出版社：National Centre for Maps and Cartographic Heritage
摘要：Generally, maps are subject to spatial changes due to several factors. Some of these are olderland surveying and mapmaking techniques, human endeavor (unwitting errors, misrepresentation, bias, or outright fraud), switching to newer and more accurate spheroids or projections,and intentional spatial changes for political or security purposes. This problem arises when wecombine information from existing paper maps with data from Global Positioning System(GPS) readings or with scanned maps or satellite imagery. Maps from different sources, fromdifferent types and different years (historical maps) do often miss the needed transformationparameters. The correct integration of these pieces of information (e.g. GIS data) requires acorrect matching of the data as far as geographic location is concerned. This research aims tofind an analytical objective methodology by which historical maps can be examined againstmodern ones to detect and locate the spatial changes using digital raster image processingtechniques
关键词：Historic Maps; Modern Maps; Image Processing; Transformation; Correlation
