https://www.capnor.com/en/laser-scanning

Terrestrial Laser Scanning
Laser scanning is a cutting-edge technology that uses laser beams to
capture precise measurements and create detailed 3D representations
of objects, environments, or entire landscapes. This technology has
transformed various industries, including architecture, construction,
archaeology, and forensics, by providing an efficient and accurate
method for collecting spatial data.
At the core of the procedure is the
principle of LIDAR (Light Detection
and Ranging). A laser scanner
emits a laser beam that travels to
an object and reflects back to the
sensor. By measuring the time it
takes for the laser to return, the
scanner calculates the distance to
the object with high precision. This
process is repeated rapidly across
a field of view, resulting in a dense
"point cloud" of data. Each point in
this cloud represents a precise
location in 3D space, creating a
detailed digital replica of the
scanned area.
Applications and Benefits of Satellite Laser
Scanning System
In architecture and construction, laser scanning is invaluable for
creating as-built models of existing structures. It allows architects to
capture accurate dimensions of buildings, which can then be used to
design renovations or extensions. Construction professionals use it to
verify that the construction is proceeding according to design
specifications, reducing errors and rework. Additionally, laser scanning
facilitates the creation of Building Information Models (BIM), which
integrate data throughout a building’s lifecycle.
In archaeology, laser scanning preserves historical sites by creating
digital records that can be studied without physical intrusion. This is
especially important for fragile or remote sites where traditional
methods might be destructive or impractical. Similarly, in forensics,
laser scanning is used to document crime scenes in detail, enabling
investigators to revisit the scene virtually, even long after it has been
cleared.
Beyond these industries, laser scanning is also critical in fields like
transportation, where it aids in the planning of infrastructure projects,
and in manufacturing, where it ensures the precision of components. In
geospatial applications, it is used to map large areas quickly and
accurately, whether for environmental monitoring, urban planning, or
disaster management.
Challenges and Future Directions of Airborne
Laser Scanning Model Systems
All in all, despite its advantages, laser scanning does have challenges.
The technology requires expensive equipment and expertise to operate,
and processing the vast amounts of data generated can be time-
consuming. However, advancements in software and hardware are
addressing these issues, making laser scanning more accessible and
faster.