Wayfinding Accessibility

Might be useful...

A Survey of Digital Map Processing Techniques
http://dl.acm.org/citation.cfm?id=2557423
Yao-Yi Chiang, Stefan Leyk, Craig A. Knoblock

Maps depict natural and human-induced changes on earth at a fine resolution for large 
areas and over long periods of time. In addition, maps—especially historical 
maps—are often the only information source about the earth as surveyed using 
geodetic techniques. In order to preserve these unique documents, increasing numbers of 
digital map archives have been established, driven by advances in software and hardware 
technologies. Since the early 1980s, researchers from a variety of disciplines, including 
computer science and geography, have been working on computational methods for the 
extraction and recognition of geographic features from archived images of maps (digital 
map processing). The typical result from map processing is geographic information that can 
be used in spatial and spatiotemporal analyses in a Geographic Information System 
environment, which benefits numerous research fields in the spatial, social, 
environmental, and health sciences.


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