A general approach to discovering, registering, and extracting features from raster maps

Introduction • Raster maps are a rich source of geospatial data: — Easily accessible — Many different types of information — Often contains information that cannot be found elsewhere Challenges • Maps have lots of useful information, but… — They have overlapping features — There is limited access to the meta-data — Often only available in raster format • How do we find, register, and extract and recognize the features in a raster map