With the growing use of digital map data, the requirements for frequent and efficient revision of digital map databases is equally growing. Revision of map databases can be divided into 3 steps: Change detection, classification of changes and registration/updating of the thematic layers of the database. Often the change detection step is carried out in an entirely manual workflow, which calls f...

Monitoring and identification of disasters are crucial for mitigating their effects on the environment and on human population, and can be facilitated by the use of unmanned aerial vehicles (UAV), equipped with camera sensors which can produce frequent aerial photos of the areas of interest. A modern, promising technique for recognition of events based on aerial photos is deep learning. In this...

Abstract Morphometric analysis is a powerful tool to understand the hydrological process quantitatively and main requirement determine characteristics of watershed. drainage Sedayu River Sub-watershed, Semaka District, Tanggamus Regency, Lampung Province was carried out using Digital Elevation Model (DEM) data. The primary data used aerial photography drones, location photos representing waters...

Large size digital aerial frame cameras like Intergraph DMC and Vexcel UltraCam are becoming standard for photogrammetric application. It is difficult to compare the information contents of such cameras with this of analogue photographic cameras. Also the rules for project planning have to be checked if the old relation between photo scale and map scale is still valid. The photo scale has no lo...

Anders Hast, Uppsala University, Sweden, [email protected] Carlotta Capurro, Visual Dimension, Belgium Dries Nollet, Visual Dimension, Belgium Daniel Pletinckx, Visual Dimension, Belgium Benito Vilas Estevez, Universidad de Gales Trinity Saint David, Spain Miguel Carrero Pazos, Universidade de Santiago de Compostela, Spain Jose María Eguileta Franco, Sección de Arqueoloxía, Concello de Ouren...

This paper describes an automatic change detection of roads using aerial photos and digital maps. The task is based on the idea that one can derive information about the changes strictly from its imagery once the geometric relationship among data sets is correctly recovered. The goal of research is achieved by using the Modified Iterated Hough Transform (MIHT) algorithm, the result of which not...

Historical aerial photographs dramatically document changes in Florida’s land use. Between 1938 and 1971, the U.S. Department of Agriculture (U.S.D.A.) created more than 88,000 black and white, 9 x 9 aerial photographs with 2,500 accompanying photomosaic indexes (19381971) of Florida. Flight lines were county based and each flight created dozens of individual aerial photographs, or tiles. Due t...