Abstract
With the continuous progress of computer and laser measurement technology, non-contact measurement based on laser scanning technology has been more and more applied in the industrial production process. Since the 1990s, 3D laser scanning technology used as a new technology has been developed rapidly. The 3D laser scanning technology, also known as High Definition Surveying (HDS), was based on the principle of laser ranging. The technology on the surface of a measured object can record some features of large dense points, including 3d coordinates, reflectance and texture information, so as to rapidly reconstruct 3D models of a measured target and various map data such as the line, the surface and the body. Meanwhile, it is a revolutionary leap that the technology improves the traditional single point measurement to the surface measurement, and realizes the digital reconstruction of the objects. Especially, for some conditions such as contact measurement and complex component detection that cannot be measured, 3D laser scanning technology has a natural advantage in the field of industrial design and measurement .
Highlights
With the development of all kinds of engineering applications, people are eager to meet the requirements of new mapping technology in complex sites and space
The 3D laser scanner uses the principle of laser ranging, which records the 3D coordinates, reflectivity and texture of a large number of dense points on the surface of the object being measured
Compared with traditional single point measurement, 3D laser scanning technology is called as a revolutionary technology from single point measurement to surface measurement, which can complete the digital reconstruction of real objects
Summary
With the development of all kinds of engineering applications, people are eager to meet the requirements of new mapping technology in complex sites and space. The traditional single point mapping technology can only obtain a single or some discrete points of 3d coordinate data. The 3D laser scanner uses the principle of laser ranging, which records the 3D coordinates, reflectivity and texture of a large number of dense points on the surface of the object being measured. It can quickly reconstruct the 3D model of the object to be measured and various map data such as line, surface, system, etc. Compared with traditional single point measurement, 3D laser scanning technology is called as a revolutionary technology from single point measurement to surface measurement, which can complete the digital reconstruction of real objects. More and more kinds of 3D laser scanners are used in the fields of cultural heritage protection, architecture, planning, civil engineering, factory renovation, interior design, building monitoring, traffic accident handling, legal evidence collection, disaster assessment, ship design, digital city, military analysis and so on
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