1. Production of digital orthophoto for “Geographic Information System for Mine Action” 2nd Workshop of SEEMACC GIS GROUP in ITF Slovenia M.Sc. Vasja Bric, Geodetski zavod Slovenije d.d.

2. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP2 Contents project organisationproject organisation overview of the projectoverview of the project statistics of the projectstatistics of the project problems and solutionsproblems and solutions resultsresults future improvementsfuture improvements

3. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP3 Project organisation Aerial photography of the area (GZS)Aerial photography of the area (GZS) Planning of ground control points (GZS)Planning of ground control points (GZS) Marking, measurement, computation and transformation of GCPs (BHMAC)Marking, measurement, computation and transformation of GCPs (BHMAC) Orthophoto production (GZS) (scanning, aerialtriangulation, DTM, orthophoto computation, mosaicing, finalisation)Orthophoto production (GZS) (scanning, aerialtriangulation, DTM, orthophoto computation, mosaicing, finalisation)

4. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP4 Overview of the project Two areas:Two areas: –Lašva 1:2500 and 1:1000 (same area) –Pelagičevo 1:2500 –Scale of aerial survey: map scale 1:2500 - photo scale 1:12500map scale 1:2500 - photo scale 1:12500 map scale 1:1000 - photo scale 1:5000map scale 1:1000 - photo scale 1:5000

5. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP5 Lašva 1:2500

6. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP6 Lašva 1:1000

7. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP7 Pelagičevo 1:2500

8. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP8 Statistics Area no. of GCPs no. of tie points no. of images RMS on GCPs Lašva1:2500301120180 Y 0.08 m X 0.08 m Z 0.18 m Lašva1:100040562157 Y 0.05 m X 0.05 m Z 0.10 m Pelagičevo1:250039886274 Y 0.04 m X 0.04 m Z 0.03 m

9. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP9 Problems and solutions marking of GCPsmarking of GCPs measurements of natural detailmeasurements of natural detail GCP accuracyGCP accuracy GSD (1 pixel on the ground)GSD (1 pixel on the ground) 1:2500 (2.25x1.5 km) if GSD is 0.10m 338 MB1:2500 (2.25x1.5 km) if GSD is 0.10m 338 MB 1:1000 (0.75x0.5 km) if GSD is 0.05m 150 MB1:1000 (0.75x0.5 km) if GSD is 0.05m 150 MB

10. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP10 Natural detail for a GCP

11. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP11 Results OrthophotoOrthophoto –Number of sheets: Lašva 1:2500 84 (x 338 MB is 28.4 GB)Lašva 1:2500 84 (x 338 MB is 28.4 GB) Lašva 1:1000 128 (x 150 MB is 19.2 GB)Lašva 1:1000 128 (x 150 MB is 19.2 GB) Pelagičevo 1:2500 134 (x 338 MB is 45.3 GB)Pelagičevo 1:2500 134 (x 338 MB is 45.3 GB) DTM (grid, characteristic lines and spot heights)DTM (grid, characteristic lines and spot heights)

12. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP12 Orthophoto Lašva 1:1000

13. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP13 Orthophoto Lašva 1:1000

14. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP14 Orthophoto Lašva 1:1000

15. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP15 DTM

16. V.Bric, GZS d.d. 2nd Workshop of SEEMACC GIS GROUP16 Future improvements planning all activities (time of aerial survey)planning all activities (time of aerial survey) planning of aero-triangulationplanning of aero-triangulation marking of GCPs and measurementsmarking of GCPs and measurements aerial surveyaerial survey additional field work (missing GCPs)additional field work (missing GCPs) transformation parameters from governmental to WGS84 systemtransformation parameters from governmental to WGS84 system