A methodology for image matching of historical maps
Mohamed S. El-Hussainy, Moustafa Ahmed Baraka, Maher A. El-Hallaq · 2011
Generally, maps are subject to spatial changes due to several factors. Some of these are older land 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 we combine information from existing paper maps with data from Global Positioning System (GPS) readings or with scanned maps or satellite imagery. Maps from different sources, from different types and different years (historical maps) do often miss the needed transformation parameters. The correct integration of these pieces of information (e.g. GIS data) requires a correct matching of the data as far as geographic location is concerned. This research aims to find an analytical objective methodology by which historical maps can be examined against modern ones to detect and locate the spatial changes using digital raster image processing techniques.