The application of least squares collocation in the error processing of vector map scanning

Author

Li, Xifeng

Author_Institution

Sch. of Archit. & Civil Eng., Liaocheng Univ., Liaocheng, China

fYear

2011

fDate

24-26 June 2011

Firstpage

1

Lastpage

4

Abstract

The vector map scanning is one of the main method that GIS acquires data. The raster data can be converted to vector data by affine transformation. But it only can eliminate the whole distortion error of map, but the local distortion and local systematic error can not be eliminated. The method of least squares collocation can estimate local deformation signal system at the same time calculating transformation parameters, which can eliminate or weaken the impact of these errors, improve the accuracy of digital. The feasibility and effectiveness of least squares collocation can be validated by example in the process of digital scanning, We draw a conclusion by contrast that the least squares collocation mode is the first model of Vector map scanning.

Keywords

data acquisition; geographic information systems; least squares approximations; affine transformation; data acquisition; geographic information systems; least squares collocation; local deformation signal system; raster data; scanning error processing; vector data; vector map scanning; Accuracy; Cost accounting; Equations; Geographic Information Systems; Mathematical model; Process control; Vectors; affine commutation vector; least squares collocation; map scanning; vector;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoinformatics, 2011 19th International Conference on

Conference_Location

Shanghai

ISSN

2161-024X

Print_ISBN

978-1-61284-849-5

Type

conf

DOI

10.1109/GeoInformatics.2011.5980985

Filename

5980985