Preserving Smithills Hall's Historical Charm Through Drone-Based 3D Modelling, Building Elevation Survey, and Photogrammetry
Smithills Hall, nestled in Bolton’s heart, has enraptured history enthusiasts and preservationists for centuries. Our mission was to immortalize its architectural splendor and historical significance through a meticulous project, preserving both horizontal and vertical dimensions for future generations.
Client: Smithills Hall Heritage Trust
Industry: Heritage and Preservation
Smithills Hall, a testament to the region’s rich heritage dating back to the 14th century, entrusted us with its stewardship. The Trust recognized the need for a comprehensive 3D modeling project, encompassing a detailed building elevation survey and photogrammetry, to safeguard this architectural masterpiece’s historical significance.
Preserving Historical Grandeur: The primary challenge was preserving intricate architectural details both horizontally and vertically. The hall’s ornate decorations and subtle structural elements demanded meticulous attention.
Accurate Spatial Representation: The historical value required unparalleled accuracy in our 3D modeling, ensuring faithful representation of the hall’s exterior and interior.
Our comprehensive solution combined advanced technology and meticulous planning:
Ground Control Points (GCPs) and Drone Survey:
- GCP Placement: A network of strategically positioned GCPs was established around Smithills Hall, with known geodetic coordinates, using hybrid/ integrated surveying technique
- Drone Survey with Zenmuse P1 45MP Camera: The DJI Matrice 300 (M300) with the Zenmuse P1 45MP camera and Post-Processed Kinematic (PPK) technology captured detailed aerial imagery of Smithills Hall, ensuring accuracy and comprehensiveness.
Building Elevation Survey and Photogrammetry:
- Photogrammetric Processing: Advanced photogrammetric techniques, including Agisoft software, processed high-resolution imagery to create detailed 3D models and point clouds of the hall’s exterior.
- Deliverables: Our deliverables included comprehensive PDF documentation, DWG files, and OBJ files for architects and preservationists, allowing precise analysis. The 3D model was hosted online for interactive exploration.
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Our implementation phase combined precision and artistry:
- GCP Placement and Drone Survey: GCPs and the DJI Matrice 300 with Zenmuse P1 captured architectural details and spatial data.
- Building Elevation Survey and Photogrammetry: Photogrammetric processing resulted in highly detailed 3D models, point clouds.