Can LiDAR and photogrammetry be used in the same project?
If this is your first time using LiDAR and photogrammetry services, the different technologies and types of services can be difficult to understand and differentiate.
Here is a brief explanation to help you better understand when to use each one.
How does LiDAR work?
Let’s review. LiDAR, also known as 3D laser scanning, illuminates an object or space with a laser light and records the time it takes for that laser light to return to the sensor. In this way, it manages to measure distances with a high degree of accuracy. Because of its efficiency, it has been used in multiple industries.
How does photogrammetry work?
Photogrammetry works on the basis of captured and superimposed images that are processed to generate accurate models of a given space. It is often used mainly for mapping and surveying.
What is the difference between LiDAR and photogrammetry?
On one hand, LiDAR produces its own light, which gives it an advantage in changing environments, as it does not depend on an external light source (such as the sun) and is not affected by fog. LiDAR can also “see” through solid matter such as trees or structures, making it possible to analyze the ground, even in forests or cities.
In turn, photogrammetry is more affordable in terms of cost and produces results that LiDAR is not capable of providing such as textured meshes, color point clouds, or ortho mosaics.
Can photogrammetry and LiDAR be used in the same project?
Of course! In this case, LiDAR can provide a higher level of detail to the models, allowing access to a closer-to-reality representation of the terrain. This is especially useful in engineering projects, but we will see more of its use for computer applications such as Metaverse or similar.
At ACI we handle different technologies to ensure you get the results you need. Do not hesitate to contact us to collaborate on your project.