7: Comparison of Digital Mapping Techniques Photogrammetry and 3d Laser Scanning Based On The Architectural Survey of Eclectic Residences In São Carlos

The growing adoption of 3D mapping technologies in cultural heritage underscores the need for comparative analyses between photogrammetry and laser scanning. This article addresses this gap through a study of eclectic residences in São Carlos (SP), heritage currently at risk of disappearance. The methodology comprised data acquisition with a Faro Focus Premium laser scanner and a digital camera, followed by processing in Recap Pro and Agisoft Metashape to generate and compare point clouds, meshes, and technical drawings. Results highlight differences in acquisition time, point cloud density, and the range of exported file formats. Such diversity directly affects interoperability, facilitating or limiting integration across platforms. The study concludes that selecting the appropriate technique requires careful consideration of project goals and available resources. Whether the priority lies in visual fidelity or dimensional accuracy, aligning methods with objectives ensures optimized documentation and contributes effectively to the preservation of architectural heritage.