Abstract
Mapping of urban growth is different then the mapping of urban area. Urban area can be detected and mapped using a single temporal image, that is, image from a specific time. However, mapping of urban growth necessitates minimum of two temporal imageries; since it actually means the mapping of changes between two different times. This process is often called change detection—the process of identifying differences in the state of an object or phenomenon by observing it at different times (Singh 1989). Mapping of urban growth can lead to motoring of urban area and its growth through time.
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Notes
- 1.
More discussion on display of multispectral image on a colour monitor can be found in Bhatta (2008).
- 2.
Changes will appear in bright red if the pixel reflectance value increases due to change. In case of decrease in reflectance value, changes will appear in cyan colour instead of red.
- 3.
Image registration is fitting of the coordinate system of one image to that of a second image of the same geographic area.
- 4.
For more information on the IHS transform, see Harris et al. (1990) and Liu and Mason (2009). For an introduction to image fusion in remote sensing, see Pohl and Van Genderen (1998) and Liu and Mason (2009).
- 5.
Phenology is the study of periodic plant (and animal) life cycle events and how these are influenced by seasonal and inter-annual variations in climate.
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© 2010 Springer-Verlag Berlin Heidelberg
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Bhatta, B. (2010). Mapping and Monitoring Urban Growth. In: Analysis of Urban Growth and Sprawl from Remote Sensing Data. Advances in Geographic Information Science. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-05299-6_5
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DOI: https://doi.org/10.1007/978-3-642-05299-6_5
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