Technologies

Leica CityMapper-2 is designed for airborne urban mapping and offers unprecedented data capture performance to meet the growing demand for 3D data. This hybrid airborne sensor is equipped with LiDAR scanner, nadir camera and oblique camera. During a flight, the scanner captures 2 million 3D points every second, and cameras take six photos 150 MP each (RGB and NIR nadir images, as well as four oblique images). All data is captured simultaneously, using one coordinate system, making the data highly coherent and qualitative.

The VQ-1560-II system is a complete integrated measurement platform enabling simultaneous acquisition of laser scanning point clouds and RGB photos. The scanner can measure from up to 5.6 km, which allows for effective mapping of vast areas. With a scanning speed of 2 x 1.33 million points per second, it is the most effective device of that type available on the market. All sensors with the GPS / IMU positioning system are mounted on SOMAG GSM 4000 stabilised bed.

It is our primary large-format airborne camera for acquisition of aerial images. The CMOS technology, applied in the camera, allows for obtaining 25% higher efficiency in comparison with the previous generation of the same cameras. The dynamic range of the device is at the level of 78 dB, whereas its pixel across track is at the level of 25,728 x 14,592 pixels. The camera records images in four spectral ranges: red, green, blue and near infrared.

Although Riegl LMS-Q680i is currently being gradually replaced by more recent sensors, it is still possible to utilise the device in an effective manner, e.g. for smaller urban areas or while carrying out low-altitude flights under clouds. The pulse repetition frequency of the laser pulse is at the level of 400 kHz, whereas its maximum scanning angle reaches the level of 60°. The embedded rotating polygon mirror ensures regular distribution of points while performing specific measurements.

The high-quality thermal camera which can be used for simultaneous operation with a scanner and medium-sized camera. Recording and analysis of infrared radiation allows for measuring the temperature of structures on the land surface. The thermal measuring range is between -40°C and 120°C, whereas thermal sensitivity is lower than 0.005°C. The camera captures images with geometric resolution of 640 x 480 pixels at the speed of 6 images per second.