Object-Oriented Classification for Change Detection With Different Spatial Resolution Images

With rapid new technological development during the past 50 years, aerial photos have been increasingly and commonly used not only in geographic information systems but also in various spatially related applications. In addition, diverse aerial photo products such as topographic maps, digital elevation models and orthophotos play an important role in these fields. These are reasons why many municipalities and government agencies have constructed aerial photo database in Canada and also in other nations. In Canada, for example, in federal case the National Airphoto Library (NAPL) by Natural Resources Canada archives over six million aerial photos covering all of Canada. In provincial case, the Provincial Softcopy Orthophotomap Database (SODB) by the Service New Brunswick (SNB) was created from aerial photos for the whole province.