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Encyclopedia of GIS pp 1–10Cite as

Conflation of Geospatial Data

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Synonyms

Computer cartography; Geospatial data alignment; Geospatial data reconciliation; Imagery conflation

Definition

Geospatial data conflation is the compilation or reconciliation of two different geospatial datasets covering overlapping regions (Saalfeld, 1988). In general, the goal of conflation is to combine the best quality elements of both datasets to create a composite dataset that is better than either of them. The consolidated dataset can then provide additional information that cannot be gathered from any single dataset.

Based on the types of geospatial datasets dealt with, the conflation technologies can be categorized into the following three groups:

  • Vector to vector data conflation: A typical example is the conflation of two road networks of different accuracy levels. Figure 1shows a concrete example to produce a superior dataset by integrating two road vector datasets: road network from US Census TIGER/Line files, and road network from the department of...

Keywords

  • Voronoi Diagram
  • Vector Data
  • Delaunay Triangulation
  • Geospatial Data
  • Raster Dataset

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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Conflation of Geospatial Data, Fig. 1
Conflation of Geospatial Data, Fig. 2
Conflation of Geospatial Data, Fig. 3
Conflation of Geospatial Data, Fig. 4
Conflation of Geospatial Data, Fig. 5

References

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Author information

Authors and Affiliations

  1. Geosemble Technologies, El Segundo, CA, USA

    Ching-Chien Chen

  2. Department of Computer Science, University of Southern California, Marina del Rey, CA, USA

    Craig Craig Knoblock

Authors
  1. Ching-Chien Chen
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  2. Craig Craig Knoblock
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Editor information

Editors and Affiliations

  1. Minneapolis, Minnesota, USA

    Shashi Shekhar

  2. Rutgers Business School, Newark, New Jersey, USA

    Hui Xiong

  3. The University of Iowa Tippie College of Business, Iowa City, Iowa, USA

    Xun Zhou

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© 2016 Springer International Publishing Switzerland

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Chen, CC., Knoblock, C.C. (2016). Conflation of Geospatial Data. In: Shekhar, S., Xiong, H., Zhou, X. (eds) Encyclopedia of GIS. Springer, Cham. https://doi.org/10.1007/978-3-319-23519-6_182-2

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  • DOI: https://doi.org/10.1007/978-3-319-23519-6_182-2

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  • Online ISBN: 978-3-319-23519-6

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