There are many different types of 3D scanners, primarily categorized as laser
scanners, structured light scanners, and photogrammetric scanners. Each type has
distinct operating principles and application scenarios.
Laser scanners measure surfaces by emitting laser beams and receiving
reflected light. They are suitable for high-precision industrial inspections,
such as measuring automotive and aerospace parts. Structured light scanners use
a projector to project a raster or coded pattern, and a camera to capture the
deformed pattern to calculate 3D data. They are suitable for fast scanning of
small and medium-sized objects. Photogrammetric scanners rely on images captured
from multiple angles and use algorithms to reconstruct 3D models. They are
commonly used for scanning large scenes, such as architecture and
archaeology.
In recent years, handheld 3D scanners have gained popularity due to their
flexibility and ease of use. Users simply move the device around the target
object to complete the scan. In the future, with the optimization of AI
algorithms, 3D scanners will become even more intelligent, further expanding
their application scenarios.
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