System and process of using photogrammetry for digital as-built site surveys and asset tracking

The invention relates to a system and process for generating a two-dimensional stitched and annotated digital image of a site having at least one as-built structure thereon. The process includes acquiring a plurality of digital images, still frames and/or video images of the site, the structure, or both, with each of the digital images including one or more reference objects positioned on or about the site, the structure, or both. The reference objects are configured to accurately scale and orient each of the digital images. The process photogrammetrically generates a three-dimensional point cloud from the digital images, and one or more reference objects and features of interest are identified in the three-dimensional point cloud. Based on the identified reference objects and features, the process and system generates the two-dimensional stitched and annotated digital image of the site and/or the structure.