Automatic Aerial Image Alignment for GeoMemories

In the last few years, aerial and satellite pho- tographs have become more an more important for historical records. The availability of Geographical Information Systems and the increasing number of photos made per year allows very advanced fruition of large number of contents. In this paper we illustrate the GeoMemories approach and we focus on its automatic image alignment architecture. The approach leverages on a set of georeferenced images used as knowledge base. Local features are used in combination with compact codes and space transformation to achieve high level of efficiency.