Photogrammetry is a branch of geodesy that uses images to obtain accurate data about objects and terrains by transforming 2D information from photographs into 3D (three-dimensional) information.

We use a mapping quadcopter drone (DJI Mavic 3E RTK) with the ability to fly up to 45 minutes in a single mission. This drone is equipped with a camera with 4/3” CMOS sensor and global shutter wide format and 1/2” CMOS (zoom 7X tele format). The camera allows video recording in 4K format (3840 x 1080p)@30fps and 20 megapixel photos (5280 x 3956 pixels).

The drone performs missions in a fully automatic mode, ensuring taking aerial photographs from predetermined heights, with both longitudinal and transverse coverage, according to the mission planning.

Images can be obtained with extremely detailed ground resolution, on the centimeter or even millimeter scale. Due to the integrated GNSS RTK receiver, the need to mark the control points at ground level is significantly reduced or, in certain circumstances, even completely eliminated.

What does the photogrammetry service include?

What is the orthophotoplane:

The orthophoto plane represents a mosaic of images taken by drone. This “composition” is not a simple distorted bonding, but a metric image, free from the distortions generated by the photogrammetric and relief camera, created in a well-established projection system (eg. the national projection system of Romania – Stereo ’70). Its resolution can be centimetric or even millimetric and the precision is calculated similarly to the point cloud example.

Proiecte verificări imbile

Send us a message