Kurzfassung des Papers:
The paper presents an approach for real-time web-based collaborative generation and visualization of ‘as-built’ BIM content based on Google Tango enabled devices. A client-server system was developed that allows for the collection and distribution of multi-sensor based indoor scan data. The server application assembles and aggregates scan data of multiple Tango devices and applies the data stream to a post-processing pipeline to detect rooms, walls and openings. The processed data is then distributed to all clients. On the client side, the aggregated scan data is merged into an envelope model of the investigated building and visualized in real-time. The system allows for a self-sufficient reconstruction of multi-room indoor scenes and enables on-site collaboration in real-time. These features make the system especially useful in situations that are time-critical and require concurrent collection and processing of data. Our targeted use cases include search and rescue scenarios, on-site construction progress tracking and crime scene documentation.