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Photogrammetry

Photogrammetry is defined as the art, science, and technology of obtaining reliable information about physical objects and the environment through processes of recording, measuring and interpreting photographic images (satellite images, aerial photos, close range photos).

Aerial photography and laser scanning are used for making or updating maps over wide areas. By 2008, the Land Board has acquired an aircraft and all necessary equipment for aerial photography and airborne laser scanning. Aerial photographs are produced with Leica ADS100 airborne digital sensor. Height information is collected with airborne laser scanner Riegl VQ-1561i. The equipment is mounted on the aircraft Cessna Grand Caravan 208B. For image processing digital photogrammetric workstations are used.

The used software includes: XPro, Inertial Exlporer, ORIMA, Erdas IMAGINE, PRO600, Microstation, TerraSolid (TerraScan, TerraModeler, Terraphoto, TerraMatch) ArcGIS, LAStools.

Lennuk, millega Maa-amet aeropildistab ja laserskaneerib maapinda

The Environmental Investment Centre » has provided financial support for the procurement of required equipment and software.

 

The Land Board:

  • performs aerial photography and airborne laser scanning;
  • performs post-processing of aerial images and height data;
  • compiles and updates ortophoto maps and elevation models;
  • archives digital aerial photos and ortophotos;

 

  • prepares documents for public procurement in the field of photogrammetry;
  • develops the field of photogrammetry and drafts the required specifications and technical guides;
  • makes proposals for drafting or amending legislation in this field, and participates in the drafting process.


    Viimati muudetud: 10.04.2017