Second international GEOBENCH workshop in Krakow: the Institute of Geodesy took part

The GEOBENCH workshop is designed for everyone working with geospatial data, and was visited by academic institutions, research centers, and companies. Topics involved evaluation of sensors and algorithms, sensor calibration, and benchmark systems, thereby broadening everyones expertise in photogrammetry and remote sensing.

The remote sensing and image analysis group presented three topics: On the first day, Mona Goebel presented “Spectral Analysis of Images of Plants Under Stress Using a Close-Range Camera” by Mona Goebel and Dorota Iwaszczuk. Reflectance of sunlight on plants at spectral wavelengths between 430 and 870 nm were analysed from stressed plants and low forest vegetation. The second contribution was by Lina Budde with the poster “Current Status of the Benchmark Database Bemeda” by L. E. Budde, J. Schmidt, T. Kullmann, and D. Iwaszczuk, presenting their self-developed domain specific dataset search platform: the Earth Observation Database and their Benchmark Metadata Database (BeMeDa).

On the second day Timo Kullmann presented the third topic of the group: “On the Development of a Dataset Publication Guideline: Data Repositories and Keyword Analysis in ISPRS Domain” by L. E. Budde, T. Kullmann, und D. Iwaszczuk. They (1) we analysed the data repositories that were available; (2) found common keywords in the ISPRS articles; and (3) created a tool for searching the relevant repositories. The last presentation of the event was held by Jakob Schmidt, from the geodetic measurement systems and sensors group, with “Evaluating Geometry of an Indoor Scenario with Occlusions Based on Total Station Measurements of Wall Elements” by J. Schmidt, V. Volland, P. Hübner, D. Iwaszczuk, und A. Eichhorn. This research investigates manual creation of an accurate ground truth for Scan2BIM approaches and concludes that standard deviation of wall surfaces is not sufficient for determining model quality.

During those two workshop days, numerous productive discussions were done, and scientific ideas were shared amongst university groups, research institutions, and businesses. New cultural differences and similarities were also discovered.