Our surveying services

UAS aerial photography

Aerial photography provides up-to-date data and enables visiting sites that would otherwise be difficult to reach. Drones can be used to photograph large areas and to get accurate images of landforms, vegetation, water systems and infrastructure. With real-time photography, environmental changes and the state of the sites can be closely monitored at a specific time of year or during, for example, floods or construction projects.

Orthophotography

An orthoimage is an accurate-to-measure aerial image in which dimensions have been corrected to correspond to reality (orthorectified). Orthoimages are used, for example, as background maps in site planning, in planning and monitoring construction projects, in monitoring changes in the environment (e.g. erosion, excavations or changes in vegetation), and in surveying and documenting boundaries.

3D point clouds

A 3D point cloud is a dense collection of three-dimensional GPS-points. The material is produced photogrammetrically from an orthoimage and contains X, Y and Z coordinates for each point. 3D point clouds are used as preliminary material in, for example, the creation of terrain models, mass calculations, stormwater planning and planning locations of structures in relation to the surrounding terrain.

RTK-GNSS surveying

RTK-GNSS surveying is surveying based on satellite positioning that achieves up to centimetre-level accuracy in real time. The method utilises correction signals to minimise positioning errors. It can be used extensively in planning and construction, including the production of terrain models, mapping water surfaces, marking boundaries and accurately positioning structures and infrastructure.