Photogrammetry

Photogrammetry is used when precise measurements and 3D models are needed.
It is used in archaeology to analyse archaeological sites; in construction to document buildings, structures and infrastructures; in engineering; in real estate valuation and more.

Photogrammetry and 3D scanning are two different techniques, although both are used to produce 3D digital models.

Terrestrial photogrammetry, aerial photogrammetry and oblique photogrammetry.

Terrestrial photogrammetry uses cameras placed on the ground to capture images of an object.
This technique is often used to create accurate and detailed 3D models of nearby objects.

Aerial photogrammetry uses images taken from aircraft, drones or other aerial vehicles.
These images are used to create large-scale maps and terrain models.

Oblique photogrammetry involves taking images from oblique angles (rather than directly vertically or horizontally).
This technique allows detailed images of an object to be obtained from different viewpoints, which can be useful for modelling complex structures.

Both methods have their advantages and disadvantages.

LiDAR is a good choice if you need high accuracy, dense point clouds and the ability to scan through vegetation.
LiDAR is ideal for large areas, wooded areas, infrastructure projects and sites where lighting conditions are variable.

Photogrammetry is a good choice when cost-efficiency is important, high-resolution visual documentation is required and lighting conditions are favourable.
Photogrammetry is well suited to small and medium-sized projects, architecture, construction, heritage conservation and areas with little vegetation.

Photogrammetry and photography both use photographs, but their purposes and applications are very different.
Photogrammetry focuses on the acquisition of precise geometric data, spatial analysis and the creation of 3D models, while photography focuses on the creation of visual images for artistic and documentary purposes.

The father of photogrammetry is the French engineer and scientist Aimé Laussedat, who was born in 1851.
In 1888, he discovered that photographs could be used for cartographic and topographic surveying.

This depends on a number of factors – the size of the object, its complexity and the desired level of detail.
If we look at the size parameter, a small object (small statue, product) requires 20-100 photographs, a medium object (machine, furniture) requires 100-500 photographs and a large object (building, grounds) requires 500-2000 or more photographs.

Email [email protected], call +371 27004407 or fill in the contact form on the website!

We take photographs of the object throughout Latvia, as well as abroad if necessary.
We process the data in our office in Riga and send the finished file to the client digitally.