1. Types of measures
Although there are many different models of terrestrial laser scanners, the basic operating principle is the same for all of them:
a motor for controlled rotation around the instrument's main axis (usually almost vertical);
in parallel, a system of mirrors or prisms rotates about an axis perpendicular to the first ;
a laser pump emits a beam which, using different techniques, provides distance information;
we'll also store the intensity of the return signal.
It is possible to determine the three-dimensional position of the impact of the emitted beam in a reference frame local to the scanner position with the polar information shown in figure
The Ultimate Scientific and Technical Reference
This article is included in
Radar technologies and their applications
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Types of measures
Some considerations about lasers
Bibliography
Software tools
CloudCompare: open source tool for processing 3D point clouds and meshes.
JRC 3D Reconstructor: Gexcel's proprietary software for processing 3D scans from several manufacturer platforms, and for processing point clouds, meshes and photos.
Events
INTERGEO, the international trade fair for the geospatial community, takes place every year in Germany.
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
FARO® manufacturer and supplier of instrumentation and software for 3D measurement, imaging and realization technology.
GeoSLAM™ manufacturer and solution provider for 3D mobile mapping technology.
The Ultimate Scientific and Technical Reference
