We capture 3D point cloud data and create models and mosaic data using sonar, laser and cameras.

AUS-ROV utilise multi-beam and single-beam sonars to capture three dimensional spatial data on underwater structures and environments. Multibeam sonars are used to acquire high resolution bathymetric survey data and produce 3D underwater topographic models. Single beam sonars can be utilised to profile dimensions of internal or external structures and replicate these structures in 3D cloud software. AUS-ROV specialise in using sonar technology to locate shipwrecks and reefs, chart shipping hazards and map underwater environments and structures in 3D.

We utilise highly sophisticated, cutting edge technology for spatial data acquisition. Our hydrographic surveyors, GIS specialists and technicians are highly regarded among their industry peers. When spatial scientific services are required, speak to the team at AUS-ROV and learn how we can provide a tailored solution to ensure you get the best possible project outcome.

Sonar data is a great way of interpreting underwater structures, and often, due to environmental and physical constraints, is the only available method when conditions can be challenging for classic sensors like camera or laser scanner.

Typical use of sonar in the survey field is attached to a boats hull below the water surface to scan the below seafloor, and in combination with GPS positioning data, can be processed in real time and mosaicked automatically through survey acquisition software. Sonar mounted on an ROV or AUV enables us to get closer to the subject and map in greater detail than is generally possible from surface level. This method brings one problem and that is the precise positioning of the ROV. With sufficient software it is possible to process data with semiautomatic mosaicking methods. Raw data is extracted as single images and with precision aligned in GIS software. Algorithm for stitching and blending is used for processing all images in one homogenous mosaic. As that it can be georeferenced on existing plans and orthophoto.  With sonar mosaicked data all details can be identified and mapped for further analysis. Over time multiple mosaics can be stacked and changes can be monitored. Vectorising data, mapping details of interest, further improves interoperability among the different software platforms and assists in connection to other branches of similar professions.

Creating 3D models of submerged items using underwater laser scanning can reveal fine-scale three-dimensional features not identifiable though use of other conventional survey technologies. AUS-ROV 2G Robotics ULS200 underwater laser scanner can produce sub-millimetre accurate results.