A conversion and management system for parcel maps

Author

Hsieh, C.C. ; Fan, S.M. ; Shih, P.H. ; Chiu, H.S.

Author_Institution

Technol. Res. Div., Inst. for Inf. Ind., Taipei, Taiwan

fYear

1994

fDate

9-11 Nov 1994

Firstpage

457

Lastpage

462

Abstract

In this paper, a new system for parcel map conversion and management is proposed. A scanner was used to input paper source maps into a computer. Text is separated from graphics by finding a connected component. Thinning and tracing are then executed by utilizing run-length codes for straight line extraction. A program is found if a closed loop is detected. All the extracted objects are stored into a spatial database. Attribute data such as land number, land use label, and land owner are saved into an attribute database. Topology representing the relations among objects is also generated and saved into the attribute database. We can query attribute data by spatial data and vice versa. A3 size parcel maps and Taipei administrative map are tested. The experimental results show that the proposed system is very effective and friendly

Keywords

cartography; document image processing; geographic information systems; query processing; visual databases; Taipei administrative map; attribute data; attribute database; closed loop; computer graphics; document imaging; land number; land owner; land use label; paper source map; parcel map conversion system; parcel map management system; query; run-length codes; scanner; spatial database; straight line extraction; text; thinning; tracing; Character recognition; Computer graphics; Costs; Data mining; Image coding; Image segmentation; Object detection; Spatial databases; Text recognition; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Software and Applications Conference, 1994. COMPSAC 94. Proceedings., Eighteenth Annual International

Conference_Location

Taipei

Print_ISBN

0-8186-6705-2

Type

conf

DOI

10.1109/CMPSAC.1994.342762

Filename

342762