New technologies impact the world of geomatics
Today, new technologies are influencing the vast world of geomatics. The development of production and digital data processing techniques makes possible the innovative description of the territory. Indeed, geographical points are determined by positioning GNSS satellite, which greatly improves their accuracy.
Major trends in the geomatics world
New technologies make photogrammetric drones more efficient. Indeed, intelligent drones are currently more useful than traditional methods for measurement professionals. They bring a real time and money saving to the operators, while guaranteeing them more safety. UAVs are becoming more and more specific to the needs of surveyors. The new technologies allow the development of automation and RTK (Real Time Kinematic). Drones can map in real time a large-scale environment by providing very high accuracy data. Therefore, data processing and 3D reconstruction are carried out much more quickly through orthophotographs, point clouds, or digital terrain models (DTMs).
New technologies also generate the emergence of another trend: bathymetry. Indeed, this science is increasingly used in the measurement of underwater depths. It allows to represent in 3D the underwater topography of lagoons, lakes, ponds, or port areas.
New innovation challenges appear with new technologies
Today, companies operating in the world of geomatics face up to a major innovation challenge: lasergrammetry. This technology is recommended when photogrammetry has limitations. Using an onboard laser device called LiDAR, the drone can calculate the distance between two objects with centimeter accuracy. With aerial, terrestrial, and aquatic drones, lasergrammetry brings a multitude of benefits to professionals.
At first, it allows to scan smooth and complex shapes, but also very thin objects such as high-voltage lines or railroads. The high precision of LiDAR can also pass through the vegetation thanks to the multi-echo. Indeed, this intelligent technology makes possible a first classification between vegetation and soil. It’s very useful in the world of forestry.
In a second step, lasergrammetry significantly reduces the data processing time that practically done in real time. This is ten times faster than for photogrammetry which requires several hours of treatment. LiDAR represents a real technological revolution for the world of geomatics worldwide.
Jean-François Baudet, CEO of Hélicéo, spoke about it in an article published in the magazine Coordinates.