Consultants for Surveying Engineering
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Orthophoto

Use, types, specializing

There are many applications of orthophotos, ranging from the documentation of landscape changes to base data for infrastructure projects. Two types of orthophotos are distinguished:

  • DTM-based: sharp edges, displacement of objects elevated from the terrain like buildings or trees (leaning)
  • DSM-based: partly blurred edges, correct display of elevated objects
DTM-based ortho
DSM-based ortho

AVT is specialized in several disciplines:

  • High-resolution orthos (2.5 to 5 cm) for communities, water- or energy suppliers, often complemented by terrestrial surveys
  • Winter orthos for ski resorts 
  • Thermal orthos for analyzing building energy efficiency (current research project)
5 cm ortho
Thermal ortho
Winter-summer transition at St. Johann / Tyrol