Marine surveys often include the requirement for quality imagery obtained either as still images or video and increasingly, photogrammetry – the latter involves the reconstruction of seabed habitats and features from individual images to create 3-dimensional, digital models and high-resolution, 2-dimensional orthomosaics that can be integrated into GIS outputs. Marine EcoSol team members are experienced in recording high quality still images and video in HD or 4K in a wide range of underwater conditions for the purposes of documenting habitats and species and for later image analysis.

We have successfully used photogrammetry on projects to repeatedly document survey sites in dark or turbid conditions that would otherwise be almost impossible to accurately visualise in situ or in a single image. We have created models of long-term monitoring sites maintained by Natural Resources Wales to facilitate the efficient maintenance and survey of the sites by enabling divers to re-acquaint themselves with a site prior to diving. The technique enables the exact locations to be monitored repeatedly over time to demonstrate and quantify community and/or physical changes on the seabed.

Photogrammetry enables us to bring the survey location to you. Using high-definition cameras with top-of-the-range lighting systems we can produce high-quality, detailed models. This means any survey site can be re-visited back in the office time after time to check data, ask new questions and show non-divers the habitats, communities and species being monitored.