In the fiften-minute radio show Frequency X broadcasted on a national radio station Val 202, Luka Hvalc hosted dr. Aleš Marsetič, Research fellow at the Department of Remote Sensing at the Institute of Antropological and Spatial Studies of Research Centre of the Slovenian Academy of Sciences and Arts. His main research work are photogrammetric applications in satellite remote sensing, registration and processing of optical satellite imagery, spatial analysis and analyses of laser scanning data (lidar). He has expertise in the automatization of processes involving satellite data preprocessing with innovative models. He also participates in the designing and construction of small satellites. In the show, they discussed the four archaeological expeditions in the Mexican federal state of Campeche, where he partecipated. At the field work he was responsible for measuring and mapping of archaeological sites along with processing and 3D visualization of data. They talked also about the Slovenian small satellite and the processing of satellite images and its possible applications.
D.11 Other
COBISS.SI-ID: 41898285The lecture presented a fully automatic orthorecti?cation procedure for various VHR sensors. The process includes three main modules: extraction of ground control points (GCPs), geometric modelling, and orthorecti?cation. Comparison of the results to the reference national aerial orthophotos shows the accuracy of sub-pixel values at independent checkpoints. The procedure also supports the creation of true satellite orthoimages – images with corrected distortions due to high objects. True orthoimages can improve the interpretability and accuracy of derived thematic products, particularly in urban areas, but they require fusion of multiple VHR orthoimages of the same area.
B.04 Guest lecture
COBISS.SI-ID: 45702445In the lecture, I introduced the Centre of Excellence Space-SI, which deals with space technologies. Space-SI manufactures ground stations, which are designed to provide real-time communication with satellites. Currently it has two ground stations. First is located in the Primorska region while the second, the product of Slovenian design, stands in Ljubljana. Space-SI is also developing NEMO-HD microsatellite for Earth Monitoring and Observation in collaboration with the Space Flight Laboratory (SFL) at the University of Toronto Institute for Aerospace Studies. It has also developed and implemented a complete fully automatic processing chain (called STORM). The processing chain includes all necessary processing steps from sensor-corrected optical satellite image up to web-delivered map-ready products.
B.04 Guest lecture
COBISS.SI-ID: 43163949