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Determination of Urban Growth by the Night-Time Images
Abstract
Urbanization in Turkey and in the world has increased in the last 30 years. Therefore, urban areas having a dynamic structure should be regularly monitored, and the urban region should be determined. There is a need of accurate current data that enables the monitoring of the temporally changing urban development and land use at regular intervals. In order to determine the urban sizes, the 2010 DMSP-OLS (US Air Force Meteorological Satellite Program – operational line scan system) nighttime images are used. This chapter is adapted to all provinces of Turkey. Nighttime images in the literature are mainly used for examining the global economic and demographic differences between countries. In order to determine the urban growth from nighttime images, two different image analyses including object-based and cell-based methods are used in this study. Object-oriented image analysis method includes image segmentation studies, and cell-based classification method contains natural breaks and OTSU method.
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