Case study: Point cloud to BIM services and BIM modeling for the former Austro-Hungarian Bank, Subotica, Serbia

1850 M2
2023

Architectural Elegance and Symbolism

The robust building, the former Austro-Hungarian Bank (Osztrák – Magyar bank palota) designed by the esteemed Ferenc Raichle in 1901, stands as a symbol of safety and stability. Its architecture is deeply influenced by the Art Nouveau style, evident in its rich decorative elements.

The building features a variety of ornate details, including gracefully carved female faces and the head of Mercury, reflecting the mythological and artistic influences of the era. Sunflower motifs add a touch of warmth and positivity, while the inclusion of beehives symbolizes industriousness.

Notably, the building is adorned with a sphinx-shaped key and handle, symbolizing the protection of wealth and secrets. These elements combine to not only enhance the building’s aesthetic but also convey messages of prosperity, security, and mystery. This structure is more than a building; it’s a testament to the artistic vision and cultural values of the early 20th century.

Data Collection and LiDAR Scanning Challenges

The primary objective of our project was to conduct a thorough LIDAR survey and construct a detailed BIM model of the building. This involved a meticulous process of data gathering on-site, utilizing two types of LiDAR scanners complemented by photographic techniques.

One of the significant challenges we faced during the project was the limited availability of light sources. This was primarily due to prior conservation efforts, which resulted in most of the windows being covered with OSB sheets, and a partial shutdown of the electrical lighting system. These conditions necessitated innovative approaches to ensure adequate data capture.

Point Cloud Processing and Advanced Photogrammetry

Once the on-site data collection phase was complete, our team transitioned to the office environment to register the point cloud. This point cloud served as the foundational element in the careful construction of the 3D BIM model.

As the project neared completion, we employed advanced photogrammetry techniques. This allowed us to intricately craft and accurately position complex mesh details within the model, ensuring a high level of accuracy and detail in the final product. This painstaking process ensured that the 3D representation was not only accurate but also rich in detail, reflecting the true essence of the building’s structure and design.

Conclusion

Through diligent data gathering and the application of cutting-edge techniques, we’ve achieved a remarkably precise and detailed 3D architectural model. This endeavor highlights the immense capabilities of these technologies in capturing and reconstructing intricate details, even in complex settings.