Knowing well where an avalanche could start is very important for designing of barriers. The distance between alignments is a crucial parameter for a good snow-retention action. If barriers are too far …
Aerophotogrammetry along a coast can be useful for: studying the evolution of the shore line; planning coastal defense projects and works; analyzing how harbours and other structures act for sand's …
A high resoution orthomosaic helps you can clearly identify all the stone elements of an ancient road's pavement. It's really useful if it's required to remove the stones and, at the …
The first step of a "structure from motion" process is defining the "features points" of each image. These are points that the software is able to detect very well. It is also …
As you may have read before in this blog, i'm a huge fan of DIY (Do It Yoursef stuff). I lived my youth in a local Punk-Hardcore scene, so DIY was …
In structure from motion process, the software is able to generate a final report where it outputs the average value of the GSD, the Ground Sampling Distance. It's calculated based on …
The report that can be generated at the end of a photogrammetric processing contains all the steps that the structure from motion software did for you. It is very useful for …
If you need to proceed with an aerial photogrammetric survey on a construction site with work in progress, you may consider to take advantage of the lunch break to fly …
I had tested some indoor photogrammetry for 3D reconstruction of a square section artificial stream in an urban scenario. It was 2 meters heigh, 4 meters wide and 10 meter long. 100% …
It's better not to read the coordinates of a point from Google Earth and use them as Ground Control Point (GCP) in a structure from motion processing. Well, you can do …