PT Unknown
AU Xavier Baro
   Sergio Escalera
   Petia Radeva
   Jordi Vitria
TI Visual Content Layer for Scalable Recognition in Urban Image Databases, Internet Multimedia Search and Mining
BT 10th IEEE International Conference on Multimedia and Expo
PY 2009
BP 1616–1619
AB Rich online map interaction represents a useful tool to get multimedia information related to physical places. With this type of systems, users can automatically compute the optimal route for a trip or to look for entertainment places or hotels near their actual position. Standard maps are defined as a fusion of layers, where each one contains specific data such height, streets, or a particular business location. In this paper we propose the construction of a visual content layer which describes the visual appearance of geographic locations in a city. We captured, by means of a Mobile Mapping system, a huge set of georeferenced images (> 500K) which cover the whole city of Barcelona. For each image, hundreds of region descriptions are computed off-line and described as a hash code. This allows an efficient and scalable way of accessing maps by visual content.
ER