Swiss Precision
LiDAR Mapping

Driven by Helimap System® Technology

The Helimap System® is a pioneering technology rooted in heliborne lasergrammetry (LiDAR) and digital photogrammetry. Engineered in collaboration with the photogrammetry and topometry laboratories of the Swiss Federal Institute of Technology Lausanne (EPFL), our state-of-the-art system ensures precise and accessible data acquisition, even in challenging terrains.

Experience & expertise

LiDAR & Pphotogrammetry

Data acquisition

Terrestrial acquisition

Aerial acquisition

Experience and Expertise

Having started in 2003 as a LiDAR pioneer, and evolving into a public limited company by 2008, we bring over 15 years of industry-leading expertise to your projects.

Components

Laser scanners Riegl: Up to 2 Mio points/sec measurement
PhaseOne digital cameras: 80-150 MPix, 55-65° aperture
Navigation Grade IMU: IXBLUE
GNSS receiver: Tri-frequency (GPS-GLONASS-GALILEO)
Thermal camera: Flir SC655
Up to 4 oblique cameras: 18-50 Mpix
Video: Up to 6 GPS-synchronized 4K videos
360° panoramic camera
Additional customizable sensors as per project requirements.

Systems

We have 7 LiDAR-photogrammetric systems adaptable for various platforms, ensuring flexibility and global readiness for any project.

LiDAR & Photogrammetry

Advantages of the LiDAR-photo combination:

High-fidelity DTM/DSM measurements
High point density of up to >800 pts/m2
High-resolution orthophotos and photointerpretation
Point cloud colorization using oriented raw images

What is LiDAR

LiDAR (Light Detection and Ranging) scans the earth’s surface with laser pulses to create a dense, accurate three-dimensional point cloud. It is especially potent in capturing terrains obscured by dense vegetation.

What is photogrammetry

Photogrammetry is a remote sensing technology based on the acquisition of digital images of the earth from different points of view. By correlation calculation, 3D models are derived as well as orthoimages (orthorectified & georeferenced images).

This technical approach generates products that are easily interpretable, even by a non-expert eye. In combination with LiDAR these technologies form the basis of modern digital cartography.

Data Acquisition

Aerial Geodata Acquisition

Fast, accurate & flexible

The Helimap System® is a pioneering technology rooted in heliborne lasergrammetry (LiDAR) and digital photogrammetry. Engineered in collaboration with the photogrammetry and topometry laboratories of the Swiss Federal Institute of Technology Lausanne (EPFL), our state-of-the-art system ensures precise and accessible data acquisition, even in challenging terrains.

Ideal for corridors & surfaces
High precision / resolution (1-10 cm)
Oblique or vertical operation during the same flight
Constant accuracy regardless of slope
No calibration required during installation
Easy and inexpensive worldwide deployment
Mapping of complex and inaccessible areas
Non-invasive survey
Short installation time (60 min) between the arrival of the helicopter and the flight
Independence of helicopter type
System certified (STC EASA and FAA) on AS350/355, Robinson, Bell and any helicopter equipped with a winch

Vertical acquisition

Oblique acquisition

Acquisition by UAV

Acquisition by ultralight/aircraft

Terrestrial Geodata Acquisition

Mobile mapping on road, rail, boat or other carrier

The Helimap System® technology can also be deployed on land vehicles, trains or boats. An operational mode that perfectly complements aerial measurements by offering new perspectives, especially for engineering structures such as underpasses or tunnels.

Ideal for road & rail projects
Very high resolution of the point cloud (>1200 pts/m2)
Very high precision data (<2 cm)
High acquisition speed (60 km/h)
360° panoramic images
Ideal combination with an aerial survey (ALS). Our technologies will provide you with an exhaustive, precise and consistent digitization of your infrastructures

Aerial survey performance

We like to quantify the performance of our systems based on the accuracy of the point cloud offered and the quality and resolution of the accompanying imagery.
The table below shows these values as a function of flying height for our airborne systems.

Cartographic accuracy is given by comparing measurements (laser/photogrammetric) with ground control points (GCP). Photogrammetric accuracy can be characterized by the planimetric comparison of points on the orthophoto. The accuracy of LiDAR is divided into 2 components: relative and absolute accuracy. The relative accuracy refers to the internal noise of the point cloud (independent of the trajectory), while the absolute component refers to the control points. Accuracy is always measured on a hard surface (1 sigma).

What is the difference between absolute and relative precision?

These two terms often cause misunderstandings which are even used intentially as selling arguments by software vendors, hardware producers or service providers. We believe it is important to make our customers aware of this fact.
Accuracy (or absolute precision) quantifies the degree of conformity of a measured quantity to the true value. Precision (or relative precision) quantifies the degree of repeatability of a measurement, i.e. the degree to which a subsequent measurement will give an identical result.