collaborative mapping

GeoSIM (Geo Social Image Mapping) is an urban sensing system with which a group of individuals with camera-equipped mobile phones participate in collaborative/social mapping of the urban image (i.e., the texture of the urban environment) at some target geolocation. The participating group, which may either consist of dedicated individuals or the general public, manually capture geotagged images of the urban environment. The collected images are progressively used for documentation of the dynamic urban image in multiple spatial resolutions at different times.