DocumentCode :
1999880
Title :
Uncertainty in Position of Objects as an Influence Factor of the Area Value
Author :
Ivánová, Ivana ; Vajsáblová, Margita
Author_Institution :
Dept. of Theor. Geodesy, Slovak Univ. of Technol., Bratislava
fYear :
2005
fDate :
26-26 Aug. 2005
Firstpage :
468
Lastpage :
472
Abstract :
We present an influence of the uncertainty in positional accuracy of area feature in area value. Area feature is bounded by closed linear feature, which is a composition of point feature with defined uncertainty in position. One of the determining factors in calculating an uncertainty of area value of feature is an index of compatibility of area feature. Index of compatibility determines the shape of the area feature. We treat an area of the uniform and non-uniform epsiv of the confidence region around the linear feature as well. Especially for uniform error band we define a regress function of dependence of area value of confidence region and shape of the area feature and epsiv. In the article we define a shape of the confidence region and also calculation of its area. We concern a normal distribution function of random errors. Result of our research is a suggestion of defining a positional accuracy of linear and area feature in context of data quality definition in ISO 19100 series of standards for geographic information
Keywords :
error statistics; geographic information systems; normal distribution; visual databases; area feature; area value; closed linear feature; confidence region; data quality definition; geographic information; normal distribution function; random error; regress function; spatial database; spatial information system; uncertainty position; Civil engineering; Gaussian distribution; Geodesy; Geometry; ISO standards; Information systems; Mathematics; Shape; Spatial databases; Uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Database and Expert Systems Applications, 2005. Proceedings. Sixteenth International Workshop on
Conference_Location :
Copenhagen
ISSN :
1529-4188
Print_ISBN :
0-7695-2424-9
Type :
conf
DOI :
10.1109/DEXA.2005.194
Filename :
1508317
Link To Document :
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