Overcoming Object Misalignment in Geo-Spatial Datasets
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Date
2014
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Geographic Information System
Abstract
In integrating geo-spatial datasets, sometimes layers are unable to perfectly overlay each other. In
most cases, the cause of misalignment is the cartographic variation of objects forming features in
the datasets. Either this could be due to actual changes on ground, collection, or storage approaches
used leading to overlapping or openings between features. In this paper, we present an alignment
method that uses adjustment algorithms to update the geometry of features within a dataset
or complementary adjacent datasets so that they can align to achieve perfect integration. The
method identifies every unique spatial instance in datasets and their spatial points that define all
their geometry; the differences are compared and used to compute the alignment parameters.
This provides a uniform geo-spatial features’ alignment taking into consideration changes in the
different datasets being integrated without affecting the topology and attributes.
Description
Keywords
Object-Based, Geometry Alignment, Geo-Spatial Management
Citation
Wadembere, I. and Ogao, P. (2014) Overcoming Object Misalignment in Geo-Spatial Datasets. Journal of Geographic Information System, 6, 307-316. http://dx.doi.org/10.4236/jgis.2014.64028