEMAND WEB MAPPING MULTISCALE DATABASES
<
2015/3/17
IMPROVING AUTOMATED GENERALIZATION FOR ON-DEMAND WEB MAPPING BY MULTISCALE DATABASES.
A METHODOLOGY FOR UPDATING GEOGRAPHIC DATABASES USING MAP VERSIONS
UPDATING GEOGRAPHIC DATABASES MAP VERSIONS
<
2015/3/17
A METHODOLOGY FOR UPDATING GEOGRAPHIC DATABASES USING MAP VERSIONS.