7 reasons why photogrammetry is indispensable for modern surveying projects
Photogrammetry is a measurement method where images are used to create accurate measurements and digital models. The technique is increasingly applied in construction, infrastructure, and land surveying. Below you will find seven reasons why photogrammetry plays such an important role today.
1. Large areas mapped quickly
With photogrammetry, large terrains, sites, or structures can be captured in a short time via drone surveys. This makes the method particularly efficient for projects where speed and overview are important.
2. High measurement accuracy
Thanks to advanced processing techniques, images can be converted into accurate measurement products such as orthophotos, point clouds, and terrain models, often used in drone mapping. Correctly placed control points ensure that the measurement results remain reliable.
3. Cost-efficient alternative
Because not every point needs to be measured individually on the terrain, photogrammetry often saves time and labor hours. This makes the method more cost-efficient than traditional measurement methods in many cases.
4. Exceptional level of detail
Photogrammetry provides a very detailed image of the terrain or structure. As a result, measurements, analyses, and checks can also be performed digitally afterwards, without having to return to the site.
5. Widely applicable
The technique is applied in various contexts such as:
- terrain and site surveys
- volume calculations
- site monitoring
- inventory of existing situations
This makes photogrammetry a flexible solution for various project types.
6. Safer working
Because much of the data is collected remotely, less physical presence on the site is required. This reduces risks, especially in hard-to-reach or unsafe locations.
7. Good basis for further processing
Photogrammetric data can be easily integrated into CAD, BIM, or GIS environments. Thus, it forms a solid basis for design, planning, and reporting.
When is photogrammetry not the best choice?
Although photogrammetry offers many advantages, it is not the ideal solution in every situation. For very complex internal structures, 3D laser scanning may be a better solution.