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A Progressive Transmission Scheme for Vector Maps in Low-Bandwidth Environments Based on Device Rendering

  • David Cavassana Costa
  • Anselmo Cardoso de Paiva
  • Mario Meireles Teixeira
  • Cláudio de Souza Baptista
  • Elvis Rodrigues da Silva
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4231)

Abstract

The Internet has created an interesting environment for geospatial data sharing, so that users may transfer, visualize, manipulate and interact the data sets. This environment not only provides new opportunities to geospatial data usage, but also introduces new problems that should be addressed in order to provide an efficient and effective use of these datasets. One of such problems is related to the use of these spatial datasets in a low-bandwidth environment, such as those involving mobile computing. This paper presents a progressive transmission method for vector maps on the Web. The proposed method anticipates the map rasterization process to be performed at the server side, so that the amount of information transmitted may be reduced. We combine scale-dependent transmission techniques with simplification and progressive ones, in order to maximize the overall performance of a Web GIS environment.

Keywords

Compression Ratio Geospatial Data Scalable Vector Graphic Offline Phase Progressive Transmission 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • David Cavassana Costa
    • 1
  • Anselmo Cardoso de Paiva
    • 1
  • Mario Meireles Teixeira
    • 1
  • Cláudio de Souza Baptista
    • 2
  • Elvis Rodrigues da Silva
    • 2
  1. 1.Departamento de InformáticaUniversidade Federal do MaranhãoSão Luis, MaBrasil
  2. 2.Computer Science DepartmentUniversity of Campina GrandeCampina GrandeBrazil

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