搜索结果: 31-45 共查到“测绘科学技术 Spatial Data”相关记录130条 . 查询时间(0.093 秒)
Registration of Spatial data Based on PCA
Registration PCA Coordinate Transformation Spatial Data
2015/12/2
Registration of spatial data based on PCA is advanced in the paper. The principle is that principal components of spatial data set are changed with the coordinate system. For two spatial data sets of ...
Technical design is a crucial part of project implementation and main basis for organizing production. With the development of surveying and mapping technology and its system, spatial data show more n...
Digital Elevation Model Database W42 - A Scalable System for Spatial Data
DEM/DTM Mapping Mosaic Software System Spatial Databases
2015/11/24
Digital Elevation Models (DEMs) provide elementary information for various application fields. From a global point of view, there are many different sources to furnish height information of the Earth'...
Spatial Data Positional Accuracy Analyzing and Testing
DLG GPS Quality Control Accuracy Testing Error Distribution
2015/10/12
In this article 1:50000 DLG data is used as an example to analyze and test spatial data positional accuracy.At first 1:50000 DLG data
acquisition technical process and data content is simply introdu...
Spatial Data Sharing and Interoperability Based on Web Spatial Data Service and GML
Spatial Data Sharing Interoperability Web Service GML
2015/10/12
In recent years, China made great progress in the field of Spatial Data Infrastructure. But spatial data sharing and interoperability was
not taken into inadequate consideration. In this paper, thre...
Change Detection Based on Spatial Data Mining
Photogrammetry Land Cover Change Detection Data Mining Photography
2015/10/12
Spatial data mining (SDM) and change detection (CD) are hot issues in the field of geospatial information processing. Considering
the feasibility of discovering knowledge from spatial database and t...
THE IMPACT OF SPATIAL DATA QUALITY ON COMPANY’S DECISION MAKING
Spatial data spatial information business information analysis decision-making benefit
2015/9/28
The impact of spatial data quality on decision-making depends on the role of the geographic information system (GIS) in the company. The requirements for data quality are different depending on whethe...
INSPIRE is a given so attention turns to implementation. Of particular interest is the creation of Spatial Data Infrastructures (SDIs).In Great Britain (GB) we have been attempting to create a SDI for...
ANALYSIS OF UNCERTAINTIES IN VISUALIZING REMOTE SENSING AND SPATIAL DATA
Remote Sensing Image Processing Iron Ore Spatial Data Visualization Uncertainties
2015/9/28
The maintenance of satellite and spatial data quality is an important task and escalating interest amongst geospatial community. The visualization of perfect earth surface features by relative respons...
WHAT COMMUNICATES QUALITY TO THE SPATIAL DATA CONSUMER?
spatial data quality consumers communication
2015/9/28
For almost 20 years now, spatial data providers have been creating and publishing metadata records for their products. One intention of the metadata, which includes detailed data quality information, ...
AN ONTOLOGY-DRIVEN APPROACH FOR SPATIAL DATA QUALITY EVALUATION
geographic information ontologies quality evaluation workflow management
2015/9/28
The process of spatial data quality evaluation is a set of interrelated activities aiming to produce a data quality result, and moreover,to fulfil the quality requirements set forth by the customers. ...
PREVENTION OF SPATIAL DATA COMPRESSION QUALITY DEGRADATION
Compression indexing Huffman blocking mobile
2015/9/28
Data indexing and compression procedures have enabled several significant advances in the application of spatial data. Data coverage, portability, transfer, multi-scale representation (pyramids), quer...
FOUR ADVANCES IN HANDLING UNCERTAINTIES IN SPATIAL DATA AND ANALYSIS
uncertainty quality control spatial data spatial analysis spatial model
2015/9/28
Data quality and uncertainty modeling for spatial data and spatial analyses is regarded as one of the disciplines of geographic information science together with space and time in geography, as well a...
SPATIAL DATA UNCERTAINTY IN A WEBGIS TOOL SUPPORTING SEDIMENTS MANAGEMENT IN WALLONIA
WebGIS River Sediments Basin Management Plans Environmental Communication Geospatial Data Uncertainty Quality Assessment
2015/9/21
This paper describes a WebGIS prototype developed for the Walloon administration to improve the communication and the management of sediments dredging actions carried out in rivers and lakes. In Wallo...
SPATIAL DATA QUALITY AND A WORKFLOW TOOL
Spatial Data Quality Communication Producer Consumer Fitness for Use Open Data LPIS ETS
2015/9/21
Although by many perceived as important, spatial data quality has hardly ever been taken centre stage unless something went wrong due to bad quality. However, we think this is going to change soon. We...