TITLE:
Comparison of Digital Maps: Recognition and Quantitative Measure of Changes
AUTHORS:
Lev Spivak, Ivan Spivak, Alexey Sokolov, Sergey Voinov
KEYWORDS:
Maps Comparison, Object Map of Territory, Change Detection, Local Measure of Difference, Integral Measure of Difference, Sustainable Spatial Planning and Land Management
JOURNAL NAME:
Journal of Geographic Information System,
Vol.6 No.5,
October
6,
2014
ABSTRACT: A new methodology of
comparing digital raster maps was proposed which allows not only detecting
changes in the maps, but also obtaining quantitative measures of the importance
of selected differences. Procedure of object interpretation of satellite images
and forming of OMT (Object Map of Territory) is described. A list of allowable differences
between two OMTs is defined. Two steps technique of quantitative measuring is
proposed. At the first stage functions are constructed for calculating local
measures of differences in the amount, areas and locations of objects on the
map, as well as relations between the objects. In the second stage local
measures are used to calculate the integral measure in order to get generalized
assessment of difference between maps. The methods for constructing functions
which calculate local and integral measures of differences are described.
Examples of comparing and measuring the differences between OMTs are provided.
Obtained results by utilizing this technique can be used to analyze trends,
forecast of development and might be helpful for choosing most efficient
scenarios for sustainable spatial planning and land management.