EuroSDR Projects - Host Ireland

H. Kaartinen and J. Hyyppä: EVALUATION OF BUILDING EXTRACTION ............................ 9
ABSTRACT ........................................................................................................................................ 11
1 INTRODUCTION ....................................................................................................................... 11
2 MATERIALS............................................................................................................................... 13
2.1 Test Sites and Delivered Data............................................................................................. 13
2.1.1 General..................................................................................................................... 13
2.1.2 FGI Test Sites Espoonlahti, Hermanni and Senaatti ................................................ 13
2.1.3 IGN Test Site Amiens.............................................................................................. 18
2.2 Reference Data.................................................................................................................... 19
2.2.1 Field Measurements ................................................................................................. 19
2.2.2 Aerial Images........................................................................................................... 19
2.2.3 Ground Plans............................................................................................................ 19
2.3 Produced 3D-models .......................................................................................................... 20
3 METHODS................................................................................................................................... 20
3.1 Building Extraction............................................................................................................. 20
3.1.1 Summary of Applied Data ....................................................................................... 20
3.1.2 Building Extraction Methods ................................................................................... 21
3.1.2.1 About method descriptions ........................................................................ 21
3.1.2.2 CyberCity AG............................................................................................ 21
3.1.2.3 Hamburg University of Applied Sciences ................................................. 23
3.1.2.4 Nebel+Partner GmbH ................................................................................ 26
3.1.2.5 Stuttgart University of Applied Sciences................................................... 28
3.1.2.6 IGN ............................................................................................................ 30
3.1.2.7 ICC ............................................................................................................ 30
3.1.2.8 FOI............................................................................................................. 30
3.1.2.9 C+B Technik.............................................................................................. 33
3.1.2.10 Delft University of Technology................................................................. 34
3.1.2.11 University of Aalborg ................................................................................ 36
3.1.2.12 Dresden University of Technology............................................................ 37
3.1.3 Time Used for Building Extraction.......................................................................... 39
3.1.4 Level of Automation ................................................................................................ 40
3.1.4.1 Summary.................................................................................................... 40
3.1.4.2 CyberCity AG............................................................................................ 40
3.1.4.3 Hamburg University of Applied Sciences ................................................. 40
3.1.4.4 Nebel + Partner and ICC............................................................................ 40
3.1.4.5 Stuttgart University of Applied Sciences................................................... 41
3.1.4.6 IGN ............................................................................................................ 41
3.1.4.7 FOI............................................................................................................. 41
3.1.4.8 C+B Technik.............................................................................................. 41
3.1.4.9 Delft University of Technology................................................................. 42
3.1.4.10 University of Aalborg ................................................................................ 42
3.1.4.11 Dresden University of Technology............................................................ 42
3.2 Accuracy Evaluation........................................................................................................... 42
3.2.1 Analysis Using Reference Points............................................................................. 42
3.2.2 Analysis Using Reference Raster Ground Plans ...................................................... 43