Heidelbergstraße 7
07554 Korbußen/b. Gera
Tel.: 036602-141 0
Fax: 036602-141 41
Main contact person:
Mrs. Franziska Mittag
info@trigis.de
We plan all image flights individually. We advise our customers intensively in regard to quality, cost effectiveness and technical parameters. This includes, for example, the optimal image scale, longitudinal and transverse overlap and ground resolution.
Decades of experience and a highly professional team ensure optimal results for our clients concerning all aerial photogrammetry services and products.
We cover the entire spectrum, from aerial photography flights with various cameras to the analysis phase.
We use photogrammetrically generated data in various mapping/GIS systems in accordance with various requirements.
These might be for:
With the digital orthophoto (DOP) the central perspective of the aerial photography is transformed by calculations to a rectangular projection. The DOP has the geometrical properties of a map. It can be superimposed onto digital map information, spatial base data (e.g. a digital land register map) or factual data.
In accordance with DIN 18740-3, a “true orthophotograph” is an orthophotograph in which visibly dead spaces are extensively eliminated.
We fulfill this requirement with a strongly overlapping aerial imagery and high-density modelling of the surface.
The information yield of a True Orthophotograph is significantly higher compared to a classic orthophotograph. The True Orthophotograph can exhibit up to 40% more image content than classic orthophotographs. Overshoot effects are avoided, while full-screen information content and measurement accuracy increase.
Since an RGB value can be determined for each spot elevation, the method is suited to automatic derivation of textured surface models.
For the fast visualization of smaller areas drones are ideal tools!
The bird's eye view enables large-scale overviews allowing the recognition of existing structures, documents the ACTUAL status even for inaccessible locations, and delivers fast aerial maps and orthophotos.
Close range photogrammetry is used for objects from a few centimeters to around 100 meters in size.
This requires high-resolution photographs of the object, measurements with visible images or control points and possible the calibration data of the camera and objective.