Integrating Laser Scanning and Aerial Photogrammetry for Architectural Surveying

Laser scanning and photogrammetry are among the most common techniques for accurately surveying and documenting architectural and cultural monuments. Integrating these two methods makes it possible to produce high-resolution 3D representations, which facilitate detailed documentation and analysis of historic buildings and structures. This paper proposes a method for extracting feature points from a point cloud obtained through laser scanning. These feature points can be used as control points in photogrammetric processing, particularly for aligning images captured by aerial means. This approach allows for leveraging the precision of laser scanning in the photogrammetric processing of images for structures where it is challenging to create and measure artificial control points.