This tutorial describes the generation of building models from LiDAR point clouds with the Laserdata LiS software. The processing chain starts from a classified point cloud, of which all building points are subset. Unique building IDs are assigned to the points by region growing grouping them to objects. Finally LOD models are derived by alpha-shape computation, polygon rectification and height extrusion based on a raster DTM.

1. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Building Models from LiDAR Point Clouds

2. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Business fields of Laserdata
Software Development of LiS for ALS, TLS and MLS data
Services in LiDAR Processing and Analysis
Research Projects

3. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at

4. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Building Models from LiDAR Point Clouds:
Input: Classified Point Cloud
Point Cloud Subset Extractor
Extract Building Points
Create Building IDs
Region Growing Building Points
Point Cloud Vectorizing
Create LOD Models

5. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Input data:
Classified Point Cloud and Raster DTM
Data courtesy of the Province of Tyrol

6. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Point Cloud Subset Extractor:
Extract Building Points

7. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Point Cloud Subset Extractor:
Extract Building Points

8. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Create Building IDs
by Region Growing

9. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Create Building IDs
by Region Growing

10. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Point Cloud Vectorizing
Derive LOD Models

11. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Point Cloud Vectorizing
Derive LOD Models
Options: Max, Mean, Min Building Height, Building Volume

12. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Point Cloud Vectorizing
Derive LOD Models
Options: Max, Mean, Min Building Height, Building Volume

13. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Point Cloud Vectorizing
Derive LOD Models

14. LASERDATA GmbH ∙ Management und Analyse von Laserscanning-Daten
Technikerstrasse 21a ∙ A-6020 Innsbruck ∙ Tel: +43-(0)512-507 48 66
Fax: +43-(0)512-507 48 69 ∙ E-mail: office@laserdata.at ∙ www.laserdata.at
Laserdata GmbH
Frederic Petrini-Monteferri
Technikerstr. 21a
A-6020 Innsbruck
Tel: ++43 (0)512 507 4866
Fax: ++43 (0)512 507 4869
Internet: www.laserdata.at
Email: office@laserdata.at
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