building vectorization and wall rasters · 2020-03-11 · terrascan user event levi 2012 building...
Post on 03-Aug-2020
9 Views
Preview:
TRANSCRIPT
TerraScan User Event Levi 2012
Building Vectorization andWall Rasters
• Copy \bergen• Copy \license\*.lic into c:\terra\license if you
are missing any licenses• Run \setup\setup.exe
TerraScan User Event Levi 2012
Training Data Bergen, Norway
Courtesy of Blom Group
0.7 km² with 2.8 pts / m²
Blom MiDAS five camera system– Vertical 5616 * 3744 pixels 36 mm lens– Forward5616 * 3744 pixels 85 mm lens– Backward 5616 * 3744 pixels 85 mm lens– Left 5616 * 3744 pixels 85 mm lens– Right 5616 * 3744 pixels 85 mm lens
Cameras 600 m altitude vertical 11 cm pixel size→
TerraScan User Event Levi 2012
Source Data Laser points, ground classified Raw images in ECW format Camera calibration documents as spreadsheet POS EO output (raw exterior orientation) 3D roof lines
Tie points True ortho
TerraScan User Event Levi 2012
Vertical Images
TerraScan User Event Levi 2012
Oblique Images
TerraScan User Event Levi 2012
3D Roof Lines
Norwegian mapping standard Relevant roof lines in 3D Good: nice level of detail Bad: do not fully model the roofs, many flaws
TerraScan User Event Levi 2012
Goals Classify laser data Convert camera calibration and bring in exterior
orientation Improve positioning of images Create 3D building models from roof line work Create textures for building walls Produce a fly over animation
top related