We combined the use of drones and an in-house developed application called PhotVis to create 3D digital replicas of assets. These 3D models present a photo-realistic, 3D, contextualised digital replica of each asset requiring inspection.
A single drone was used to fly over the reservoir and capture photos of the entire site. For any areas that weren’t accessible by a drone, we used other devices to capture images, including mobile phone cameras.
We imported the photographic data into photogrammetry processing software. This software uses geo-spatial information to triangulate a position and photo angle in 3D. If there are any areas where the UAV is not able to access, manual photography can be undertaken using any device that is available, including mobile phone cameras.
The photographic data was imported into photogrammetry processing software which triangulated a position, aligned and angled each photo in 3D space. We then imported the camera alignments and mesh surfaces into PhotoVis which spatially contextualised the photos and projected them onto the mesh surface, creating a photo-realistic model of the asset.
The client then used the model to carry out desk-top inspections of the site, identify degradation such as cracks and corrosion, and flag them for maintenance and repair.