نوع مقاله : مقاله پژوهشی
نویسندگان
ندارد
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Today monitoring urban changes seems quite necessary for studing the physical
development of cities and the destruction of envirnoment as well as preventing
extreme urban expansion. For monitoring urban changes precise and inclusive
information is needed. The result of this information analysis is used for decision
making on rendering services and facilities and also preventing illegal construction
outside the city boarders. During the recent years, the progress of the technology of
remote assessment and the satellite images have been widely used specially in urban
studies. In these studies the satellite images of 1383 and the areial pictures of 1358 and
1368 and the land application map of 1375 have been used for change detection.
Numerous methods are applied for change detection such as visual and spectrum
investigation, differencial study, rationing, NDVI and RGB – NDVI, regression, post
classification, fussy logic and pca. In this plan, visual method is used for revealing
changes. In this method the major change was related to changing unutilized coverings
into buildings. The buildings include asphalt (passageways and ceiling with tar and
asphalt covering) dusty passageways and the installations with non asphalt covering
include excavation operations.
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