Get accurate morphological and topographic datas of structures, volumes or terrain, even under forest cover.

The combination of two technologies, photogrammetry and LIDAR scan, allows to obtain a relevant precision in order to model in 3 dimensions of a projected space.
The benefits of using and pairing these technologies are efficiency, accuracy and low deployment costs.

Take advantage of 3D data, orthomosaic imagery, digital elevation models (DEM) and multispectral data generated in several formats to model your subject with greater precision. Based on stereoscopic principles, drone photogrammetry enables the cost-effective collection of field data with centimetric accuracy thus providing a high-precision digital model.

Detect the unseeable. Get accurate data on the condition of the walls and the roofs

Our consulting services, based on our in-depth geomatics field experience, advanced market research and our vision of your needs will enable us to target the optimal location for your project.

Detecting water infiltration, heat loss or anomalies in the roofs and walls of the building can solve serious structural or membrane problems.

Our drone-based inspections will safely assess, with great precision, the state of your infrastructure’s components. We also confirm line of sight to increase the efficiency of the collected data and the safety of your employees.

Whether it’s for zoning plan mapping, a development plan or a market study, H4G will represent your data in 2D and 3D with a clear and detailed graphic design.

By using axonometric or planimetric aerial photography, benefit from spectacular aerial shots that will enhance the visual effects of your projects.