Automatic merging without manual reworking is extremely difficult.

Incomplete or incorrect twins lead to limited usability.

Automatic classification of components, systems, trades, and functions is still unreliable.

Digital twins (BIM)

• Buildings
• Construction sites
• Infrastructure facilities
• Industry facilities
• Continuous monitoring and updating

IFC models from video data

• User friendly
• Little effort
• Usable for everyone

Semantic reconstruction

• Assignment of semantic / classification